Fossil Record最新文献

The Eocene to Oligocene boundary and paleoclimatic indications based on calcareous nannofossils of Tonasa Formation, South Sulawesi, Indonesia 基于印度尼西亚南苏拉威西岛托纳萨地层钙质化石的始新世到渐新世边界和古气候迹象

IF 1.4 4区地球科学

Fossil Record Pub Date : 2024-06-10 DOI: 10.3897/fr.27.e96985

M. Farida, A. Jaya, Asmita Ahmad, J. Nugraha

{"title":"The Eocene to Oligocene boundary and paleoclimatic indications based on calcareous nannofossils of Tonasa Formation, South Sulawesi, Indonesia","authors":"M. Farida, A. Jaya, Asmita Ahmad, J. Nugraha","doi":"10.3897/fr.27.e96985","DOIUrl":"https://doi.org/10.3897/fr.27.e96985","url":null,"abstract":"The biostratigraphy of the Tonasa Formation in the Jeneponto Regency of South Sulawesi, Indonesia, is still poorly known, and there are barren ages, such as much of the Oligocene to Early Miocene. The Tonasa Formation is well exposed along the coast of the Jeneponto Regency, in which the Karama area consists of the most important outcrops of this formation which in this area consists of interbedded marl and limestone. Our study focuses on the biostratigraphy of the Karama area section A based on nannofossil. Samples were collected by measured stratigraphy methods and then subjected to investigation using smear slides. The assemblages of species were determined by semiquantitative analysis. Data analysis obtained three nannofossil datums (boundaries): The First Occurrence (FO) of Sphenolithus pseudoradians NP19/NP20), the First Occurrence of Sphenolithus distentus (CP.16/CP.17), and the Last Occurrence (LO) Sphenolithus predistentus (NP.23/NP.24. The zonal boundary was determined based on calcareous nannoplankton; the Late Eocene to Middle Oligocene boundary of the Tonasa Formation was found in this section. Interestingly, throughout this period, the marker species in this section is Sphenolithus. In addition, the presence of Sphenolithus, Discoaster, and Zygrhablithus bijugatus indicated that the basin was in warm water condition.","PeriodicalId":55147,"journal":{"name":"Fossil Record","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141365323","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}

引用次数: 0

Roots of the European Cenozoic ecosystems: lizards from the Paleocene (~MP 5) of Walbeck in Germany 欧洲新生代生态系统的根源：德国沃尔贝克古新世（~MP 5）的蜥蜴类

IF 1.4 4区地球科学

Fossil Record Pub Date : 2024-03-21 DOI: 10.3897/fr.27.e109123

A. Čerňanský, D. Vasilyan

{"title":"Roots of the European Cenozoic ecosystems: lizards from the Paleocene (~MP 5) of Walbeck in Germany","authors":"A. Čerňanský, D. Vasilyan","doi":"10.3897/fr.27.e109123","DOIUrl":"https://doi.org/10.3897/fr.27.e109123","url":null,"abstract":"We studied at least part of Kuhnʼs original material of lizards from the Paleocene (~MP 5) of the Walbeck locality in Germany. The collection was considered to be lost but is consistently discussed in the literature due to its importance. We restudied the type material of aff. Parasauromalus paleocenicus and aff. Glyptosaurus walbeckensis described by Kuhn in 1940. The former was originally allocated to Iguania, the latter to Anguimorpha, though later on these identifications were questioned by several authors. We show such a classification of both cannot be upheld. P. paleocenicus resembles the morphology of lacertids showing their presence in Europe already around MP 5. We consider the name P. paleocenicus as a nomen dubium. The material of aff. G. walbeckensis was later suggested to belong to Lacertidae and also considered as a potential amphisbaenian. Although it differs from modern amphisbaenians, it shares features with one supposed polyodontobaenid – Camptognathosaurus parisiensis. The Walbeck form is identical to this species. Since the Walbeck taxon was described in 1940, the principle of priority makes Camptognathosaurus parisiensis a junior synonym of the species erected by Kuhn. We propose a new combined name for this form, Camptognathosaurus walbeckensis comb. nov. The specimen figured by Kuhn is currently lost, thus we designate a neotype from Walbeck. However, this taxon differs significantly from Polyodontobaena and new data doubt the attribution of Camptognathosaurus to Amphisbaenia. This taxon is tentatively assigned here to Lacertidae, as further confirmed by phylogenetic analyses. Material of Scincoidea is also described.","PeriodicalId":55147,"journal":{"name":"Fossil Record","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140223132","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}

