Zoological Journal of the Linnean Society最新文献_第10页

Unravelling the obscure homology: postembryonic development of chaetotaxic traits in a basal hexapod taxon (Collembola: Tomoceridae) 揭开晦涩难懂的同源关系：基底六足类群（Collembola: Tomoceridae）混沌分类学特征的胚后发育

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-02-19 DOI: 10.1093/zoolinnean/zlae020

Daoyuan Yu, Yating Zhang, Ziqiang Wang, Feng Hu, Manqiang Liu

{"title":"Unravelling the obscure homology: postembryonic development of chaetotaxic traits in a basal hexapod taxon (Collembola: Tomoceridae)","authors":"Daoyuan Yu, Yating Zhang, Ziqiang Wang, Feng Hu, Manqiang Liu","doi":"10.1093/zoolinnean/zlae020","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae020","url":null,"abstract":"Homology assessment is essential for systematic zoology, but for many taxa and traits, precise recognition of homology can be challenging with limited evidence. Tomoceridae is one of the earliest branches in the elongate-bodied springtails (Collembola: Entomobryomorpha), and is among the commonest and best-known families in the class. However, the homology of some important traits is still obscure in this group, including its characteristic chaetotaxic traits. In this study, we conducted the first rigorous homology assessment of chaetotaxy in Tomoceridae based on ontogenetic evidence. The postembryonic development of chaetotaxy was investigated in three species of Tomocerus. The primary chaetotaxy of first instar larvae show high similarity within Tomocerinae. The postembryonic development involves extensive transformations between chaetal types. The continuous dwarfism of primary chaetae during development leads to apparent oligochaetosis in adults. The thoracic bothriotricha are transformed from primary macrochaetae. The sensory chaetotaxy is stable during postembryonic development, and shows interspecific differences mainly on the mesothorax and the fourth abdominal segment. This study will promote the future use of chaetotaxic traits in the taxonomic and phylogenetic studies of Tomoceridae, and will potentially illuminate the early evolution of Entomobryomorpha.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139909205","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

Osteology of the two-fingered oviraptorid Oksoko avarsan (Theropoda: Oviraptorosauria) 双指卵盗龙Oksoko avarsan（兽脚亚目：卵盗龙科）的骨骼结构

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-02-17 DOI: 10.1093/zoolinnean/zlae011

Gregory F Funston

{"title":"Osteology of the two-fingered oviraptorid Oksoko avarsan (Theropoda: Oviraptorosauria)","authors":"Gregory F Funston","doi":"10.1093/zoolinnean/zlae011","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae011","url":null,"abstract":"Oviraptorosaurs are among the most diverse and best-known extinct theropod groups. Their bizarre anatomy and their social and reproductive behaviour are now well understood. Among the oviraptorid subclade, the two-fingered Oksoko avarsan is particularly well-represented. It is known from several exquisite skeletons, preserving not only the entire skeleton, but multiple stages through ontogeny, providing an exemplar for understanding the anatomy of oviraptorids and the changes that their skeletons experienced over their lifetimes. Here I comprehensively describe the osteology of Oksoko avarsan and comment on its ontogenetic variation. Excellent preservation of the specimens provides unparalleled detail into the anatomy of an oviraptorid, providing valuable context for interpreting other oviraptorosaurs. Several changes are observed to occur through ontogeny relating to robustness of the bones and proportions of the skeleton, but there is little evidence suggesting that discrete features like the cranial crest arose late in ontogeny. Instead, early development of the cranial crest in oviraptorids, and its internal connection with the nasal passages and other pneumatic spaces, argue in favour of a role in vocalization, perhaps alongside sexual display. Detailed anatomical and ontogenetic data, like those provided by known specimens of Oksoko avarsan, are necessary to help to underpin ongoing research into the palaeobiology and macroevolution of Oviraptorosauria.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139898818","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

Complex geohistory of continental islands advanced allopatric evolution even for the highly dispersive generalist red fox (Vulpes vulpes): multiple phylogenetic groups in the Japanese Archipelago 大陆岛屿的复杂地史推进了同域进化，即使是高度分散的通性赤狐（Vulpes vulpes）：日本列岛的多个系统发育群体

