Carinthiasuchus, new poposauroid from Triassic of Austria + archosauromorph extraoral tissues (labial scales) (free pdfs)
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Ben Creisler
Jun 8, 2026, 11:42:06 AM (yesterday) Jun 8
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Ben Creisler
New papers:
Free pdf:
Carinthiasuchus kandutschi gen. et sp. nov.
Fabio Marco Dalla Vecchia & Andrea Cau (2026)
Carinthiasuchus kandutschi, a new archosaur (Reptilia: Diapsida) from the Triassic of Austria
Rivista Italiana di Paleontologia e Stratigrafia 132(2): 409-430
DOI: https://doi.org/10.54103/2039-4942/29890
https://riviste.unimi.it/index.php/RIPS/article/view/29890
Free pdf:
https://riviste.unimi.it/index.php/RIPS/article/view/29890/26527
A partial skeleton of a small reptile with a distinctive maxilla, dentition, caudal vertebrae and osteoderms from the marine Partnach Formation (Ladinian-earliest Carnian) near Jadersdorf (Gitschtal, Hermagor) in the Gailtal Alps of Carinthia (Austria), represents a new archosaur taxon Carinthiasuchus kandutschi gen. n. sp. n.. It is diagnosed by autapomorphies in the anterior process and subnarial foramen of the maxilla, accessory articular processes in the neural arches of mid-distal caudal vertebrae, and shape and arrangement of the caudal osteoderms. It also shows a unique combination of features regarding the extent of the antorbital fossa in the maxilla and the morphology of its ventral edge, dentary shape, dentition, caudal vertebrae elongation and morphology. A segment of 16 mid-distal caudal vertebrae is one of the better articulated tail segments ever found in Triassic archosaurs, showing the arrangement of the dorsal osteoderms and the presence of accessory processes in the neural arches stiffening the posterior termination of the tail. Phylogenetic analysis recovered Carinthiasuchus kandutschi as a pseudosuchian in a basal position within the Poposauroidea. Absence of swimming adaptation in the tail and the presence of terrestrial plant remains in the same outcrop suggest terrestrial habits for this archosaur reptile.
https://riviste.unimi.it/index.php/RIPS/article/view/29890/26527
A partial skeleton of a small reptile with a distinctive maxilla, dentition, caudal vertebrae and osteoderms from the marine Partnach Formation (Ladinian-earliest Carnian) near Jadersdorf (Gitschtal, Hermagor) in the Gailtal Alps of Carinthia (Austria), represents a new archosaur taxon Carinthiasuchus kandutschi gen. n. sp. n.. It is diagnosed by autapomorphies in the anterior process and subnarial foramen of the maxilla, accessory articular processes in the neural arches of mid-distal caudal vertebrae, and shape and arrangement of the caudal osteoderms. It also shows a unique combination of features regarding the extent of the antorbital fossa in the maxilla and the morphology of its ventral edge, dentary shape, dentition, caudal vertebrae elongation and morphology. A segment of 16 mid-distal caudal vertebrae is one of the better articulated tail segments ever found in Triassic archosaurs, showing the arrangement of the dorsal osteoderms and the presence of accessory processes in the neural arches stiffening the posterior termination of the tail. Phylogenetic analysis recovered Carinthiasuchus kandutschi as a pseudosuchian in a basal position within the Poposauroidea. Absence of swimming adaptation in the tail and the presence of terrestrial plant remains in the same outcrop suggest terrestrial habits for this archosaur reptile.
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Free pdf:
Rafael Terras, Jaqueline Borger, Manuelle O. P. Almeida, Silvia Bettin, Owen A. Higgins, Giulia Marciani, Stefano Benazzi, Rodrigo T. Müller, Leonardo Kerber & Mirian Carbonera (2026)
Inferred presence of extraoral tissues in Triassic archosauromorphs and the evolutionary implications for the clade Sauropsida
Palaeontology 69(3): e70066
doi: https://doi.org/10.1111/pala.70066
https://onlinelibrary.wiley.com/doi/10.1111/pala.70066
Recent work has suggested that the presence of extraoral soft tissues (‘lips’), in the form of labial scales in theropod dinosaurs, could be inferred based on: anteroposteriorly distributed foramina in the rostral bones, similar to extant lepidosaurs; vertically projected teeth; uniform enamel thickness in maxillary teeth; and an allometric relation between skull length and maxillary crown height. Here, we review the current state of knowledge on the presence of lips in saurischian dinosaurs and further contribute to the debate by inferring and discussing their presence in Triassic archosauromorphs, particularly those from southern Brazil, using the same methodological approach. Our results support the hypothesis that the lipped condition represents the plesiomorphic state in Sauropsida. Non-theropod Triassic saurischians and pseudosuchians exhibit a foraminal distribution similar to that of theropods and extant lepidosaurs. Histological thin sections reveal a uniform enamel thickness on both labial and lingual sides of functional and shed tooth crowns, and the dentine shows no evidence of wear, contrasting with the condition in crocodilian teeth. Additionally, our regression analysis supports an allometric trend in which increased skull length correlates with increased maxillary crown height in Theropoda, Sauropodomorpha, Herrerasauria and Pseudosuchia. We also infer and discuss the presence of a mandibular gap in Prestosuchus, as well as the occurrence of lips in specialized taxa from the clades Theropoda, Ornithosuchidae, Phytosauria and Proterosuchidae, based on convergent rostral features shared with extant lepidosaurs and actinopterygians. Furthermore, we examine the presence of both rhamphotheca and labial scales across the clades Silesauridae, Lagerpetidae and Rhynchosauria.
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