Zoological Journal of the Linnean Society最新文献_第5页

Morphological diversification with emphasis on the structural and homology patterns of male genitalia in genus Limnebius (Leach 1815; Hydraenidae: Coleoptera) Limnebius (Leach 1815; Hydraenidae: Coleoptera) 属雄性生殖器结构和同源模式的形态多样化

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-09-08 DOI: 10.1093/zoolinnean/zlae100

Andrey Rudoy, Ling-Zeng Meng

{"title":"Morphological diversification with emphasis on the structural and homology patterns of male genitalia in genus Limnebius (Leach 1815; Hydraenidae: Coleoptera)","authors":"Andrey Rudoy, Ling-Zeng Meng","doi":"10.1093/zoolinnean/zlae100","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae100","url":null,"abstract":"Limnebius exhibits uniform external appearance but variable male genitalia: from differently curved rod shapes in the subgenus Bilimneus to up to seven longitudinally separated folds or appendages in Limnebius s.s.. Among nonsexual traits, two subgenera diverge only in the wing. The aedeagal complexity in Limnebius s.s. is associated with the secondary sexual structures on the abdomen and metatibia; larger body size, which forms two clusters; and male-biased sexual dimorphism. To cluster the subdivisions with phylogenetically unresolved relationships, we examined the coincidence of the traits in both sexes, based on the premise of the independent and monophyletic origin of histologically unsimilar elements. The folds and additional appendages on the median lobe, abdominal paired rows of setae, and protuberances show that the L. parvulus and L. nitidus groups have maximum aedeagal complexity in the L. parvulus and L. nitiduloides subgroups, respectively. The L. parvulus group exhibits a gradual increase in the number of elements of the aedeagi. The histology of connections of the parameres and additional appendages to the median lobe, along with that of the flagellum opening, reveal the subgroups’ relationship in the L. nitidus group, as well as a decrease in the complexity of the male genitalia in their recent branches.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"12 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142158755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new dentition-based phylogeny of Litopterna (Mammalia: Placentalia) and ‘archaic’ South American ungulates 基于牙齿的Litopterna（哺乳纲：胎生目）和 "古老的 "南美洲有蹄类动物的新系统发育

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-09-07 DOI: 10.1093/zoolinnean/zlae095

Hans P Püschel, Sarah L Shelley, Thomas E Williamson, Fernando A Perini, John R Wible, Stephen L Brusatte

{"title":"A new dentition-based phylogeny of Litopterna (Mammalia: Placentalia) and ‘archaic’ South American ungulates","authors":"Hans P Püschel, Sarah L Shelley, Thomas E Williamson, Fernando A Perini, John R Wible, Stephen L Brusatte","doi":"10.1093/zoolinnean/zlae095","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae095","url":null,"abstract":"Ever since the discovery of Macrauchenia patachonica by Charles Darwin in 1834, the affinities of litopterns—a group of extinct South American Native Ungulates (SANUs)—have been elusive. In particular, the interfamilial relationships and timing of the familial diversification within the order Litopterna have not been addressed with adequate taxon and character sampling, and modern phylogenetic methods. We address these issues using a new morphological matrix of 703 dental and mandibular characters, scored for the earliest litopterns alongside early SANUs of other orders (Astrapotheria, Notoungulata, Pyrotheria, and Xenungulata). We also included members of families that have been often included within Litopterna, such as Didolodontidae, Protolipternidae, Indaleciidae, and Notonychopidae, the last two sometimes grouped in the order Notopterna. We conducted maximum parsimony and undated and tip-dated Bayesian phylogenetic analyses. Our results indicate that (1) didolodontids, protolipternids, and kollpaniines should be considered early SANUs, but not particularly closely related to any order, (2) Indaleciidae and Notonychopidae usually form a monophyletic group (Notopterna), and (3) Litopterna is a monophyletic unit composed of four families [Adianthidae, Anisolambdidae (subfamilies Anisolambdinae and Sparnotheriodontinae), Macraucheniidae, Proterotheriidae], and tentatively the notoptern families Indaleciidae and Notonychopidae with a probable origin ~64.0 Mya in the Early Palaeocene.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"31 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142152405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phylogenomics of Characidae, a hyper-diverse Neotropical freshwater fish lineage, with a phylogenetic classification including four families (Teleostei: Characiformes) 胭脂鱼科的系统发生组学--一个超级多样化的新热带淡水鱼系，包括四个科的系统发生分类（远洋鱼类：胭脂鱼形目）

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-09-03 DOI: 10.1093/zoolinnean/zlae101

