{"title":"Late Anisian microbe‐metazoan build‐ups in the Germanic Basin: aftermath of the Permian–Triassic crisis","authors":"Yu Pei, J. Duda, J. Schönig, Cui Luo, J. Reitner","doi":"10.1111/let.12442","DOIUrl":"https://doi.org/10.1111/let.12442","url":null,"abstract":"","PeriodicalId":49912,"journal":{"name":"Lethaia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83750024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The functional performance of productidine brachiopods in relation to environmental variables","authors":"Rylan V. Dievert, M. Gingras, L. R. Leighton","doi":"10.1111/LET.12441","DOIUrl":"https://doi.org/10.1111/LET.12441","url":null,"abstract":"","PeriodicalId":49912,"journal":{"name":"Lethaia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85302247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Eurypterid morphology and implications for ecdysis and evolutionary longevity","authors":"D. Brandt","doi":"10.1111/LET.12434","DOIUrl":"https://doi.org/10.1111/LET.12434","url":null,"abstract":"","PeriodicalId":49912,"journal":{"name":"Lethaia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82654633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fábio A. Oliveira, R. M. Santucci, C. E. Oliveira, Marco B. Andrade
{"title":"Morphological and compositional analyses of coprolites from the Upper Cretaceous Bauru Group reveal dietary habits of notosuchian fauna","authors":"Fábio A. Oliveira, R. M. Santucci, C. E. Oliveira, Marco B. Andrade","doi":"10.1111/LET.12431","DOIUrl":"https://doi.org/10.1111/LET.12431","url":null,"abstract":"","PeriodicalId":49912,"journal":{"name":"Lethaia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89618082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Vauxiids as descendants of archaeocyaths: a hypothesis","authors":"Cui Luo, A. Yang, A. Zhuravlev, J. Reitner","doi":"10.1111/LET.12433","DOIUrl":"https://doi.org/10.1111/LET.12433","url":null,"abstract":"","PeriodicalId":49912,"journal":{"name":"Lethaia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86612184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Identification of conodont fossils in pelagic deep‐sea siliceous sedimentary rocks using laboratory‐based X‐ray computed microtomography","authors":"Shun Muto, S. Yagyu, S. Takahashi, M. Murayama","doi":"10.1111/LET.12432","DOIUrl":"https://doi.org/10.1111/LET.12432","url":null,"abstract":"","PeriodicalId":49912,"journal":{"name":"Lethaia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74845516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guichun Wu, Zhansheng Ji, G. Lash, Jian-xin Yao, Shaowen Zhang, Yongxi Li
{"title":"Newly discovered Wuchiapingian to Olenekian conodonts from the Longgar area, southern Lhasa Terrane and their palaeobiogeographical implications","authors":"Guichun Wu, Zhansheng Ji, G. Lash, Jian-xin Yao, Shaowen Zhang, Yongxi Li","doi":"10.1111/LET.12435","DOIUrl":"https://doi.org/10.1111/LET.12435","url":null,"abstract":"","PeriodicalId":49912,"journal":{"name":"Lethaia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78546420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
María L. Fernández Dumont, Maria E. Pereyra, Paula Bona, Sebastián Apesteguía
Notosuchian crocodyliforms represent an intriguing group since they are mainly terrestrial forms and therefore with completely different lifestyles than extant crocodylian, which is reflected in their particular skeletal anatomy. Although there are some inferences in the literature related to the palaeoecology of notosuchian, little is known about their biology (e.g. metabolism, growth dynamics). The palaeohistology allows us to perform interpretations about the growth dynamics and strategies of growth in these extinct forms. Here, we worked on specimens of Araripesuchus Price, 1959 (Notosuchia, Uruguaysuchidae), coming from La Buitrera Palaeontological Area, Río Negro Province (northern Patagonia, Argentina). We described for the first time the osteohistology of this taxon, based on thin sections of the stylopodium shaft (femur and humerus) of four specimens, providing an assumption of its growth dynamics. A general slow growth rate is inferred for Araripesuchus, based on the poorly vascularized parallel-fibred/lamellar bone matrix. An unusual pattern of bone deposition was observed in two specimens; we consider this tissue as evidence of a rapid growth event at some point in the ontogeny of these individuals. Finally, it can be interpreted that in Araripesuchus, sexual maturity could be reached at least between eight to thirteen years old. This study is a first step to provide insight into the life history of these terrestrial notosuchids and to provide new empirical evidence for the osteohistological variability and palaeoecology of this peculiar group of extinct crocodyliforms.
{"title":"New data on the palaeosteohistology and growth dynamic of the notosuchian Araripesuchus Price, 1959","authors":"María L. Fernández Dumont, Maria E. Pereyra, Paula Bona, Sebastián Apesteguía","doi":"10.1111/let.12423","DOIUrl":"10.1111/let.12423","url":null,"abstract":"<p>Notosuchian crocodyliforms represent an intriguing group since they are mainly terrestrial forms and therefore with completely different lifestyles than extant crocodylian, which is reflected in their particular skeletal anatomy. Although there are some inferences in the literature related to the palaeoecology of notosuchian, little is known about their biology (e.g. metabolism, growth dynamics). The palaeohistology allows us to perform interpretations about the growth dynamics and strategies of growth in these extinct forms. Here, we worked on specimens of <i>Araripesuchus</i> Price, 1959 (Notosuchia, Uruguaysuchidae), coming from La Buitrera Palaeontological Area, Río Negro Province (northern Patagonia, Argentina). We described for the first time the osteohistology of this taxon, based on thin sections of the stylopodium shaft (femur and humerus) of four specimens, providing an assumption of its growth dynamics. A general slow growth rate is inferred for <i>Araripesuchus</i>, based on the poorly vascularized parallel-fibred/lamellar bone matrix. An unusual pattern of bone deposition was observed in two specimens; we consider this tissue as evidence of a rapid growth event at some point in the ontogeny of these individuals. Finally, it can be interpreted that in <i>Araripesuchus</i>, sexual maturity could be reached at least between eight to thirteen years old. This study is a first step to provide insight into the life history of these terrestrial notosuchids and to provide new empirical evidence for the osteohistological variability and palaeoecology of this peculiar group of extinct crocodyliforms.</p>","PeriodicalId":49912,"journal":{"name":"Lethaia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/let.12423","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89833701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Predator–prey interactions among Pliocene molluscs from the Tjörnes Peninsula, Iceland; across the trans‐Arctic invasion","authors":"Samuel H. Neely, P. Kelley, Michelle M. Friedman","doi":"10.1111/LET.12426","DOIUrl":"https://doi.org/10.1111/LET.12426","url":null,"abstract":"","PeriodicalId":49912,"journal":{"name":"Lethaia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80218267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Ren, Fanwei Meng, M. Pulsipher, J. Schiffbauer, Jinliang Yuan, Yan Zhao, Ying Guo, Jian Gao, Chao Chang
{"title":"A contiguous record of the SPICE event, sea‐level change and the first appearance of\u0000 Fenghuangella laevis\u0000 in Shandong Province, North China","authors":"G. Ren, Fanwei Meng, M. Pulsipher, J. Schiffbauer, Jinliang Yuan, Yan Zhao, Ying Guo, Jian Gao, Chao Chang","doi":"10.1111/LET.12425","DOIUrl":"https://doi.org/10.1111/LET.12425","url":null,"abstract":"","PeriodicalId":49912,"journal":{"name":"Lethaia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78987335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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