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Acta Palaeontologica Polonica最新文献

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Triassic coleoid beaks and other structures from the Calcareous Alps revisited 从钙质阿尔卑斯山脉重新考察了三叠纪coleoid喙和其他结构
IF 1.8 3区 地球科学
Acta Palaeontologica Polonica Pub Date : 2022-01-01 DOI: 10.4202/app.00953.2021
L. Doguzhaeva, H. Summesberger, F. Brandstaetter, D. Gruber, Лариса Догужаева, A. Tintori
{"title":"Triassic coleoid beaks and other structures \u0000from the Calcareous Alps revisited","authors":"L. Doguzhaeva, H. Summesberger, F. Brandstaetter, D. Gruber, Лариса Догужаева, A. Tintori","doi":"10.4202/app.00953.2021","DOIUrl":"https://doi.org/10.4202/app.00953.2021","url":null,"abstract":"A. 2022. Triassic coleoid beaks and other structures from the Calcareous Alps. Acta Palaeontologica Polonica 67 (X): xxx–xxx. We performed comprehensive study of seven Carnian, Late Triassic specimens of a coleoid cephalopod Phragmoteuthis bisinuata , on which Suess based his hypothesis on “beaks of P. bisinuata ”. Using SEM/EDS, we found that “beaks of P. bisinuata ” consist of a micro-granular carbonized matrix containing ~4–30 μm diameter and ~50–200 μm visible length, dense calcified bone-like micro-structures. This strongly suggests that these objects are vertebrate bone-inducing cartilages in which the matrix was post-mortem reworked by carbon-accumulating bacteria and substituted by nano-particles of carbon accumulated in micro-granules. Hence, the presumed “beaks of P. bisinuata ” are cartilaginous remains of a prey, presum-ably juvenile fish. This data dismissed the entire hypothesis of Seuss. A small spatula-shape plate with a rachis-like process in an association with 10 or so imprints around (arm crown), found in front of a proostracum of P. bisinuata evidences an unknown Late Triassic juvenile teuthid which possessed a gladius resembling that of the early Permian Glochinomorpha stifeli. It inhabited the open sea area of the northwestern Tethys Ocean, and was, along with juvenile fishes, in the diet of P. bisinuata . The first identified Anisian (Middle Triassic) coleoid beak is represented by an isolated specimen from the Gardena Valley, NE Italy. It has a typical composition and morphology of coleoid upper beak: chitinous, wide-oval lateral walls, short wings, and pointed hook-like rostrum. This suggests similar upper beak structure in the Carnian P. bisinuata in which the lower beaks were apparently similar to that of the co-occurring Lunzoteuthis schindelbergensis and had a widely open outer lamella with posteriorly elongated paired wings joined into a pointed rostrum in the anterior portion.","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480023","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: 2
New Upper Cretaceous Microvertebrate Assemblage from the Williams Fork Formation, northwestern Colorado, U.S.A., and its Paleoenvironmental Implications 美国科罗拉多州西北部威廉姆斯福克组新上白垩世微脊椎动物组合及其古环境意义
IF 1.8 3区 地球科学
Acta Palaeontologica Polonica Pub Date : 2022-01-01 DOI: 10.4202/app.00934.2021
N. Brand, Andy Heckert, Israel M. Sánchez, J. Foster, R. Hunt-Foster, J. Eberle
{"title":"New Upper Cretaceous Microvertebrate Assemblage from the Williams Fork Formation, northwestern Colorado, U.S.A., and its Paleoenvironmental Implications","authors":"N. Brand, Andy Heckert, Israel M. Sánchez, J. Foster, R. Hunt-Foster, J. Eberle","doi":"10.4202/app.00934.2021","DOIUrl":"https://doi.org/10.4202/app.00934.2021","url":null,"abstract":"","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480046","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
A new needle stonefly with parasitic mites from the Eocene Baltic amber 始新世波罗的海琥珀中一种带寄生螨的新针石蝇
IF 1.8 3区 地球科学
Acta Palaeontologica Polonica Pub Date : 2022-01-01 DOI: 10.4202/app.00984.2022
Zhi-Teng Chen, Hong-Ling Liu
{"title":"A new needle stonefly with parasitic mites from the Eocene Baltic amber","authors":"Zhi-Teng Chen, Hong-Ling Liu","doi":"10.4202/app.00984.2022","DOIUrl":"https://doi.org/10.4202/app.00984.2022","url":null,"abstract":"Baltileuctra dewalti Chen sp. nov., a new extinct species of needle stoneflies (Leuctridae, Plecoptera), is described and illustrated from the Eocene Baltic amber and compared to the other leuctrids. Baltileuctra dewalti Chen sp. nov. differs from both extant and extinct representatives of Leuctridae by a combination of morphological characters including wing venation, unique terminalia structures, and cercal modification. The most distinguishable character for the new taxon is the presence of two dentate long spines lateral to a well-developed subanal probe. Several parasitic mites are also found on the new stonefly. This is the earliest known fossil evidence for mite parasitism in Plecoptera. This study examines a well-preserved piece of Eocene Baltic amber and discovers a new needle stonefly as the second known species of Baltileuctra which is parasitized by mites. New infor-mation is provided for Baltileuctra foraminis Chen, 2018a, and Euroleuctra gillesi Chen, 2018b, for morphological comparison.","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480598","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