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-02-13 DOI: 10.1093/zoolinnean/zlae007

Takumi Watanabe, Yuji Yamazaki

{"title":"Complex geohistory of continental islands advanced allopatric evolution even for the highly dispersive generalist red fox (Vulpes vulpes): multiple phylogenetic groups in the Japanese Archipelago","authors":"Takumi Watanabe, Yuji Yamazaki","doi":"10.1093/zoolinnean/zlae007","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae007","url":null,"abstract":"The red fox (Vulpes vulpes) plays a key role as an apex-generalist predator in terrestrial ecosystems. We estimated the phylogeographic structure, time to most recent common ancestor (tMRCA), and demographic dynamics based on the mitochondrial DNA cytochrome b gene and partial D-loop region sequences of 182 red foxes in the Japanese Archipelago, and discussed the geohistory and biotic interactions that influenced them. The Hondo red fox (Vulpes vulpes japonica), distributed on Honshu, Shikoku, and Kyushu islands, was supported as a monophyletic group. The tMRCA of the Hondo clade was ~0.148 (95% highest posterior density: 0.236–0.080) Ma. The Hondo clade diverged into two subclades, and each was roughly distributed on the eastern or western area of the Japanese Archipelago. The effective population size of the Hondo red fox remained nearly constant until ~0.03–0.02 Ma; thereafter, it grew ~10-fold. The Kita red fox (Vulpes vulpes schrencki) distributed on Hokkaido Island formed a polyphyletic group, not including the Hondo clade. The completely different phylogenetic structures of the Hondo and Kita red fox indicate that they have independent evolutionary backgrounds. These findings provide crucial insights into the formation mechanisms of diversity and endemism of mammals on continental islands.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139733597","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

Ecological and phylogenetic influences on limb joint kinematics in wild primates 生态和系统发育对野生灵长类动物四肢关节运动学的影响

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-02-10 DOI: 10.1093/zoolinnean/zlae004

Judith Janisch, Allison McNamara, Lydia C Myers, Nicole Schapker, Noah T Dunham, Taylor Phelps, Roger Mundry, Tobin Hieronymus, Liza J Shapiro, Jesse W Young

{"title":"Ecological and phylogenetic influences on limb joint kinematics in wild primates","authors":"Judith Janisch, Allison McNamara, Lydia C Myers, Nicole Schapker, Noah T Dunham, Taylor Phelps, Roger Mundry, Tobin Hieronymus, Liza J Shapiro, Jesse W Young","doi":"10.1093/zoolinnean/zlae004","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae004","url":null,"abstract":"Arboreal locomotion is precarious and places multiple challenges upon stability. Studies have shown that captive primates respond to narrower and steeper supports by flexing limb joints and adopting a compliant gait. We tested whether these same kinematic responses are adopted by wild primates freely ranging over a variety of supports in their natural habitats. We recorded five species of platyrrhines, five species of catarrhines, and four species of strepsirrhines with modified GoPro cameras and used remote measurement to quantify substrate characteristics. Video images were imported into ImageJ to measure the angular kinematics of limb joints during quadrupedal locomotion on a variety of arboreal supports. We statistically tested for associations between joint posture and substrate characteristics, and then disentangled the influence of phylogeny and substrate on limb joint kinematics using variation partitioning and redundancy analysis. Our results partially confirm previous kinematic studies and suggest variation in support orientation, more than diameter or compliance, influences quadrupedal gait kinematics. Phylogenetic relatedness explained more variation in the data than substrate properties. This suggests primates either prospectively choose relatively ‘safe’ substrates for locomotion, or that they possess locomotor adaptations independent of limb joint kinematics per se to overcome the challenges of the precarious arboreal environment.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139716989","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

An overview of genetic manipulation tools in the studies of ciliates, with emphasis on gene knockout, knockdown, and overexpression 纤毛虫研究中的遗传操作工具概述，重点是基因敲除、敲除和过表达

