Fossil Studies最新文献

Contributions to the Palaeobiodiversity of Psocodea (‘Psocoptera’) from Lebanese Amber: A Review 对黎巴嫩琥珀中鳞翅目古生物多样性的贡献：综述

Fossil Studies Pub Date : 2024-07-24 DOI: 10.3390/fossils2030008

Marina Hakim, Dany Azar

引用次数: 0

Middle Devonian Actinopterygians from Lithuania and Belarus 来自立陶宛和白俄罗斯的中泥盆纪动口动物

Fossil Studies Pub Date : 2024-07-12 DOI: 10.3390/fossils2030007

Darja Dankina, Joanas Šečkus, D. P. Plax

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The Wasps (Hymenoptera) from Lower Cretaceous Lebanese and Spanish Ambers 下白垩世黎巴嫩和西班牙安珀中的黄蜂（膜翅目

Fossil Studies Pub Date : 2024-06-05 DOI: 10.3390/fossils2020005

Sergio Álvarez-Parra, Dany Azar

{"title":"The Wasps (Hymenoptera) from Lower Cretaceous Lebanese and Spanish Ambers","authors":"Sergio Álvarez-Parra, Dany Azar","doi":"10.3390/fossils2020005","DOIUrl":"https://doi.org/10.3390/fossils2020005","url":null,"abstract":"Hymenoptera is the fourth-most diverse insect order today, including wasps, bees, bumblebees, and ants. They show a wide panoply of modes of life, such as herbivory, predation, parasitoidism, pollination, and eusociality. This group also includes a great number of extinct species from both amber and compression outcrops. Hymenopterans probably originated in the Paleozoic, although their oldest record is from the Middle or Late Triassic, and their diversity expanded since the Cretaceous. Here, we present a review of the Hymenoptera in Lower Cretaceous ambers from Lebanon (Barremian) and Spain (Albian), which is pivotal for the study of hymenopteran evolution. Hymenoptera in Lebanese ambers are represented by 32 species in 22 genera within 15 families, while in Spanish ambers, they correspond to 49 species in 40 genera within 18 families. Most of these species belong to the ‘Parasitica’, and only a few species have been assigned to the Aculeata. The group ‘Symphyta’ is represented by one species in Spanish amber. The paleobiogeography and possible paleobiologies of the species in these ambers are reviewed. Furthermore, checklists for all Hymenoptera species in Lebanese and Spanish ambers are provided.","PeriodicalId":507839,"journal":{"name":"Fossil Studies","volume":"46 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141383174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Life and Death of Jamoytius kerwoodi White; A Silurian Jawless Nektonic Herbivore? Jamoytius kerwoodi White 的生与死；一种志留纪无下颚的近口食草动物？

Fossil Studies Pub Date : 2024-04-09 DOI: 10.3390/fossils2020003

Michael E. Brookfield

引用次数: 0

The Diet of Metriorhynchus (Thalattosuchia, Metriorhynchidae): Additional Discoveries and Paleoecological Implications Metriorhynchus (Thalattosuchia, Metriorhynchidae) 的饮食：新发现和古生态学意义

Fossil Studies Pub Date : 2024-02-20 DOI: 10.3390/fossils2010002

Stéphane Hua, Jeff Liston, Jérôme Tabouelle

引用次数: 0

Taxonomic Status of Nanotyrannus lancensis (Dinosauria: Tyrannosauroidea)—A Distinct Taxon of Small-Bodied Tyrannosaur Nanotyrannus lancensis（恐龙亚目：暴龙科）的分类地位--小体型暴龙的一个独特类群

Fossil Studies Pub Date : 2024-01-03 DOI: 10.3390/fossils2010001

N. Longrich, E. Saitta

{"title":"Taxonomic Status of Nanotyrannus lancensis (Dinosauria: Tyrannosauroidea)—A Distinct Taxon of Small-Bodied Tyrannosaur","authors":"N. Longrich, E. Saitta","doi":"10.3390/fossils2010001","DOIUrl":"https://doi.org/10.3390/fossils2010001","url":null,"abstract":"Tyrannosaurs are among the most intensively studied and best-known dinosaurs. Despite this, their relationships and systematics are highly controversial. An ongoing debate concerns the validity of Nanotyrannus lancensis, interpreted either as a distinct genus of small-bodied tyrannosaur or a juvenile of Tyrannosaurus rex. We examine multiple lines of evidence and show that the evidence strongly supports recognition of Nanotyrannus as a distinct species for the following reasons: 1. High diversity of tyrannosaurs and predatory dinosaurs supports the idea that multiple tyrannosaurids inhabited the late Maastrichtian of Laramidia; 2. Nanotyrannus lacks characters supporting referral to Tyrannosaurus or Tyrannosaurinae but differs from T. rex in >150 morphological characters, while intermediate forms combining the features of Nanotyrannus and T. rex are unknown; 3. Histology shows specimens of Nanotyrannus showing (i) skeletal fusions, (ii) mature skull bone textures, (iii) slow growth rates relative to T. rex, (iv) decelerating growth in their final years of life, and (v) growth curves predicting adult masses of ~1500 kg or less, showing these animals are subadults and young adults, not juvenile Tyrannosaurus; 4. growth series of other tyrannosaurids, including Tarbosaurus and Gorgosaurus, do not show morphological changes proposed for a Nanotyrannus–Tyrannosaurus growth series, and deriving Tyrannosaurus from Nanotyrannus requires several changes inconsistent with known patterns of dinosaur development; 5. Juvenile T. rex exist, showing diagnostic features of Tyrannosaurus; 6. Phylogenetic analysis suggests that Nanotyrannus may lie outside Tyrannosauridae. Tyrannosaur diversity before the K-Pg extinction is higher than previously appreciated. The challenges inherent in diagnosing species based on fossils mean paleontologists may be systematically underestimating the diversity of ancient ecosystems.","PeriodicalId":507839,"journal":{"name":"Fossil Studies","volume":"119 39","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139387806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Minor Title Change: Fossils Becomes Fossil Studies 小标题更改：化石》改为《化石研究

Fossil Studies Pub Date : 2023-12-20 DOI: 10.3390/fossils1010008

Eric Buffetaut

引用次数: 0