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Two new species of suspected mushrooms of the suborder Marasmiineae from mid-Cretaceous Burmese amber (Basidiomycota, Agaricales) 白垩纪中期缅甸琥珀中发现的 Marasmiineae 亚目两种新的疑似蘑菇(担子菌纲,姬松茸目)
IF 1.9 3区 地球科学
Cretaceous Research Pub Date : 2024-07-18 DOI: 10.1016/j.cretres.2024.105968
Shilong Guo , Xinru Deng , Zhiheng Ma , Ning Mao , Weijia Huang
{"title":"Two new species of suspected mushrooms of the suborder Marasmiineae from mid-Cretaceous Burmese amber (Basidiomycota, Agaricales)","authors":"Shilong Guo ,&nbsp;Xinru Deng ,&nbsp;Zhiheng Ma ,&nbsp;Ning Mao ,&nbsp;Weijia Huang","doi":"10.1016/j.cretres.2024.105968","DOIUrl":"10.1016/j.cretres.2024.105968","url":null,"abstract":"<div><p>Although mushrooms are important components of ecosystems, their large-scale evolutionary history patterns are rarely known, mainly due to the limited fossil record and the lack of comprehensive phylogenetic studies. Here we present and depict two new species of mushrooms, <em>Marasmiamimum cretaceum</em> gen. et sp. nov. and <em>Mesoagaracites burmitis</em> gen. et sp. nov., based on amber specimens from the mid-Cretaceous period in Kachin State, Myanmar, suspected to belong to the Marasmiineae suborder. The two genera exhibit limited traits, such as ultraminiature basidiomata, a broadly convex pileus with a smooth surface and slightly incurved margin, and sparse lamellae, make it challenging to categorize them into exact families. Similar characteristics are also found in the family Agaricaceae, Mycenaceae, and Omphalotaceae. These new findings enhance our understanding of mid-Cretaceous mushroom biodiversity during the Mesozoic. Furthermore, we provide a catalog of mushroom records in deep time.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"164 ","pages":"Article 105968"},"PeriodicalIF":1.9,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141851100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Late Jurassic–Early Cretaceous dinosaur track assemblages from northwestern Hebei Province, China: Implications for paleoenvironment and paleoecology 中国河北省西北部晚侏罗世-早白垩世恐龙足迹组合:对古环境和古生态的影响
IF 1.9 3区 地球科学
Cretaceous Research Pub Date : 2024-07-11 DOI: 10.1016/j.cretres.2024.105960
Tingyuan Yuan , Huan Xu , Xiaojun Jiang , Yongqing Liu , Hongwei Kuang , Nan Peng , Jun Chen , Chao Cen
{"title":"Late Jurassic–Early Cretaceous dinosaur track assemblages from northwestern Hebei Province, China: Implications for paleoenvironment and paleoecology","authors":"Tingyuan Yuan ,&nbsp;Huan Xu ,&nbsp;Xiaojun Jiang ,&nbsp;Yongqing Liu ,&nbsp;Hongwei Kuang ,&nbsp;Nan Peng ,&nbsp;Jun Chen ,&nbsp;Chao Cen","doi":"10.1016/j.cretres.2024.105960","DOIUrl":"10.1016/j.cretres.2024.105960","url":null,"abstract":"<div><p>The relationship between the Middle–Late Jurassic Yanliao Biota and the Early Cretaceous Jehol Biota has long been unresolved due to an approximately 20 Ma “vertebrate fossil gap”. However, a large number of dinosaur tracks have been reported from the Tuchengzi/Houcheng Formation in northern Hebei–western Liaoning, which occupies the stratigraphic position between the Yanliao Biota and the Jehol Biota. This paper presents new discoveries of diverse dinosaur track assemblages from the Upper Jurassic–Lower Cretaceous Houcheng Formation in the Shangyi Basin, northwestern Hebei Province, China. Based on the ichnological analyses, tracks are assigned to the sauropod <em>Parabrontopodus</em>, theropod <em>Grallator</em>, <em>Anchisauripus</em>, <em>Eubrontes</em>, and <em>Therangospodus</em>. The theropod tracks were likely produced by small-sized feathered theropod dinosaurs (Coelurosauria) that thrived in both the Yanliao Biota and the Jehol Biota. These findings imply that these two biotas evolved successively, without evidence of a complete turnover or extinction of biotas. Sedimentological studies