Results 41 to 50 of about 655 (130)

Digital cranial endocast of Hyopsodus (Mammalia, "Condylarthra"): a case of paleogene terrestrial echolocation? [PDF]

PLoS ONE, 2012
We here describe the endocranial cast of the Eocene archaic ungulate Hyopsodus lepidus AMNH 143783 (Bridgerian, North America) reconstructed from X-ray computed microtomography data.
Maeva J Orliac, Christine Argot, Emmanuel Gilissen   +2 more
doaj   +1 more source

Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny

The Anatomical Record, EarlyView.
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund, Frederik P. Wolvaardt, Roger M. H. Smith, Jaganmoy Jodder, Julien Benoit   +4 more
wiley   +1 more source

Brain size reduction in dogs was already established at least by the Late Neolithic of Western Europe, 5000 years ago [PDF]

Royal Society Open Science
The timing and causes of brain size reduction in domestic dogs remain uncertain. Using endocast volume as a proxy for brain size, this study provides a first insight into long-term brain size evolution in the wolf-dog lineage.
Thomas Cucchi, Lucile-Morgane Hays, Alessio Veneziano, Margot Michaud, Colline Brassard, Rose-Marie Arbogast, Pierre Pétrequin, Mietje B. Germonpré, Evelyne Crégut-Bonnoure, Frédéric Elleboudt, Kalman Czeibert, László Zsolt Garamszegi, Enikő Kubinyi, Niclas Kolm, Tibor Csörgő, Justine Joseph, Salomé Leroy, Claude Guintard, Marion Fusellier, Christophe Duchamp, Anthony Herrel, Loukas George Koungoulos, Thomas J. Peachey, Lachie Scarsbrook, Laurent Frantz, Joan Madurell-Malapeira, Sandrine Ladevèze   +26 more
doaj   +1 more source

Exceptional preservation informs the paleobiology of tapinocephalid dinocephalians

The 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, Lars Schmitz, Kenneth D. Angielczyk, Luke A. Norton, Andrew D. Bolton, Adam Midzuk, Roger M. H. Smith   +6 more
wiley   +1 more source

Neuroanatomy of the marine Jurassic turtle Plesiochelys etalloni (Testudinata, Plesiochelyidae). [PDF]

PLoS ONE, 2013
Turtles are one of the least explored clades regarding endocranial anatomy with few available descriptions of the brain and inner ear of extant representatives.
Ariana Paulina Carabajal, Juliana Sterli, Johannes Müller, André Hilger   +3 more
doaj   +1 more source

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

The Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe, Hallie P. Street‐Sampson, Takuya Konishi, Michael W. Caldwell   +3 more
wiley   +1 more source

Clinical Anatomy of the Left and Right Atrial Appendages in Humans: Comparative and Developmental Perspective

Clinical Anatomy, EarlyView.
ABSTRACT Human atrial chambers derive from distinct embryonic anlagens, the original embryonic atria gradually transforming into the so‐called auricles, or atrial appendages. This study quantifies macroscopic variations in pectinate muscle architecture in human atrial appendages and evaluates their visualization using clinical imaging modalities.
Markéta Lexová, Caroline Neradilová, Jan Kovanda, Jan Burkert, Jiří Beneš Jr., Martin Bartos, Theodor Adla, Vojtech Melenovsky, Alena Kvasilova, Ondrej Fabian, Ondrej Naňka, David Sedmera   +11 more
wiley   +1 more source

Aspects of gorgonopsian paleobiology and evolution: insights from the basicranium, occiput, osseous labyrinth, vasculature, and neuroanatomy [PDF]

PeerJ, 2017
Synapsida, the clade including therapsids and thus also mammals, is one of the two major branches of amniotes. Organismal design, with modularity as a concept, offers insights into the evolution of therapsids, a group that experienced profound anatomical
Ricardo Araújo, Vincent Fernandez, Michael J. Polcyn, Jörg Fröbisch, Rui M.S. Martins   +4 more
doaj   +2 more sources

The morphological affinities of the fossil cranium from Kabua, Kenya Affinités morphologiques du crâne fossile de Kabua (Kenya)

Journal of the Royal Anthropological Institute, EarlyView.
Our current understanding of the origins of Homo sapiens is limited, in part, by the fragmented fossil record from Late Pleistocene and early Holocene Africa. Here, we re‐examine the Kabua 1 cranium, an enigmatic and little‐studied Kenyan fossil discovered in the 1950s. We compare virtual reconstructions created previously by our team with a wide range
Abel Marinus Bosman, Laura Tabitha Buck, Hugo Reyes‐Centeno, Marta Mirazón Lahr, Chris Stringer, Rainer Grün, Qingfeng Shao, Katerina Harvati   +7 more
wiley   +1 more source

The cranial endocast of the Upper Devonian dipnoan ‘Chirodipterus’ australis [PDF]

PeerJ, 2018
One of the first endocasts of a dipnoan (lungfish) to be realised was that of the Upper Devonian taxon Chirodipterus australis. This early interpretation was based on observations of the shape of the cranial cavity alone and was not based on a natural ...
Struan A.C. Henderson, Tom J. Challands
doaj   +2 more sources