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-02-08 DOI: 10.1093/zoolinnean/zlad196

Jinyu Fu, Yunyi Gao, Feng Gao, Yalan Sheng, Saleh A Al-Farraj, Zigui Chen, Chundi Wang

{"title":"An overview of genetic manipulation tools in the studies of ciliates, with emphasis on gene knockout, knockdown, and overexpression","authors":"Jinyu Fu, Yunyi Gao, Feng Gao, Yalan Sheng, Saleh A Al-Farraj, Zigui Chen, Chundi Wang","doi":"10.1093/zoolinnean/zlad196","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlad196","url":null,"abstract":"Microorganisms have expanded our understanding of biodiversity and exhibit crucial research values. Ciliated protists are a highly differentiated group of eukaryotic microorganisms with exceptional features, such as numerous cilia, dimorphic nuclei, and genome-wide gene rearrangement, that have made them ideal research models for revealing many biological processes. Studies of the ciliate Tetrahymena thermophila have greatly advanced our understanding of RNA self-splicing and enzymatic activity, telomere biology, and the Nobel Prize-winning telomerase mechanisms. Genome rearrangement during the sexual reproduction (conjugation) of ciliates, involving the elimination of ~25–90% of germline DNA, provides an opportunity to study large-scale genome remodelling while also revealing a more thorough mode of transposon repression, i.e. Piwi-interacting small RNA-mediated DNA deletion in the somatic nucleus. Although much progress has been made, research has focused mainly on a few model species that are amenable to gene editing. For other species, although they are more suitable to address some scientific gaps, research cannot be carried out owing to limitations of genetic engineering. Here, we summarize the existing genetic engineering strategies for ciliates, expecting to provide inspiration for the development and optimization of genetic engineering tools for ciliates and other organisms cannot yet be edited genetically.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139716988","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

Molecular identification of immature Cerambycinae (Coleoptera: Cerambycidae): revisiting the significance of immature morphologies 未成熟角闪虫（鞘翅目：角闪虫科）的分子鉴定：重新审视未成熟形态的意义

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-02-02 DOI: 10.1093/zoolinnean/zlad182

Seunghyun Lee, Seunghwan Lee

{"title":"Molecular identification of immature Cerambycinae (Coleoptera: Cerambycidae): revisiting the significance of immature morphologies","authors":"Seunghyun Lee, Seunghwan Lee","doi":"10.1093/zoolinnean/zlad182","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlad182","url":null,"abstract":"The microstructure of immature insect forms plays a crucial role in systematics, especially in inferring phylogenetic relationships and designating the morphological basis for taxonomic units. However, the microstructure of longhorn beetle larvae and pupae is poorly understood, owing to difficulties in obtaining them and technical limitations. Among 90 larvae and 80 pupae collected and photographed, 31 larvae and 15 pupae remained unidentified after morphological and bionomical evidence-based identification. Cytochrome c oxidase I sequences were amplified successfully from 68 larvae and 59 pupae. Molecular identification using tree-based analysis identified 28 of 31 undetermined larvae (90.3%) and 14 of 15 undetermined pupae (93.3%) to the species level. We highlight the usefulness of DNA barcoding in identifying immature forms of cerambycid beetles and filling gaps in public databases. This study also demonstrates how microstructure can clarify the morphological basis of polyphyletic taxa on the phylogeny and emphasizes the significance of the microstructure of immature stages in longhorn beetle systematics.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139676931","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

Unravelling cryptic diversity in the Paratrichodorus allius-group species complex to resolve eight new species of the genus and new insights on the molecular phylogeny (Nematoda: Trichodoridae) 揭示 Paratrichodorus allius 群物种复合体的隐秘多样性，解析该属的 8 个新物种，以及对分子系统发育的新认识（线虫纲：毛线虫科）

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-01-24 DOI: 10.1093/zoolinnean/zlad194

Wilfrida Decraemer, Antonio Archidona-Yuste, Ilenia Clavero-Camacho, Alessio Vovlas, Carolina Cantalapiedra-Navarrete, Alba N Ruiz-Cuenca, Pablo Castillo, Juan E Palomares-Rius