of the tracksites reveal their occurrence in diverse sedimentary environments, including braided sandbar, floodplain, and deltaic plain. The coexistence of highly diverse dinosaur tracks with various preservation environments indicates that the living environment during that time was relatively comfortable. The increased diversity of dinosaur tracks in the upper part of the Houcheng Formation closely aligns with the intense volcanic activity of the Zhangjiakou Formation in northwestern Hebei Province. This suggests that volcanic activity likely served a crucial function in the proliferation of the dinosaur fauna in the Shangyi Basin and northern North China during the earliest Cretaceous.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"163 ","pages":"Article 105960"},"PeriodicalIF":1.9,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141714359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Virtual reconstruction of the neurocranial anatomy of Kansajsuchus extensus (Neosuchia: Paralligatoridae) from the Upper Cretaceous of Tadzhikistan with a review of braincase osteology in Neosuchia 塔吉克斯坦上白垩世Kansajsuchus extensus(新蜥形目:短吻鳄科)神经颅骨解剖虚拟重建及新蜥形目脑壳骨学综述
IF 1.9 3区 地球科学
Cretaceous Research Pub Date : 2024-07-11 DOI: 10.1016/j.cretres.2024.105959
Ivan T. Kuzmin , Ekaterina A. Sichinava , Evgeniia V. Mazur , Victor A. Gombolevskiy
{"title":"Virtual reconstruction of the neurocranial anatomy of Kansajsuchus extensus (Neosuchia: Paralligatoridae) from the Upper Cretaceous of Tadzhikistan with a review of braincase osteology in Neosuchia","authors":"Ivan T. Kuzmin ,&nbsp;Ekaterina A. Sichinava ,&nbsp;Evgeniia V. Mazur ,&nbsp;Victor A. Gombolevskiy","doi":"10.1016/j.cretres.2024.105959","DOIUrl":"10.1016/j.cretres.2024.105959","url":null,"abstract":"<div><p>The braincase features appear phylogenetically informative and key in assessing the still contentious relationships within Crocodylomorpha. Yet, the neurocrania of many non-crocodylian taxa are imperfectly studied. In the present paper, we describe the braincase osteology and neuroanatomy of a paralligatorid crocodylomorph <em>Kansajsuchus extensus</em> from the Upper Cretaceous Kansai locality in Tadzhikistan based on CT-scanning, segmentation, and 3D modeling. The detailed comparison of <em>K</em>. <em>extensus</em> with other taxa expands our understanding of the neurocranial anatomy and evolution in Neosuchia. The braincase anatomy appears to be relatively consistent across most non-crocodylian neosuchians, but important changes in its structure are traced through the neosuchian–eusuchian transition and especially at the base of Crocodylia. We question the close affinities of Dyrosauridae and Pholidosauridae based on significant differences in their braincases.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"164 ","pages":"Article 105959"},"PeriodicalIF":1.9,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141714479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lower Campanian calcareous nannofossils: Morphometry and palaeoenvironmental implications of the Aspidolithus group (Rhenodanubian Flysch Zone, Austria) 下震旦纪钙质化石:Aspidolithus群(奥地利Rhenodanubian Flysch区)的形态和古环境意义
IF 1.9 3区 地球科学
Cretaceous Research Pub Date : 2024-07-02 DOI: 10.1016/j.cretres.2024.105954
Paula Granero , Adam Wierzbicki , Michael Wagreich
