Results 51 to 60 of about 581 (152)

Can maxillary canal morphology inform varanopid phylogenetic affinities? [PDF]

open access: yes, 2021
Varanopidae have historically been classified as members of the basal synapsid grade “Pelycosauria”. However, recent phylogenetic works proposed that varanopids may in fact belong to the Diapsida.
Benoit, Julien   +7 more
core   +3 more sources

Middle ear structures in the Permian Glanosuchus sp. (Therocephalia, Therapsida), based on thin sections [PDF]

open access: yesFossil Record, 2002
Transverse sections of the skull of the Permian therocephalian Glanosuchus sp. were studied with regard to the structures of the middle ear region. It is generally accepted that most of the skeletal elements of the mammalian middle ear are derived from ...
W. Maier, J. van den Heever
doaj   +1 more source

Osteology of the pectoral girdle and forelimb of Siriusgnathus niemeyerorum, a Late Triassic traversodontid cynodont from Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Traversodontids are non‐mammaliaform cynodonts, herbivorous to omnivorous, that lived during the Triassic. In the Late Triassic, some members of this group increased in body size relative to other cynodont lineages and evolved postcranial adaptations associated with locomotion.
Jhonata H. A. Martins, Leonardo Kerber
wiley   +1 more source

Developmental and Evolutionary Significance of the Zygomatic Bone

open access: yesThe Anatomical Record, Volume 299, Issue 12, Page 1616-1630, December 2016., 2016
ABSTRACT The zygomatic bone is derived evolutionarily from the orbital series. In most modern mammals the zygomatic bone forms a large part of the face and usually serves as a bridge that connects the facial skeleton to the neurocranium. Our aim is to provide information on the contribution of the zygomatic bone to variation in midfacial protrusion ...
Yann Heuzé   +4 more
wiley   +1 more source

Therapsida, Dicynodontia : aspectos gerais e registros brasileiros [PDF]

open access: yes, 2015
Orientador: Cristina Silveira VegaMonografia (Bacharelado) - Universidade Federal do Paraná. Setor de Ciências Biológicas. Curso de Graduação em Ciências BiológicasResumo : Os Dicynodontia pertencem ao grupo dos Synapsida e dentro destes, dos Therapsida,
Dutra, Barbara Aline Mainardes
core  

3D Photogrammetric model of Tapinocaninus pamelae

open access: yes, 2018
3D photogrammetric model of Tapinocaninus pamelae. Supplementary Material of the paper: Rubidge B., Govender R., & Romano M. The postcranial skeleton of the basal tapinocephalid dinocephalian Tapinocaninus pamelae (Synapsida: Therapsida) from the South ...
Romano, M
core   +2 more sources

Bringing dicynodonts back to life: paleobiology and anatomy of a new emydopoid genus from the Upper Permian of Mozambique. [PDF]

open access: yesPLoS ONE, 2013
Dicynodontia represent the most diverse tetrapod group during the Late Permian. They survived the Permo-Triassic extinction and are central to understanding Permo-Triassic terrestrial ecosystems.
Rui Castanhinha   +8 more
doaj   +1 more source

Exceptional preservation informs the paleobiology of tapinocephalid dinocephalians

open access: yesThe Anatomical Record, EarlyView.
Abstract The tapinocephalid dinocephalian Moschops is one of the most iconic taxa of the middle Permian, yet its paleobiology remains one of the least well‐known. Here, we address some aspects of paleoneurology and paleobiology of Moschops using CT scanning of four well preserved skulls from the upper Abrahamskraal Formation of South Africa. Two of the
Julien Benoit   +6 more
wiley   +1 more source

Evolution and Development of Dual Ingestion Systems in Mammals: Notes on a New Thesis and Its Clinical Implications

open access: yesInternational Journal of Pediatrics, Volume 2012, Issue 1, 2012., 2012
Traditionally, the development of oral feeding is viewed as a continuous, unitary process in which reflex‐dominated sucking behavior gives rise to a more varied and volitional feeding behavior. In contrast, we consider the thesis that the infant develops two separable ingestive systems, one for suckling and one for feeding.
Jeffrey R. Alberts   +2 more
wiley   +1 more source

FIG. 2 in Taxonomic revision of therocephalians (Therapsida: Theriodontia) from the Lower Triassic of Antarctica

open access: yes, 2012
FIG. 2. Consensus cladogram summarizing the results of several recent analyses of therocephalian relationships (Hopson and Barghusen, 1986; van den Heever, 1994; Botha et al., 2007; Abdala, 2007; Huttenlocker, 2009; Huttenlocker et al., 2011). Numbers in
Sidor, Christian A.   +1 more
core   +1 more source

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