Bruno F Melo, Rafaela P Ota, Ricardo C Benine, Fernando R Carvalho, Flavio C T Lima, George M T Mattox, Camila S Souza, Tiago C Faria, Lais Reia, Fabio F Roxo, Martha Valdez-Moreno, Thomas J Near, Claudio Oliveira

{"title":"Phylogenomics of Characidae, a hyper-diverse Neotropical freshwater fish lineage, with a phylogenetic classification including four families (Teleostei: Characiformes)","authors":"Bruno F Melo, Rafaela P Ota, Ricardo C Benine, Fernando R Carvalho, Flavio C T Lima, George M T Mattox, Camila S Souza, Tiago C Faria, Lais Reia, Fabio F Roxo, Martha Valdez-Moreno, Thomas J Near, Claudio Oliveira","doi":"10.1093/zoolinnean/zlae101","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae101","url":null,"abstract":"Neotropical tetras of the family Characidae form the largest and most taxonomically complex clade within the order Characiformes. Previous phylogenetic relationships concur on the recognition of four major subclades, whereas knowledge on intergeneric and interspecific relationships remains largely incomplete or nonexistent. We sampled 575 specimens of 494 species and 123 genera classified in Characidae, generated new molecular data of ultraconserved elements (UCEs), and used likelihood and Bayesian analyses. The phylogeny (1348 UCE loci: 538 472 bp) yielded clades with unprecedented resolution at species- and genus-levels, allowing us to propose a new classification of former Characidae into four families: Spintherobolidae, Stevardiidae, Characidae, and Acestrorhamphidae. The family Stevardiidae includes nine subfamilies: Landoninae, Xenurobryconinae, Glandulocaudinae, Argopleurinae, Hemibryconinae, Stevardiinae, Planaltininae, Creagrutinae, and Diapominae. The family Characidae includes five subfamilies: Aphyocharacinae, Cheirodontinae, Exodontinae, Tetragonopterinae, and Characinae. The family Acestrorhamphidae congregates 15 subfamilies: Oxybryconinae, Trochilocharacinae, Stygichthyinae, Megalamphodinae, Stichonodontinae, unnamed subfamily, Stethaprioninae, Pristellinae, Jupiabinae, Tyttobryconinae, Hyphessobryconinae, Thayeriinae, Rhoadsiinae, Grundulinae, and Acestrorhamphinae. The phylogeny resolves intergeneric relationships and supports revalidation of Myxiops, Megalamphodus, Ramirezella, Holopristis, and Astyanacinus, synonymy of Aphyodite, Genycharax, and Psellogrammus, and expansion of Cyanogaster, Makunaima, Deuterodon, Hasemania, Hemigrammus, Bario, Ctenobrycon, and Psalidodon. The phylogeny opens avenues for new systematic reviews and redefinitions of included genera.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"32 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142131052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The phylogeny and diversification of the western Eurasian Phaedusinae (Gastropoda: Stylommatophora: Clausiliidae) 欧亚大陆西部蹄甲目（腹足纲：蹄甲目：Clausiliidae）的系统发育和分化

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-09-02 DOI: 10.1093/zoolinnean/zlae103

Nóra M Magonyi, Zoltán Fehér, Miklós Szekeres, Barna Páll-Gergely

{"title":"The phylogeny and diversification of the western Eurasian Phaedusinae (Gastropoda: Stylommatophora: Clausiliidae)","authors":"Nóra M Magonyi, Zoltán Fehér, Miklós Szekeres, Barna Páll-Gergely","doi":"10.1093/zoolinnean/zlae103","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae103","url":null,"abstract":"The little-known western Eurasian taxa of the Phaedusinae (land snail family Clausiliidae) are Tertiary relicts, which are widely separated geographically from the rest of the subfamily occurring in eastern Eurasia. In order to elucidate the phylogenetic relationships of this group, we carried out molecular analyses with 11 of the 16 genera using nuclear gene sequences. Our results revealed that within the subfamily, Nothoserrulina and Pamphylica, together with Caspiophaedusa, Dobatia, Pravispira, and Serrulina, belong to a clade that is sister to that of all east Eurasian Phaedusinae except Synprosphyma. In contrast, Graecophaedusa, Laeviphaedusa, Pontophaedusella, and Serrulinella, together with Pontophaedusa, belong to paraphyletic lineages diverging between the branching point of these clades and that of the most basal Synprosphyma lineage. Laeviphaedusa and Pontophaedusella represent the earliest western Eurasian lineages, estimated to date back to the Eocene–Oligocene boundary. Comparison of our phylogeny to morphological traits of the genera identified clade-specific character states of the shells and the reproductive organs. Based on fossil records and on palaeogeographical and palaeofloristic data, we also propose a model for the geographical origin and radiation of this subfamily in Eurasia.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"316 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142123710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Discordance between mitochondrial, nuclear, and symbiont genomes in aphid phylogenetics: who is telling the truth? 蚜虫系统发育中线粒体、核基因组和共生体基因组之间的不一致：谁说的是真话？

