Results 31 to 40 of about 172 (104)

Review of osteoderm function and future research directions

open access: yesJournal of Zoology, Volume 325, Issue 1, Page 1-24, January 2025.
Osteoderms are bone plates in the skin that occur in virtually all major tetrapod clades. Much has been speculated about their function, but many questions remain unanswered. This review provides an overview of the current state of knowledge and future research directions in this field.
R. Ebel   +3 more
wiley   +1 more source

Pelvic girdle morphology in Stagonolepis, with remarks on aetosaur systematics

open access: yes, 2022
In recent years, the Upper Triassic deposits at Krasiejów (south-west Poland) have yielded several tetrapod taxa, both aquatic and terrestrial. Stagonolepis olenkae is one of the terrestrial vertebrates recovered there; a quadrupedal, armoured aetosaur ...
Antczak, Mateusz   +2 more
core   +1 more source

Olkasuchus walasto , a new taxon of Aetosauria (Archosauria; Pseudosuchia) from the Los Colorados Formation (Upper Triassic), Argentina

open access: yesHistorical Biology
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 pseudosuchians characterised by the presence of dorsal, ventral and appendicular osteoderms) is represented only by Neoaetosauroides engaeus.
Juan C. Sotomayor   +5 more
openaire   +2 more sources

Palaeobiological inferences of the aetosaur Aetosauroides scagliai (Archosauria: Pseudosuchia) based on microstructural analyses of its appendicular bones

open access: yes, 2022
Aetosaurs were a group of armoured pseudosuchians, recorded in most of the Upper Triassic continental deposits worldwide. Several osteohistological contributions of aetosaurs focused on their osteoderms, but rarely on appendicular bones. Here, we analyse
Ponce, Denis Alejandro   +2 more
core   +1 more source

Reinterpretation of the holotype of Malerisaurus langstoni, a diapsid reptile from the Upper Triassic Chinle Group of West Texas [PDF]

open access: yes, 2006
The holotype of Malerisaurus langstoni from the Late Triassic (Otischalkian) Trilophosaurus quarry 2 of West Texas is a chimera. The holotype represents at least 6-7 individuals of four reptilian groups: Trilophosauridae, Rhynchosauridae, Parasuchidae ...
NC DOCKS at Appalachian State University   +1 more
core  

The first braincase of the basal aetosaur Aetosauroides scagliai (Archosauria: Pseudosuchia) from the Upper Triassic of Brazil

open access: yes, 2021
The phylogenetic relationships of Pseudosuchia, the crocodile-line of Archosauria, are still poorly resolved, in part, due to the lack of crucial braincase information for several key taxa.
Schultz, Cesar   +5 more
core   +1 more source

X-Ray Computed Tomographic Reconstruction And Bone Histology Of The Aetosaur Coahomasuchus Chathamensis (Archosauria: Stagonolepididae) From The Upper Triassic Pekin Formation, Deep River Basin, North Carolina And A Re-Analysis Of Its Phylogenetic Relationships [PDF]

open access: yes, 2017
Aetosauria is a clade of armored, quadrupedal archosaurian omnivores to herbivores known from Upper Triassic units globally. However, there remains debate about their: intra-clade relationships, internal skeletal structure, and patterns of growth.
Hoffman, Devin Kane Fodor   +1 more
core  

Osteoderms of juveniles of Stagonolepis (Archosauria: Aetosauria) from the lower Chinle Group, east-central Arizona [PDF]

open access: yes, 2008
We describe for the first time small «25 mm) dorsal paramedian, lateral, and appendicular /ventral scutes (osteoderms) of aetosaurs from the Blue Hills in Apache County, east-central Arizona. These diminutive scutes, collected by c.L.
NC DOCKS at Appalachian State University   +1 more
core  

Bone Histology of Phytosaur, Aetosaur, and Other Archosauriform Osteoderms (Eureptilia, Archosauromorpha) [PDF]

open access: yes, 2014
As in other archosauriforms, phytosaurs and aetosaurs are characterized by the presence of well-developed osteoderms. Here we provide a comparative study on the microstructure of phytosaur (five taxa) and aetosaur (thirteen taxa) osteoderms. For outgroup
Scheyer, T M   +8 more
core   +1 more source

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