A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK 来自英国牛津郡牛津粘土组的一种新的上龙
IF 1.8 3区 地球科学
Acta Palaeontologica Polonica Pub Date : 2022-01-01 DOI: 10.4202/app.00887.2021
H. Ketchum, R. Benson
{"title":"A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK","authors":"H. Ketchum, R. Benson","doi":"10.4202/app.00887.2021","DOIUrl":"https://doi.org/10.4202/app.00887.2021","url":null,"abstract":"We describe the anatomy of a new longirostrine pliosaurid, Eardasaurus powelli gen. et sp. nov., based on a substantially complete skeleton from the Middle Jurassic Oxford Clay Formation of Oxfordshire, UK. The specimen brings the number of pliosaurid genera known from the Oxford Clay Formation up to a minimum of six, contributing to our understanding of the most taxonomically rich pliosaurid assemblage. The teeth of Eardasaurus powelli gen. et sp. nov. have “carina-like” apicobasal enamel ridges, previously only identified in Liopleurodon ferox among Middle Jurassic pliosaurids, and which may be more widespread among early pliosaurids than has been recognised. Our phylogenetic analysis shows that Eardasaurus powelli gen. et sp. nov. is nested within Middle Jurassic thalassophonean pliosaurids, slightly more derived than Peloneustes philarchus , as sister to a group comprising “ Pliosaurus ” andrewsi , Simolestes vorax , Liopleurodon ferox , Pliosaurus spp. and brachauchenines.","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70478742","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: 3
Second specimen of Corriebaatar marywaltersae from the Lower Cretaceous of Australia confirms its multituberculate affinities 来自澳大利亚下白垩纪的第二个Corriebaatar marywaltersae标本证实了它的多结核亲缘关系
IF 1.8 3区 地球科学
Acta Palaeontologica Polonica Pub Date : 2022-01-01 DOI: 10.4202/app.00924.2021
T. Rich, P. Trusler, L. Kool, Matt A. White, J. Bevitt, S. Morton, Patricia Vickers−Rich
{"title":"Second specimen of Corriebaatar marywaltersae from the Lower Cretaceous of Australia confirms its multituberculate affinities","authors":"T. Rich, P. Trusler, L. Kool, Matt A. White, J. Bevitt, S. Morton, Patricia Vickers−Rich","doi":"10.4202/app.00924.2021","DOIUrl":"https://doi.org/10.4202/app.00924.2021","url":null,"abstract":"A second specimen of the Australian cimolodontan multituberculate Corriebaatar marywaltersae from the same locality (Flat Rocks) as the holotype and previously only known specimen, reveals far more anatomical information about the species. The new specimen, composed of most of a dentary containing a complete p4 and alveoli for the lower incisor and the lower first and second molars, exhibits a suite of features consistent with allocation of Corriebaatar to Cimolodonta and further confirms the presence of multituberculates on Gondwana during the Mesozoic. The revised (older) age of the Flat Rocks locality to latest Barremian (mid-Early Cretaceous) establishes C. marywaltersae as the oldest currently known cimolodontan. This has profound biogeographic implications for the distribution of multituberculates on Gondwana as well as globally, particularly in light of the fact that Corriebaatar appears to be a relatively derived member of Cimolodonta.","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70479695","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
Echinoderm model systems, homology, and phylogenetic inference: comment and reply to Paul (2021) 棘皮动物模型系统、同源性和系统发育推断:评论和回复Paul (2021)
IF 1.8 3区 地球科学
Acta Palaeontologica Polonica Pub Date : 2022-01-01 DOI: 10.4202/app.00956.2021
J. Bauer, Sarah L. Sheffield, J. Waters, C. Sumrall
{"title":"Echinoderm model systems, homology, and phylogenetic inference: comment and reply to Paul (2021)","authors":"J. Bauer, Sarah L. Sheffield, J. Waters, C. Sumrall","doi":"10.4202/app.00956.2021","DOIUrl":"https://doi.org/10.4202/app.00956.2021","url":null,"abstract":"Understanding the phylogenetic relationship among derived blastozoans has been a goal of researchers since phylogenetic methodologies were first applied to Paleozoic echinoderms. Paul (2021) proposed a new “pan-dichoporites” group to circumscribe early Paleozoic blastozoans. Unfortunately, this work includes many inaccuracies, non-reproducible analyses, and nonstandard method choices that confuse rather than advance the understanding of echinoderm paleobiology. Herein, we focus on key aspects of philosophy, methodology, and data reproducibility the publication of Paul (2021) raises that need to be addressed and considered by echinoderm researchers as they assess the concept of pan-dichoporite echinoderms.","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480117","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: 2