{"title":"Lower Campanian calcareous nannofossils: Morphometry and palaeoenvironmental implications of the Aspidolithus group (Rhenodanubian Flysch Zone, Austria)","authors":"Paula Granero ,&nbsp;Adam Wierzbicki ,&nbsp;Michael Wagreich","doi":"10.1016/j.cretres.2024.105954","DOIUrl":"https://doi.org/10.1016/j.cretres.2024.105954","url":null,"abstract":"<div><p>Our calcareous nannofossil study focused on eleven samples from the lower Campanian (UC14a–UC14b) of the Loibichl section, located in the Rhenodanubian Flysch Zone of the Austrian Alps. Relative counts of calcareous nannofossil assemblages were followed by a morphometrical analysis on 1021 specimens belonging to the <em>Aspidolithus</em> genus (<em>Aspidolithus enormis</em> and <em>Aspidolithus parcus</em>). For this analysis, a light microscope was utilized to improve our understanding of the taxonomic concepts of this group during a phase of rapid morphological evolution. The analysis included the maximum length (L), the width of the outer rim versus the small diameter of the central area (<em>b</em>/<em>a</em>), and the number of perforations in the central area. The CaCO<sub>3</sub> content and bulk carbonate stable isotope ratios of δ<sup>13</sup>C and δ<sup>18</sup>O were analysed to facilitate stratigraphic and palaeoecological interpretations. Additionally, this study was to determine whether variations in nannofossil morphometrics were driven by changing palaeoenvironmental conditions. This study identified five morphotypes: <em>A. enormis</em> subsp. 1, <em>A. enormis</em> subsp. 2, <em>A. parcus expansus</em>, <em>A. parcus parcus</em>, and <em>A. parcus constrictus</em>. The morphometric analysis substantiated the differentiation between “small” morphotypes (L &lt; 8.5 μm; <em>A. enormis</em>) and the “large” <em>A. parcus</em> group (L &gt; 8.5 μm). However, the results did not show any significant patterns that would justify a natural separation of the “subspecies” within the <em>A. enormis</em> and <em>A. parcus</em> group. Our statistical analysis suggests that these morphometric changes may be related to various palaeoenvironmental proxies. Further high-resolution morphometric analysis is required to verify the impact of contrasting environmental factors on <em>Aspidolithus</em>-size variation.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"163 ","pages":"Article 105954"},"PeriodicalIF":1.9,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0195667124001277/pdfft?md5=0d05faade30d6bbaa43f71ceb4cc2a75&pid=1-s2.0-S0195667124001277-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141594435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New dinoflagellate cyst records from the uppermost part of the Vaca Muerta Formation (uppermost Jurassic) in the Picún Leufú area, Neuquén Basin, Patagonia, Argentina 阿根廷巴塔哥尼亚内乌肯盆地 Picún Leufú 地区瓦卡穆埃尔塔地层(侏罗纪最上层)最上部的甲藻孢囊新记录
IF 1.9 3区 地球科学
Cretaceous Research Pub Date : 2024-07-02 DOI: 10.1016/j.cretres.2024.105956
Luis S. Agüero , Marcelo A. Martínez , Daniela E. Olivera , Rocio D. Villa , Carlos Zavala
{"title":"New dinoflagellate cyst records from the uppermost part of the Vaca Muerta Formation (uppermost Jurassic) in the Picún Leufú area, Neuquén Basin, Patagonia, Argentina","authors":"Luis S. Agüero ,&nbsp;Marcelo A. Martínez ,&nbsp;Daniela E. Olivera ,&nbsp;Rocio D. Villa ,&nbsp;Carlos Zavala","doi":"10.1016/j.cretres.2024.105956","DOIUrl":"10.1016/j.cretres.2024.105956","url":null,"abstract":"<div><p>This contribution presents a new palynological record from the uppermost Vaca Muerta Formation in the Picún Leufú area, Neuquén Basin, Argentina. A 76 m section was measured, and seven mudstone samples from the top of the Vaca Muerta Formation and the base of the Picún Leufú Formation were collected. Seventy-three palynomorph species were recognised and specimens of the dinoflagellate cyst genera <em>Dingodinium</em>, <em>Gochteodinia</em>, <em>Ambonosphaera</em>, <em>Diacanthum</em>, <em>Systematophora</em>, <em>Tubotuberella</em>, <em>Wrevittia</em> and <em>Canningia</em> were described and illustrated. The following taxa are mentioned for the first time: <em>Tubotuberella</em> in the Vaca Muerta Formation; <em>Gochteodinia</em> in Argentina; and <em>Wrevittia</em> in the Jurassic of Argentina. The dinoflagellate cyst content, integrated with previous studies, constrain the top of the Vaca Muerta Formation in the southern part