Results 21 to 30 of about 446 (130)

Evidence of a therapsid scavenger in the Late Permian Karoo Basin, South Africa

open access: yesSouth African Journal of Science, 2012
Dicynodonts are an extinct group of herbivorous non-mammalian therapsids ('mammal-like' reptiles) that are widely known from terrestrial Permo-Triassic strata throughout Pangaea. Dicynodont fossil remains are common within the Late Permian Beaufort Group
Nicholas Fordyce   +2 more
doaj   +4 more sources

Early synapsids neurosensory diversity revealed by CT and synchrotron scanning. [PDF]

open access: yesAnat Rec (Hoboken)
Abstract Non‐mammaliaform synapsids (NMS) represent the closest relatives of today's mammals among the early amniotes. Exploring their brain and nervous system is key to understanding how mammals evolved. Here, using CT and Synchrotron scanning, we document for the first time three extreme cases of neurosensory and behavioral adaptations that probe ...
Benoit J   +6 more
europepmc   +2 more sources

Figure S2 from The evolution of the synapsid tusk: insights from dicynodont therapsid tusk histology

open access: yes, 2021
Supplemental Figure 2. The developmental pathways reviewed in Figure 3 of the main text under four dicynodont tree typologies. See Figure 3 for discussion of (A) that is taken from Angielczyk and Kammerer (2017).
B. R. Peecook (11552262)   +3 more
core   +1 more source

A new occurrence of the Late Triassic archosaur Smok in southern Poland [PDF]

open access: yesActa Palaeontologica Polonica, 2018
Two isolated teeth, a dorsal vertebra, fragments of a humerus and femur, a fragmentary pubic “boot” and part of an ischium shaft, identified here as belonging to a large predatory archosaur were discovered in the Upper Triassic site at Marciszów near ...
Grzegorz Niedźwiedzki   +1 more
doaj   +1 more source

Bone microstructure and the evolution of growth patterns in Permo-Triassic therocephalians (Amniota, Therapsida) of South Africa [PDF]

open access: yesPeerJ, 2014
Therocephalians were a speciose clade of nonmammalian therapsids whose ecological diversity and survivorship of the end-Permian mass extinction offer the potential to investigate the evolution of growth patterns across the clade and their underlying ...
Adam K. Huttenlocker   +1 more
doaj   +2 more sources

Review of the tetrapod skull-neck boundary: implications for the evolution of the atlas-axis complex. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT This review describes variation in modern and fossil occiput–atlas–axis complex anatomy of total group Tetrapoda with the aim of documenting the range of structural variation throughout their evolutionary history to establish grounds for comparison of the complex between tetrapod clades.
Korneisel DE, Maddin HC.
europepmc   +2 more sources

The last dicynodont? Re-assessing the taxonomic and temporal relationships of a contentious Australian fossil

open access: yes, 2019
Appendices for "The last dicynodont? Re-assessing the taxonomic and temporal relationships of a contentious Australian fossil", consisting of geochemical data, Queensland Museum archival data, and 3D model of the main specimen ...
Knutsen, E (via Mendeley Data)
core   +2 more sources

Skull of the dicynodont Placerias from the Upper Triassic of Arizona [PDF]

open access: yes, 2002
We describe here a rare, incomplete but articulated skull of the dicynodont Placerias from the Blue Mesa Member of the Petrified Forest Formation in northern Arizona. This specimen comes from near the type locality of P.
NC DOCKS at Appalachian State University   +1 more
core   +2 more sources

Data from: A new taxon of cistecephalid dicynodont from the upper Permian Kundaram Formation of India

open access: yes, 2016
A new cistecephalid dicynodont, Sauroscaptor tharavati gen. et sp. nov., is described from the upper Permian Kundaram Formation of India. This taxon is represented by specimens formerly referred to the African dicynodont genera Cistecephalus and Emydops.
Sanghamitra Ray   +5 more
core   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

open access: yesThe Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo   +5 more
wiley   +1 more source

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