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-08-26 DOI: 10.1093/zoolinnean/zlae098

Emmanuelle Jousselin, Armelle Coeur d’acier, Anne-Laure Clamens, Maxime Galan, Corinne Cruaud, Valérie Barbe, Alejandro Manzano-Marín

{"title":"Discordance between mitochondrial, nuclear, and symbiont genomes in aphid phylogenetics: who is telling the truth?","authors":"Emmanuelle Jousselin, Armelle Coeur d’acier, Anne-Laure Clamens, Maxime Galan, Corinne Cruaud, Valérie Barbe, Alejandro Manzano-Marín","doi":"10.1093/zoolinnean/zlae098","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae098","url":null,"abstract":"Aphids (Aphididae) are intensively studied due to their significance as pests and their captivating biological traits. Despite this interest, the evolutionary history of this insect family is poorly understood. Recent phylogenomic analyses have produced conflicting topologies, complicating our understanding of aphid trait evolution. In this work, we aimed to unravel the backbone phylogeny of aphids. We sequenced partial and whole mitochondrial genomes from 87 species. We additionally sequenced 42 nuclear loci across 95 aphid species and sourced 146 genes from 12 new and 61 published genomes from aphid obligate endosymbiont, Buchnera aphidicola. We obtained data from these three sources for a subset of aphid species, facilitating a comparative analysis of their signal. Our analyses confirm the monophyly of most subfamilies, validating current taxonomic classifications. However, relationships between subfamilies remain contentious in both mitochondrial and nuclear phylogenies. The topologies obtained with Buchnera are fully resolved but disagree with host phylogenies at deep evolutionary scales and conflict with views on the evolution of aphid morphology. We discuss alternative hypotheses for these discrepancies. Finally, the paucity of phylogenetic information at deep timescales may stem from an initial rapid radiation. Though challenging to establish, this scenario may inherently hinder resolution in aphid phylogenetics.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"4 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142084676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biogeography and phylogeny of the scavenging amphipod genus Valettietta (Amphipoda: Alicelloidea), with descriptions of two new species from the abyssal Pacific Ocean 清道夫片脚类动物Valettietta属（两栖类：Alicelloidea）的生物地理学和系统发育，以及来自太平洋深海的两个新物种的描述

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-08-19 DOI: 10.1093/zoolinnean/zlae102

Eva C D Stewart, Guadalupe Bribiesca-Contreras, Johanna N J Weston, Adrian G Glover, Tammy Horton

{"title":"Biogeography and phylogeny of the scavenging amphipod genus Valettietta (Amphipoda: Alicelloidea), with descriptions of two new species from the abyssal Pacific Ocean","authors":"Eva C D Stewart, Guadalupe Bribiesca-Contreras, Johanna N J Weston, Adrian G Glover, Tammy Horton","doi":"10.1093/zoolinnean/zlae102","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae102","url":null,"abstract":"Valettietta Lincoln & Thurston, 1983 (Amphipoda: Alicelloidea) is an infrequently sampled genus of scavenging amphipod, with a known bathymetric range from 17–5467 m encompassing a variety of habitats from anchialine caves to abyssal plains. Molecular systematics studies have uncovered cryptic speciation in specimens collected from the abyssal Pacific, highlighting uncertainty in the description of Valettietta anacantha (Birstein & Vinogradov, 1963). Here, we apply an integrative taxonomic approach and describe two new species, Valettietta trottarum sp. nov. and Valettietta synchlys sp. nov., collected at abyssal depths in the Clarion-Clipperton Zone, Pacific Ocean. Both species can be distinguished by characters of the gnathopods, uropod 3, and the inner plate of the maxilliped. Further, molecular phylogenetic analyses of two mitochondrial (16S rDNA and COI) and two nuclear (Histone 3 and 28S rRNA) regions found both new species to form well-supported clades and allowed us to re-identify previously published records based on genetic species delimitation. The biogeography of Valettietta is discussed in light of these re-evaluated records, and a new taxonomic key to the genus is provided. These new taxa highlight the strength of applying an integrated taxonomic approach to uncover biodiversity, which is critical in regions being explored for potential industrial purposes.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"41 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142007360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