{"title":"Unravelling cryptic diversity in the Paratrichodorus allius-group species complex to resolve eight new species of the genus and new insights on the molecular phylogeny (Nematoda: Trichodoridae)","authors":"Wilfrida Decraemer, Antonio Archidona-Yuste, Ilenia Clavero-Camacho, Alessio Vovlas, Carolina Cantalapiedra-Navarrete, Alba N Ruiz-Cuenca, Pablo Castillo, Juan E Palomares-Rius","doi":"10.1093/zoolinnean/zlad194","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlad194","url":null,"abstract":"The stubby-root nematode genus Paratrichodorus comprises species of plant polyphagous ectoparasitic nematodes distributed worldwide and a few of them are plant virus-vectors (tobravirus). This is one of the most difficult nematode genera in terms of species identification, since it is phenotypically conserved with closely related species and is highly sensitive to the specimen fixation and preservation processes. Using an integrative and multidisciplinary taxonomy framework, we determined species boundaries among the Paratrichodorus populations from a P. allius species-complex sampled in cultivated and natural ecosystems across Spain. We support the hypothesis that nematode diversity of the P. allius species-complex remains underestimated and describe here a total of eight new species on the basis of detailed morphological and molecular characterization of 16 Paratrichodorus populations: Paratrichodorus asidonaensis sp. nov., Paratrichodorus benalupensis sp. nov., Paratrichodorus hinogerus sp. nov., Paratrichodorus litoralis sp. nov., Paratrichodorus paraallius sp. nov., Paratrichodorus rocianerus sp. nov., Paratrichodorus tarifaensis sp. nov., and Paratrichodorus uliaensis sp. nov. This study emphasizes the importance of properly applying a broad taxonomic framework in plant-parasitic nematodes. It is also relevant for plant health, since it correctly delimits species morphologically closed to the virus vector nematode, P. allius, and gives proper molecular markers for its unequivocal identification.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139550997","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

Comparative anatomy of the vocal apparatus in bats and implications for the diversity of laryngeal echolocation 蝙蝠发声器官的比较解剖及其对喉回声定位多样性的影响

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-01-20 DOI: 10.1093/zoolinnean/zlad180

Nicolas L M Brualla, Laura A B Wilson, Vuong Tan Tu, Taro Nojiri, Richard T Carter, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Michael Doube, Dai Fukui, Daisuke Koyabu

{"title":"Comparative anatomy of the vocal apparatus in bats and implications for the diversity of laryngeal echolocation","authors":"Nicolas L M Brualla, Laura A B Wilson, Vuong Tan Tu, Taro Nojiri, Richard T Carter, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Michael Doube, Dai Fukui, Daisuke Koyabu","doi":"10.1093/zoolinnean/zlad180","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlad180","url":null,"abstract":"Most of over 1400 extant bat species produce high-frequency pulses with their larynx for echolocation. However, the debate about the evolutionary origin of laryngeal echolocation in bats remains unresolved. The morphology of the larynx is known to reflect vocal adaptation and thus can potentially help in resolving this controversy. However, the morphological variations of the larynx are poorly known in bats, and a complete anatomical study remains to be conducted. Here, we compare the 3D laryngeal morphology of 23 extant bat species of 11 different families reconstructed by using iodine contrast-enhanced X-ray microtomography techniques. We find that, contrary to previously thought, laryngeal muscle hypertrophy is not a characteristic of all bats and presents differential development. The larynges of Pteropodidae are morphologically similar to those of non-bat mammals. Two morphotypes are described among laryngeal echolocating bats, illustrating morphological differences between Rhinolophoidea and Yangochiroptera, with the main variations being the cricothyroid muscle volume and the shape of the cricoid and thyroid cartilages. For the first time we detail functional specialization for constant frequency echolocation among Rhinolophoidea. Lastly, the nasal-emitting taxa representing a polyphyletic group do not share the same laryngeal form, which raises questions about the potential modular nature of the bat larynx.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139505841","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