引用次数: 0

A phytosaur osteoderm from a late middle Rhaetian bone bed of Bonenburg (North Rhine-Westphalia, Germany): Implications for phytosaur extinction 博能堡（德国北莱茵-威斯特法伦州）中晚期雷特纪骨床中的植食龙骨皮：植食龙灭绝的影响

IF 1.4 4区地球科学

Fossil Record Pub Date : 2024-03-13 DOI: 10.3897/fr.27.e114601

P. M. Sander, Paul W. Wellnitz

引用次数: 0

Another one bites the dust: A new Lithoserix species (Hymenoptera, Ichneumonidae, Pimplinae) from the early Oligocene in France, with an evaluation of wing morphometrics 又一个新物种诞生了：来自法国渐新世早期的一个 Lithoserix 新种（膜翅目，Ichneumonidae，Pimplinae），以及对翅膀形态计量学的评估

IF 1.4 4区地球科学

Fossil Record Pub Date : 2024-02-08 DOI: 10.3897/fr.27.116373

Alexandra Viertler

引用次数: 0

Another one bites the dust: A new Lithoserix species (Hymenoptera, Ichneumonidae, Pimplinae) from the early Oligocene in France, with an evaluation of wing morphometrics 又一个新物种诞生了：来自法国渐新世早期的一个 Lithoserix 新种（膜翅目，Ichneumonidae，Pimplinae），以及对翅膀形态计量学的评估

IF 1.4 4区地球科学

Fossil Record Pub Date : 2024-02-08 DOI: 10.3897/fr.27.116373

Alexandra Viertler

引用次数: 0

A new species of Palaeohypotodus Glückman, 1964 (Chondrichthyes, Lamniformes) from the lower Paleocene (Danian) Porters Creek Formation, Wilcox County, Alabama, USA 来自美国阿拉巴马州威尔科克斯县下古新世（达尼安）波特溪地层的 Palaeohypotodus Glückman, 1964（软骨鱼类，瘤形目）新种

IF 1.4 4区地球科学

Fossil Record Pub Date : 2024-02-07 DOI: 10.3897/fr.27.e112800

Jun A. Ebersole, D. Cicimurri, T. L. Harrell Jr.

引用次数: 0

A new species of Palaeohypotodus Glückman, 1964 (Chondrichthyes, Lamniformes) from the lower Paleocene (Danian) Porters Creek Formation, Wilcox County, Alabama, USA 来自美国阿拉巴马州威尔科克斯县下古新世（达尼安）波特溪地层的 Palaeohypotodus Glückman, 1964（软骨鱼类，瘤形目）新种

IF 1.4 4区地球科学

Fossil Record Pub Date : 2024-02-07 DOI: 10.3897/fr.27.e112800

Jun A. Ebersole, D. Cicimurri, T. L. Harrell Jr.

引用次数: 0

First 3D reconstruction of a forewing of a fossil Orthoptera: Interpreting the venation pattern in the smallest known cricket with a stridulatory apparatus, †Picogryllus carentonensis (Orthoptera, Grylloidea, Oecanthidae) 首次对直翅目化石前翅进行三维重建：解读已知最小的蟋蟀†Picogryllus carentonensis（直翅目，蝼蛄科，蟋蟀科）的脉纹模式

IF 1.4 4区地球科学

Fossil Record Pub Date : 2024-01-29 DOI: 10.3897/fr.27.e113100

Jules Ferreira, Hugo Josse, Lucas Denadai de Campos, André Nel, Laure Desutter-Grandcolas