of the basin, to the lower upper Tithonian. This study extends the basal limit of <em>Pseudoceratium notiale</em> to the lower upper Tithonian and <em>Cribroperidinium reticulatum</em> to the Tithonian. From a paleobiogeographic perspective, the presence of <em>Thalassiphora robusta</em> could provide evidence of its migration from the Volga Basin. Besides, taxa shared with the Tithonian of southeast Tanzania could be reflecting the connection between the Neuquén and the Mandawa basins via the Mozambique Corridor. The dinoflagellate cyst content of the uppermost Vaca Muerta Formation shows a relative decrease in previously reported species for this unit approaching the formational contact, alongside an increase in those species previously documented for the Picún Leufú Formation. The distribution of <em>Pseudoceratium notiale</em>, <em>Dichadogonyaulax culmula</em> and <em>Pilosidinium cactosum</em> was extended to the uppermost Vaca Muerta Formation.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"163 ","pages":"Article 105956"},"PeriodicalIF":1.9,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141623650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Palynology of the Albian–Turonian sediments from the Sumbe region, Kwanza Basin (Angola): Implications for paleoenvironment, paleoclimate, and paleogeography 安哥拉宽扎盆地 Sumbe 地区阿尔卑-土伦沉积物的古植物学:对古环境、古气候和古地理的影响
IF 1.9 3区 地球科学
Cretaceous Research Pub Date : 2024-07-01 DOI: 10.1016/j.cretres.2024.105953
Cristina Rodrigues , Márcia Mendes , Zélia Pereira , Pedro Claude Nsungani , Paulo Fernandes , Luís Vítor Duarte , Belarmino Chitangueleca , Lúmen Sebastião , Benedito Aida , Davide Degli Esposti , Domingos Freitas
{"title":"Palynology of the Albian–Turonian sediments from the Sumbe region, Kwanza Basin (Angola): Implications for paleoenvironment, paleoclimate, and paleogeography","authors":"Cristina Rodrigues ,&nbsp;Márcia Mendes ,&nbsp;Zélia Pereira ,&nbsp;Pedro Claude Nsungani ,&nbsp;Paulo Fernandes ,&nbsp;Luís Vítor Duarte ,&nbsp;Belarmino Chitangueleca ,&nbsp;Lúmen Sebastião ,&nbsp;Benedito Aida ,&nbsp;Davide Degli Esposti ,&nbsp;Domingos Freitas","doi":"10.1016/j.cretres.2024.105953","DOIUrl":"10.1016/j.cretres.2024.105953","url":null,"abstract":"<div><p>Palynological investigations in the Sumbe region of the Kwanza Basin, Angola, have identified Albian to Turonian assemblages in four sections of the Quissonde Facies of the Mucanzo, Cabo Ledo, and Itombe formations. These studies aimed to determine their biostratigraphic ages and infer paleoenvironmental, paleoclimatic, and paleogeographic models. The presence of <em>Odontochitina costata, Palaeohystrichophora infusorioides,</em> and <em>Xiphophoridium alatum</em> cysts supports an upper Albian to lower Cenomanian age for the Mucanzo Formation. <em>Litosphaeridium siphoniphorum</em> cyst and the <em>Elateroplicites africaensis</em> pollen found In the Cabo Ledo Formation suggest a Cenomanian age, while <em>Conosphaeridium striatoconum, Heterosphaeridium difficile,</em> and <em>Dinogymnium acuminatum</em> supports a Turonian age for the lower part of the Itombe Formation. All samples predominantly contain fluorescent amorphous organic matter (AOM) derived from phytoplankton degradation, with increasing AOM in the uppermost units, indicating inner neritic marine deposition under dysoxic-anoxic conditions. During the Lower to mid-Cretaceous, the Gondwana breakup caused significant changes, with the palynological indicating a Tethyan affinity with some high-latitude taxa, suggesting a cosmopolitan distribution. The subtropical to tropical nature of the assemblages, along with high-latitude species, indicates a mid-Cretaceous water connection between the Central Atlantic and the South Atlantic oceans, extending to the Kwanza Basin.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"164 ","pages":"Article 105953"},"PeriodicalIF":1.9,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0195667124001265/pdfft?md5=8851dc5510981e4a102d1c2ff7a9ff0c&pid=1-s2.0-S0195667124001265-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141701100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sedimentology and biostratigraphy of the Biancone Limestone Formation of the Tolmin Basin (Southern Alps, NW Slovenia) 托尔明盆地(斯洛文尼亚西北部,南阿尔卑斯山)比安科内石灰岩地层的沉积学和生物地层学