How not to describe a species: lessons from a tangle of anacondas (Boidae: Eunectes Wagler, 1830) 如何不描述一个物种：蟒蛇（蟒科：Eunectes Wagler，1830年）的教训

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-08-19 DOI: 10.1093/zoolinnean/zlae099

Wolfgang Wüster, Hinrich Kaiser, Marinus S Hoogmoed, Luis M P Ceríaco, Lutz Dirksen, Christophe Dufresnes, Frank Glaw, Axel Hille, Jörn Köhler, Thore Koppetsch, Konstantin D Milto, Glenn M Shea, David Tarkhnishvili, Scott A Thomson, Miguel Vences, Wolfgang Böhme

{"title":"How not to describe a species: lessons from a tangle of anacondas (Boidae: Eunectes Wagler, 1830)","authors":"Wolfgang Wüster, Hinrich Kaiser, Marinus S Hoogmoed, Luis M P Ceríaco, Lutz Dirksen, Christophe Dufresnes, Frank Glaw, Axel Hille, Jörn Köhler, Thore Koppetsch, Konstantin D Milto, Glenn M Shea, David Tarkhnishvili, Scott A Thomson, Miguel Vences, Wolfgang Böhme","doi":"10.1093/zoolinnean/zlae099","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae099","url":null,"abstract":"A recent revision of the anacondas (Serpentes: Boidae: Eunectes), with the description of a new species of green anaconda, generated extensive publicity, but also provoked considerable controversy due to inadequacies of the evidence used and errors in nomenclature. We here use the case of this problematic publication to: (i) highlight common issues affecting species delimitations, especially an over-reliance on mitochondrial DNA data, and reiterate best practices; (ii) reanalyse the data available for anacondas to establish the true current state of knowledge and to highlight lines of further research; and (iii) analyse the nomenclatural history and status of the genus. While our analysis reveals significant morphological variation in both green and yellow anacondas, denser sampling and an analysis of informative nuclear markers are required for meaningful species delimitation in Eunectes. Tracing the history of name-bearing types establishes Trinidad as the type locality for Boa murina Linnaeus, 1758 and allows identification of the extant lectotype for the species. Finally, we emphasize the responsibility of both journals and authors to ensure that published taxonomic work meets the burden of evidence required to substantiate new species descriptions and that species are named in compliance with the rules of zoological nomenclature.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"96 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142007507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The systematics and nomenclature of the Dodo and the Solitaire (Aves: Columbidae), and an overview of columbid family-group nomina 渡渡鸟和接龙（鸟类：鸽科）的系统学和命名法，以及鸽科群命名法概览

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-08-16 DOI: 10.1093/zoolinnean/zlae086

Mark T Young, Julian P Hume, Michael O Day, Robert P Douglas, Zoë M Simmons, Judith White, Markus O Heller, Neil J Gostling

{"title":"The systematics and nomenclature of the Dodo and the Solitaire (Aves: Columbidae), and an overview of columbid family-group nomina","authors":"Mark T Young, Julian P Hume, Michael O Day, Robert P Douglas, Zoë M Simmons, Judith White, Markus O Heller, Neil J Gostling","doi":"10.1093/zoolinnean/zlae086","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae086","url":null,"abstract":"The Dodo and its extinct sister species, the Solitaire, are iconic exemplars of the destructive capabilities of humanity. These secondarily terrestrial columbids became extinct within a century of their first encounter with humanity. Their rapid extinction, with little material retained in natural history collections, led 18th and some early 19th century naturalists to believe that these aberrant birds were mythological. This meant that the nomenclatural publications in which their scientific nomina were established were based on accounts written before the species became extinct. As such, no type specimens were designated for either the Dodo or the Solitaire. Our in-depth historical overview of both species and associated family-group nomina found that the nominal authority of the Dodo-based family group is not what is reported in the literature. Moreover, our detailed review of the family-group nomina based on columbid genera ensures that the current columbid family-group systematization is valid. Changing nomenclatural norms between the 19th and 20th centuries had a profound impact on Dodo nomenclature; so much so that the Dodo is an example of how pervasive nomenclatural ‘ripples’ can be and a warning for our current world of multiple nomenclatural codes.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"26 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141991930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cranial anatomy of the Triassic rhynchosaur Mesosuchus browni based on computed tomography, with a discussion of the vomeronasal system and its deep history in Reptilia 基于计算机断层扫描的三叠纪雷暴龙中鼻龙（Mesosuchus browni）颅骨解剖，并讨论爬行动物中的咽喉系统及其深层历史

