Results 51 to 60 of about 446 (130)
, 2018 Constraint is a universal feature of morphological evolution. The vertebral column of synapsids (mammals and their close relatives) is a classic example of this phenotypic restriction, with greatly reduced variation in the number of vertebrae compared to
Griffin, Christopher T. +3 more
core +1 more source
DICYNODONT JAW MECHANISMS RECONSIDERED: THE KANNEMEYERIA (ANOMODONTIA THERAPSIDA) MASTICATORY CYCLE
Publicación Electrónica de la Asociación Paleontológica Argentina, 2015 The unique feature of the dicynodont masticatory apparatus is the double-convex jaw articulation, which permitted free antero-posterior movement. Since Crompton and Hotton's demonstration of the jaw articulation, most subsequent work has argued either ...
Alain J. Renaut
doaj
The Anatomical Record, Volume 307, Issue 12, Page 3717-3781, December 2024.Abstract Thescelosaurines are a group of early diverging, ornithischian dinosaurs notable for their conservative bauplans and mosaic of primitive features. Although abundant within the latest Cretaceous ecosystems of North America, their record is poor to absent in earlier assemblages, leaving a large gap in our understanding of their evolution ...
Haviv M. Avrahami +3 more
wiley +1 more source
A new kannemeyeriiform dicynodont (Ufudocyclops mukanelai gen. et sp. nov.) from Subzone C of the Cynognathus Assemblage Zone (Triassic of South Africa) with implications for biostratigraphic correlation with other African Triassic faunas [PDF]
, 2019 A new taxon of kannemeyeriiform dicynodont, Ufudocyclops mukanelai, is described based on a well-preserved skull from Subzone C of the Cynognathus Assemblage Zone, which are the youngest strata (probably Middle Triassic) of the Beaufort Group (uppermost ...
Kammerer, Christian +4 more
core +1 more source
Biological Reviews, Volume 99, Issue 6, Page 2304-2337, December 2024.ABSTRACT Turbinals are bony or cartilaginous structures that are present in the nasal cavity of most tetrapods. They are involved in key functions such as olfaction, heat, and moisture conservation, as well as protection of the respiratory tract. Despite recent studies that challenged long‐standing hypotheses about their physiological and genomic ...
Quentin Martinez +10 more
wiley +1 more source
The Anatomical Record, Volume 307, Issue 11, Page 3437-3505, November 2024.Abstract The humerus is central for locomotion in turtles as quadrupedal animals. Osteological variation across testudine clades remains poorly documented. Here, we systematically describe the humerus anatomy for all major extant turtle clades based on 38 species representing the phylogenetic and ecological diversity of crown turtles.
Guilherme Hermanson +3 more
wiley +1 more source
A new dicynodont–archosaur assemblage from the Late Triassic (Carnian) of Poland
, 2010 This paper reports a new assemblage from the Late Triassic (mid–late Carnian) at Woźniki near Częstochowa (Poland). The Woźniki vertebrate assemblage is similar to that of Lisowice–Lipie Śląskie, a new locality bearing vertebrates from latest Triassic ...
Mateusz Tałanda +3 more
core +1 more source
Journal of Anatomy, Volume 244, Issue 6, Page 959-976, June 2024.Phytosaurs, a group of Triassic semi‐aquatic archosauriform reptiles, are thought to vary in their numbers of sacral vertebrae from two, the plesiomorphic condition for archosauriforms, to three, with the addition of a sacralized dorsal (i.e., dorsosacral) vertebra.
Caleb N. LePore, Matthew A. McLain
wiley +1 more source
, 2009 Recent years have seen a renewed interest in the postcranial anatomy of Triassic dicynodonts from Africa. This study investigates the previously undescribed dicynodont postcrania from the Omingonde Formation of Namibia.
Govender, Romala, Yates, Adam
core
On the stratigraphic range of the dicynodont taxon Emydops (Therapsida: Anomodontia) in the Karoo Basin, South Africa [PDF]
, 2005 The dicynodont specimen SAM-PK-708 has been referred to the genera Pristerodon and Emydops by various authors, and was used to argue that the first appearance of Emydops was in the Tapinocephalus Assemblage Zone in the Karoo Basin of South Africa ...
Smith, RMH +5 more
core