IF 1.9 3区 地球科学
Cretaceous Research Pub Date : 2024-06-29 DOI: 10.1016/j.cretres.2024.105958
Boštjan Rožič , Daniela Reháková
{"title":"Sedimentology and biostratigraphy of the Biancone Limestone Formation of the Tolmin Basin (Southern Alps, NW Slovenia)","authors":"Boštjan Rožič ,&nbsp;Daniela Reháková","doi":"10.1016/j.cretres.2024.105958","DOIUrl":"10.1016/j.cretres.2024.105958","url":null,"abstract":"<div><p>The Tolmin Basin constitutes the western part of the Slovenian Basin, a large Mesozoic interplatform basin that was bounded to the north by the Julian Carbonate Platform and to the south by the Dinaric Carbonate Platform. Today, it is found along the structural boundary between the Southern Alps and the External Dinarides in northwestern Slovenia. After the drowning of the Julian Carbonate Platform, the Tolmin Basin was dominated by pelagic deposits, namely the Toarcian marlstones (Perbla Formation), the Aalenian to lower Tithonian siliceous limestones and radiolarites (Tolmin Formation), and the upper Tithonian to the Berriasian Biancone Limestone Formation. In this study, a basin-scale sedimentary evolution and calpionellid biostratigraphy of the latter is presented. The Biancone Limestone Formation is a calpionellid-bearing pelagic limestone typical of all deepened segments of the Adria microplate in this time interval. It is generally monotonous but shows considerable vertical and lateral variations. The lower boundary with radiolarites is sharp, revealing a pronounced and rapid overturn in pelagic sedimentation. The lower Berriasian slumps indicate a tectonic pulse. Rare beds of resedimented limestones, assigned to the middle Berriasian, are similar in composition to those intercalated in the underlying radiolarites. They thus show that the factors that led to a significant shift in pelagic sedimentation had little or no effect on shallow-marine carbonate production. In the upper Berriasian, an increase in clay content is evident in the formation, which is explained by the uplift and erosion of the propagating thrust belt in the Neotethys area, superimposed by humidification.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"163 ","pages":"Article 105958"},"PeriodicalIF":1.9,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0195667124001319/pdfft?md5=62778eda84f01db4f5b81e61a398b1ae&pid=1-s2.0-S0195667124001319-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141732369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Anagenesis and the tyrant pedigree: A response to “Re-analysis of a dataset refutes claims of anagenesis within Tyrannosaurus-line tyrannosaurines (Theropoda, Tyrannosauridae)” 暴龙的起源和血统:对 "数据集的再分析驳斥了暴龙系暴龙科(兽脚类,暴龙科)内的演替说法 "的回应
IF 1.9 3区 地球科学
Cretaceous Research Pub Date : 2024-06-29 DOI: 10.1016/j.cretres.2024.105957
Elías A. Warshaw , Daniela Barrera Guevara , Denver W. Fowler