{"title":"First 3D reconstruction of a forewing of a fossil Orthoptera: Interpreting the venation pattern in the smallest known cricket with a stridulatory apparatus, †Picogryllus carentonensis (Orthoptera, Grylloidea, Oecanthidae)","authors":"Jules Ferreira, Hugo Josse, Lucas Denadai de Campos, André Nel, Laure Desutter-Grandcolas","doi":"10.3897/fr.27.e113100","DOIUrl":"https://doi.org/10.3897/fr.27.e113100","url":null,"abstract":"Fossil insects are valuable indicators of the evolutionary history of the clades to which they belong. According to their state of preservation, fossil insects are often partially described for key morphological characters, such as forewing venation in crickets (Orthoptera, Grylloidea). In parallel, the use of 3D microtomography is increasingly becoming common for studying some fossils, which allowed here the precise reconstruction and interpretation of the venation pattern in the smallest known cricket with a stridulatory apparatus, †Picogryllus carentonensis, found in opaque amber. The 3D reconstructions have revealed the general structure of the venation of the forewing and have enabled the identification of all its veins and cells, validating its similarity with that of extant crickets. Putative homologies are established according to previous studies, and some particularities are observed, such as the presence of two crossveins in the mirror, a rare feature in extant crickets that is discussed in the frame of cricket venation evolution. These findings highlight the importance of 3D microtomography as a powerful tool for examining fossil insects and also provide crucial information for taxonomic identification and evolutionary studies, offering a validated morphological basis for future phylogenetic analyses incorporating fossils.","PeriodicalId":55147,"journal":{"name":"Fossil Record","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140488925","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}

引用次数: 1

Coexistence of Oligocene toothed and baleen-assisted mysticetes in the northwestern Pacific 西北太平洋上新世齿鲸和须鲸共存的现象

IF 1.4 4区地球科学

Fossil Record Pub Date : 2024-01-11 DOI: 10.3897/fr.27.e111567

Cheng‐Hsiu Tsai, T. Kimura, Yoshikazu Hasegawa

引用次数: 0

The new problem of Chinlestegophis and the origin of caecilians (Amphibia, Gymnophionomorpha) is highly sensitive to old problems of sampling and character construction Chinlestegophis和盲鳗（两栖类，Gymnophionomorpha）起源的新问题对取样和特征构建的老问题高度敏感

IF 1.4 4区地球科学

Fossil Record Pub Date : 2024-01-10 DOI: 10.3897/fr.27.e109555

D. Marjanović, Hillary C. Maddin, Jennifer C. Olori, Michel Laurin

{"title":"The new problem of Chinlestegophis and the origin of caecilians (Amphibia, Gymnophionomorpha) is highly sensitive to old problems of sampling and character construction","authors":"D. Marjanović, Hillary C. Maddin, Jennifer C. Olori, Michel Laurin","doi":"10.3897/fr.27.e109555","DOIUrl":"https://doi.org/10.3897/fr.27.e109555","url":null,"abstract":"The description of the small Late Triassic temnospondyl Chinlestegophis ushered in a potentially radically new understanding of the origins of the extant amphibian clades. Together with the fragmentary Rileymillerus, Chinlestegophis was argued to link extant caecilians to Permo-Triassic stereospondyl temnospondyls rather than to frogs and salamanders (and through them to amphibamiform temnospondyls or to brachystelechid and lysorophian “lepospondyls”). We critically review the comparative description of Chinlestegophis and phylogenetic analyses of previous studies. Most of the features previously interpreted to be shared by caecilians, Chinlestegophis and/or other stereospondyls have different distributions than scored in the analysis. We also find no evidence for an incipient tentacular sulcus in Chinlestegophis, and note that its vertebrae, unreduced ribs and dermal shoulder girdle are unlike those of any extant amphibians (nor their likely sister group, Albanerpetidae). Furthermore, the original matrices contain misscores accreted over more than a decade that likewise influence the results. Some features are coded as multiple redundant characters: the double toothrow of Chinlestegophis, other stereospondyls, and caecilians is represented as seven characters. Analysis of the unmodified matrix yields much less resolution than originally reported, and tree topology is altered by a small change to the taxon sample (the addition of Albanerpetidae), limited revisions of irreproducible scores, and ordering the most obviously clinal characters; any one of these changes removes Chinlestegophis from Lissamphibia, and confirms it as a stereospondyl.","PeriodicalId":55147,"journal":{"name":"Fossil Record","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139439553","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}

引用次数: 0