From the dark side of paradise: a new natural replication of cave planthopper evolution from Hawaiian lava tubes (Hemiptera: Fulgoromorpha: Cixiidae) 来自天堂的黑暗面：夏威夷熔岩洞穴栉孔虫进化的新的自然复制（半翅目：Fulgoromorpha：Cixiidae）

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-01-19 DOI: 10.1093/zoolinnean/zlad198

Hannelore Hoch, Megan L Porter, Christy M Slay, Michael E Slay, Mireille Steck, Rebecca A Chong

{"title":"From the dark side of paradise: a new natural replication of cave planthopper evolution from Hawaiian lava tubes (Hemiptera: Fulgoromorpha: Cixiidae)","authors":"Hannelore Hoch, Megan L Porter, Christy M Slay, Michael E Slay, Mireille Steck, Rebecca A Chong","doi":"10.1093/zoolinnean/zlad198","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlad198","url":null,"abstract":"The Hawaiian Islands are known to harbour a rich and diverse fauna of troglobionts (obligate subterranean species). To date, 74 obligate cavernicolous arthropod species have been documented from across the main Hawaiian islands, the majority of which were from Hawaiʻi Island, and mostly from lava tubes of Kilauea volcano, the youngest volcano on the island. A recent bioinventory of the Kipuka Kanohina lava tube system on the south-western side of Mauna Loa volcano revealed the existence of previously unknown cave-adapted species. Among them is the first cave-adapted species of the planthopper genus Iolania, Iolania frankanstonei Hoch & Porter sp. nov. Morphological and molecular data suggest that the species is closely related to the epigean (i.e. surface-dwelling) species Iolania perkinsi, which occurs in surface environments on Hawaiʻi Island. Thus, parapatric speciation is assumed, further corroborating the assumption that adaptive shifts are the major evolutionary patterns underlying the evolution of troglobionts on young oceanic islands.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139505871","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

New Cretaceous neosuchians (Crocodylomorpha) from Thailand bridge the evolutionary history of atoposaurids and paralligatorids 泰国新发现的白垩纪新蜥形类（鳄形目）沟通了顶龙类和短吻鳄类的进化史

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-01-10 DOI: 10.1093/zoolinnean/zlad195

Yohan Pochat-Cottilloux, Komsorn Lauprasert, Phornphen Chanthasit, Sita Manitkoon, Jérôme Adrien, Joël Lachambre, Romain Amiot, Jeremy E Martin

{"title":"New Cretaceous neosuchians (Crocodylomorpha) from Thailand bridge the evolutionary history of atoposaurids and paralligatorids","authors":"Yohan Pochat-Cottilloux, Komsorn Lauprasert, Phornphen Chanthasit, Sita Manitkoon, Jérôme Adrien, Joël Lachambre, Romain Amiot, Jeremy E Martin","doi":"10.1093/zoolinnean/zlad195","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlad195","url":null,"abstract":"The origin of modern crocodylians is rooted in the Cretaceous, but their evolutionary history is obscure because the relationships of outgroups and transitional forms are poorly resolved. Here, we describe a new form, Varanosuchus sakonnakhonensis gen. nov., sp. nov., from the Early Cretaceous of Thailand that fills an evolutionary gap between Paralligatoridae and Atoposauridae, two derived neosuchian lineages with previously unsettled phylogenetic relationships. Three individuals, including a complete skull and associated postcranial remains, allow for a detailed description and phylogenetic analysis. The new taxon is distinguished from all other crocodylomorphs by an association of features, including a narrow altirostral morphology, a dorsal part of the postorbital with an anterolaterally facing edge, a depression on the posterolateral surface of the maxilla, and fully pterygoid-bound choanae. A phylogenetic analysis confirms the monophyly and taxonomic content of Atoposauridae and Paralligatoridae, and we underline the difficulty in reaching a robust definition of Eusuchia. Furthermore, we put forward further arguments related to the putative terrestrial ecology with semi-aquatic affinities of atoposaurids based on their altirostral snout morphology and osteoderm ornamentation.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139407837","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