{"title":"Anagenesis and the tyrant pedigree: A response to “Re-analysis of a dataset refutes claims of anagenesis within Tyrannosaurus-line tyrannosaurines (Theropoda, Tyrannosauridae)”","authors":"Elías A. Warshaw ,&nbsp;Daniela Barrera Guevara ,&nbsp;Denver W. Fowler","doi":"10.1016/j.cretres.2024.105957","DOIUrl":"https://doi.org/10.1016/j.cretres.2024.105957","url":null,"abstract":"<div><p>Taxonomic diversity in the derived tyrannosaurine <em>Daspletosaurus</em> has been hypothesized to represent a variety of evolutionary patterns by different authors. The recent description of <em>D. wilsoni</em>, the third species of this genus, was proposed to support the paraphyly of <em>Daspletosaurus</em> and participation of its species within a single anagenetic lineage terminating at the base of a clade formed by <em>Tyrannosaurus</em> and other gigantic tyrannosaurines (<em>Tarbosaurus</em>, <em>Zhuchengtyrannus</em>). However, a recent reanalysis including additional data has challenged this interpretation, instead recovering <em>Daspletosaurus</em> as a monophyletic sister group to <em>Tyrannosaurus</em> and its closest relatives, characterized by several cladogenetic events. Here we show that incorporating further data and correcting erroneous interpretations of relevant anatomical features overturns this result. Using a novel phylogenetic analysis including additional specimens, we recover a paraphyletic <em>Daspletosaurus</em>, with species of this genus forming successive sister taxa to <em>Tyrannosaurus</em>-line tyrannosaurines. This result facilitates an interpretation of currently recognized <em>Daspletosaurus</em> species as representing a single anagenetic lineage, in agreement with the stratigraphic distribution of relevant specimens and a qualitative analysis of the range of morphological variation observable within <em>D. wilsoni</em>.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"163 ","pages":"Article 105957"},"PeriodicalIF":1.9,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0195667124001307/pdfft?md5=70ad0024fc60b7cf58da09c57883dda4&pid=1-s2.0-S0195667124001307-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141594434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to “First Edentulous Enantiornithine (Aves: Ornithothoraces) from the Lower Cretaceous Jehol Avifauna” [Cretac Res 159 (2024) 105867] 下白垩世热河鸟类群中的第一种有齿的无齿鸟类(鸟类:Ornithothoraces)》更正 [Cretac Res 159 (2024) 105867]
IF 1.9 3区 地球科学
Cretaceous Research Pub Date : 2024-06-21 DOI: 10.1016/j.cretres.2024.105951
Xiaoli Wang , Alexander D. Clark , Jingmai K. O'Connor , Xiangyu Zhang , Xing Wang , Xiaoting Zheng , Zhonghe Zhou
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引用次数: 0
Late Cretaceous high trochospiral rotaliid foraminifera from Italy 来自意大利的晚白垩世高套螺有孔虫
IF 1.9 3区 地球科学
Cretaceous Research Pub Date : 2024-06-20 DOI: 10.1016/j.cretres.2024.105955
Lorenzo Consorti , Simone Fabbi , Angelo Cipriani , Marco Franceschi , Maurizio Marino
{"title":"Late Cretaceous high trochospiral rotaliid foraminifera from Italy","authors":"Lorenzo Consorti ,&nbsp;Simone Fabbi ,&nbsp;Angelo Cipriani ,&nbsp;Marco Franceschi ,&nbsp;Maurizio Marino","doi":"10.1016/j.cretres.2024.105955","DOIUrl":"https://doi.org/10.1016/j.cretres.2024.105955","url":null,"abstract":"<div><p>High trochospiral architecture is relatively uncommon in rotaliid foraminifera as it is observed in a few species throughout the stratigraphic record of their 100 My history. Such a feature is recorded within the lockhartiniid group, for example in the Paleogene genus <em>Sakesaria</em>, whereas it is not reported from the Cretaceous. We describe two new Late Cretaceous species, <em>Extentaspira pichezziae</em> gen. nov., sp. nov. and <em>Extentaspira pampaloniae</em> sp. nov., displaying high trochospiral test, from the shallow-water facies of the Apennine and Adriatic carbonates platforms of Central and Northeastern Italy. Besides the absence of dimorphism, high trochospiral test architecture suggests an adaptation to an infaunal lifestyle. These occurrences may provide further evidence on the paleo-biogeographic gradient with the nearby Late Cretaceous Pyrenean gulf.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"163 ","pages":"Article 105955"},"PeriodicalIF":1.9,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141541619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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