A new genus of chemosymbiotic vesicomyid bivalves from the Oligocene of western North America. 北美西部渐新世趋化共生双壳类一新属。
IF 1.8 3区 地球科学
Acta Palaeontologica Polonica Pub Date : 2022-01-01 DOI: 10.4202/app.00992.2022
Frida Hybertsen, S. Kiel, J. Goedert
{"title":"A new genus of chemosymbiotic vesicomyid bivalves from the Oligocene of western North America.","authors":"Frida Hybertsen, S. Kiel, J. Goedert","doi":"10.4202/app.00992.2022","DOIUrl":"https://doi.org/10.4202/app.00992.2022","url":null,"abstract":"A new genus of chemosymbiotic vesicomyid bivalve from the Oligocene of western North Palaeontologica 67 (X): xxx–xxx. We describe a new genus of the chemosymbiotic bivalve family Vesicomyidae, Squiresica , for two Oligocene species, previously assigned to Archivesica , from western North America. Squiresica is characterized by a small and weakly inflated shell, a small to nearly absent pallial sinus, an Archivesica -like hinge dentition, with an indistinct to well incised lunular incision. Two species are assigned to this new genus: the type species, S. knapptonensis from western Washington State, USA, and S. marincovichi from Oligocene strata of Alaska, USA. Squiresica knapptonensis had previously been described from the upper Oligocene of the Lincoln Creek Formation; further specimens are here reported from a newly discovered seep deposit in the lower Oligocene part of the Lincoln Creek Formation.","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480258","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
Molar Morphology and Occlusion of the Early Jurassic Mammaliaform Erythrotherium parringtoni 早侏罗世哺乳动物parringtonred therium的臼齿形态与咬合
IF 1.8 3区 地球科学
Acta Palaeontologica Polonica Pub Date : 2022-01-01 DOI: 10.4202/app.00998.2022
K. Jäger, P. Gill, T. Martin, Ian J. Corfe
{"title":"Molar Morphology and Occlusion of the Early Jurassic Mammaliaform Erythrotherium parringtoni","authors":"K. Jäger, P. Gill, T. Martin, Ian J. Corfe","doi":"10.4202/app.00998.2022","DOIUrl":"https://doi.org/10.4202/app.00998.2022","url":null,"abstract":",","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480364","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
New craniodental information and taxonomic decisions of the typotherians (Notoungulata) from the late Oligocene of Mendoza, central-western Argentina 阿根廷中西部门多萨晚渐新世typtherians (Notoungulata)的新颅齿信息和分类决定
IF 1.8 3区 地球科学
Acta Palaeontologica Polonica Pub Date : 2022-01-01 DOI: 10.4202/app.00974.2022
Santiago Hernández Del Pino, F. Seoane, E. Cerdeño
{"title":"New craniodental information and taxonomic decisions of the typotherians (Notoungulata) from the late Oligocene of Mendoza, central-western Argentina","authors":"Santiago Hernández Del Pino, F. Seoane, E. Cerdeño","doi":"10.4202/app.00974.2022","DOIUrl":"https://doi.org/10.4202/app.00974.2022","url":null,"abstract":"","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480525","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
A Lujiatun-like dinosaurian assemblage from the Jehol Biota of Ningcheng, Inner Mongolia, Northeast China 内蒙古宁城热河生物群陆家屯类恐龙群
IF 1.8 3区 地球科学
Acta Palaeontologica Polonica Pub Date : 2022-01-01 DOI: 10.4202/app.00975.2022
Honggang Zhang, Dongxiang Yu, Yuhui Feng, R. Pei, Chang-Fu Zhou
{"title":"A Lujiatun-like dinosaurian assemblage from the Jehol Biota of Ningcheng, Inner Mongolia, Northeast China","authors":"Honggang Zhang, Dongxiang Yu, Yuhui Feng, R. Pei, Chang-Fu Zhou","doi":"10.4202/app.00975.2022","DOIUrl":"https://doi.org/10.4202/app.00975.2022","url":null,"abstract":"The Lujiatun Unit of the Yixian Formation yields the only three-dimensionally preserved fossils from the Early Cretaceous Jehol Biota and crops out only in western Liaoning. Here, we report a new fossil site for the Jehol Biota with three-dimensionally preserved fossils from Ningcheng, Inner Mongolia. The fossils that have been discovered at this new site are predominantly dinosaurs and include a Sinovenator-like troodontid skeleton, three isolated sauropod teeth, some disarticulated skeletons of neornithischians and ceratopsians, and fragmentary lower jaws from a lizard and a mammal. The faunal composition, as well as the lithological features of the fossil beds, are comparable with those of the Lujiatun Unit of the Yixian Formation at Beipiao, western Liaoning, China. This discovery expands the geographical range of the Lujiatun-like dinosaurian assemblage of the Jehol Biota, and increases the biodiversity of the Jehol Biota in the Ningcheng Basin, China.","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480538","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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