Scientific Reports - A regurgitalite reveals a new filter-feeding pterosaur from the Santana Group

The Carboniferous-Permian is a key period concerning the emergence and diversification of major tetrapod clades such as amphibians and amniotes. This is particularly the case of the Seymouriamorpha Wa...

The Bajo de la Carpa Formation (Santonian, Late Cretaceous) of the Neuquén Basin, Argentina, represents a critical stratigraphic interval for understanding the evolution and diversity of South America...

Despite the extensive fossil mollusk records in Taiwan, over 99% are marine species. Among the few freshwater deposits, the Tananwan Formation (1.46-1.24 Ma) in northern Taiwan has been recognized as ...

ABSTRACT: Additional historical data regarding the original finding and excavation (circa 1958-1959) of the Miragaia longicollum stegosaur MG 4863 has been identified (including field notes and the complete field map), allowing a better understanding of its stratigraphic context. Additionally, osteological material that was previously partially encased in matrix was fully prepared and restored, including anterior and posterior caudal vertebrae, metacarpals, and five semi-complete dorsal vertebrae (the latter being the most significant addition, as these are the only skeletal elements shared by all type specimens of dacentrurine taxa). New anatomical information from these additional elements provides further evidence that M. longicollum is distinct from the closely related Late Jurassic stegosaur Dacentrurus armatus from England (demonstrated mainly by various caudal differences). The newly prepared material further completes what was already the best reference specimen among the Dacentrurinae clade, as well as Stegosauria in Europe during the Late Jurassic, increasing its value to better understand these contexts in future studies.

Mesozoic dinosaurs and Cenozoic mammals are often regarded as broadly ecologically equivalent, as they included the majority of medium-to-large-bodied terrestrial vertebrates of their respective eras....

Emucaridids are small, non-biomineralised, nektaspid trilobitomorph arthropods so far only known for the Cambrian. Their bodies are made up of a cepha…

Azhdarchidae is a clade of pterosaurs which includes the largest-ever flying animals. The evolutionary history of this clade and its closest relatives remains incompletely understood and highly deb...

Phytosaurs, crocodile-like archosaurs from the Late Triassic, are known for their unique skull shape, whereas their mandibles are poorly studied. Two-dimensional (2D) geometric morphometric (GM) anal...

Abelisauridae is the most abundant and well-known clade of Gondwanan theropods, characterized by uniquely tall, robust and heavily ornamented skulls. Different processes have been proposed to explain ...

Biological sciences; Evolutionary biology; Paleobiology

Bone microanatomy provides critical information about the biomechanical strategies employed by vertebrates to sustain large body sizes. Yet, direct co…

Teleosauroids are poorly known from Southeast Asia, with limited records from the Indochina Terrane of Thailand. To better understand their distributi…

Fernández et al. (2025) favoured the previous chronological hypothesis of an early Eocene age for the Itaboraí Basin, Brazil, based on the isotopic dating of the ankaramite (~54.89 Ma) and a single...

The Los Colorados Formation (Upper Triassic, Norian) is characterised by its extensive tetrapod fossil record, especially of archosaurs. As part of this record, Aetosauria (Late Triassic pseudosuch...

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We describe two new pliosaurid specimens from upper Aptian beds near Villa de Leyva, Boyacá, Colombia. Morphological analysis reveals they represent a new brachaucheniine genus and species, Boyacas...