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-08-10 DOI: 10.1093/zoolinnean/zlae097

William Foster, Paul Gensbigler, Jacob D Wilson, Roger M H Smith, Tyler R Lyson, Gabriel S Bever

{"title":"Cranial anatomy of the Triassic rhynchosaur Mesosuchus browni based on computed tomography, with a discussion of the vomeronasal system and its deep history in Reptilia","authors":"William Foster, Paul Gensbigler, Jacob D Wilson, Roger M H Smith, Tyler R Lyson, Gabriel S Bever","doi":"10.1093/zoolinnean/zlae097","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae097","url":null,"abstract":"The stem lineage of Archosauria is populated by a diverse fossil record that remains notably understudied relative to the crown clade. Prominent among these specimens is a beautifully preserved skull of the early mid-Triassic rhynchosaur Mesosuchus browni [Iziko South African Museum (SAM) 6536], whose phylogenetic position has considerable influence on patterns of pan-archosaurian cranial evolution. We used high-resolution, micro-computed tomography to re-examine the anatomy of this specimen, building on previous studies that were either limited to external observations or restricted to the braincase. A digital segmentation of the cranial elements and primary neurovascular canals of SAM-PK-6536 allows for expanded character scoring and constitutes a foundation for future comparative insights. Our data support the phylogenetically oldest instance of a pneumatized maxilla in a pan-archosaur, bringing the record of antorbital pneumatization into closer alignment with that of the neurocranium. The nasal cavity and primary palate of Mesosuchus includes a complex septomaxilla, a novel element anterior to the vomer, and is likely to have supported a well-developed vomeronasal system. The evolution of this system is discussed in terms of both phylogenetic pattern and how the skeletal architecture of Mesosuchus and other fossils could inform the signalling dynamics that pattern the vomeronasal system during development.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"5 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141915113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phylogenomics of Phengodidae (Coleoptera: Elateroidea): towards a natural classification of a bioluminescent and paedomorphic beetle lineage, with recognition of a new subfamily Phengodidae (Coleoptera: Elateroidea) 的系统进化组学：实现生物发光和拟态甲虫的自然分类，并确认一个新的亚科

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-08-10 DOI: 10.1093/zoolinnean/zlae093

Vinicius S Ferreira, André S Roza, Felipe F Barbosa, Viridiana Vega-Badillo, Santiago Zaragoza-Caballero, José Ricardo M Mermudes, Michael A Ivie, Aslak K Hansen, Adam J Brunke, Hume B Douglas, Alexey Solodovnikov, Robin Kundrata

{"title":"Phylogenomics of Phengodidae (Coleoptera: Elateroidea): towards a natural classification of a bioluminescent and paedomorphic beetle lineage, with recognition of a new subfamily","authors":"Vinicius S Ferreira, André S Roza, Felipe F Barbosa, Viridiana Vega-Badillo, Santiago Zaragoza-Caballero, José Ricardo M Mermudes, Michael A Ivie, Aslak K Hansen, Adam J Brunke, Hume B Douglas, Alexey Solodovnikov, Robin Kundrata","doi":"10.1093/zoolinnean/zlae093","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae093","url":null,"abstract":"Phengodidae (Coleoptera: Elateroidea), commonly known as glowworm beetles, are a small family of bioluminescent and paedomorphic beetles. There are few phylogenetic studies of Phengodidae, and these are mostly discordant, especially when comparing morphology-based and molecular-based phylogenetic hypotheses. Here, we used the anchored hybrid enrichment approach to undertake the first phylogenomic analysis of Phengodidae (≤358 loci and 39 taxa) and evaluate the higher-level classification of the group. In agreement with previous molecular studies, we recovered Phengodidae as sister to Rhagophthalmidae, and the Old World Cydistinae as sister to all New World Phengodidae. In contrast to previous hypotheses, both Phengodinae and Mastinocerinae were each recovered as monophyletic. Cenophengus was found to be sister to Mastinocerinae, in contrast to some previous hypotheses that placed it as sister to all New World Phengodidae. Considering its morphological divergence, we here establish Cenophenginae subfam. nov. Despite the largest and most comprehensive sampling of Phengodidae in any molecular-based study to date, we had only limited success in revealing the relationships among genera within the most species-rich subfamily, Mastinocerinae. Further studies should focus on the phylogeny and classification of this taxonomically neglected subfamily, on the phylogenetic placement of enigmatic Penicillophorinae, and on seeking morphological support for the main clades of Phengodidae.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"83 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141915108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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