Results 91 to 100 of about 19,365 (248)

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

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

The 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, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source

Accessory occipital suture simulating fracture in pediatric head trauma: A case report

Radiology Case Reports
The development of the occipital bone is complex and the presence of accessory sutures, such as the mendosal suture, represent a diagnostic challenge in pediatric imaging.
Bouanane Rania, MD, Belkouchi Lina, MD, Taibi Ouiam, MD, Allali Nazik, PhD, Chat Latifa, PhD, El haddad Siham, PhD   +5 more
doaj   +1 more source

Obliteration of serrated sutures of a human skull (review) [PDF]

Саратовский научно-медицинский журнал, 2011
The review presents information on obliteration of serrated sutures of a human skull. It considers the age-specific variability and sexual dimorphism. The causes of craniostenosis and dependence of cranial form on degree and type of craniostenosis are ...
Zaichenko A.A., Kochenkova О.V., Anisimova Е.А., Anisimov D.I., Lukin О.Yu.   +4 more
doaj  

Early stages of tooth development in the harbor porpoise Phocoena phocoena

The Anatomical Record, EarlyView.
Abstract Here we describe the stages of tooth development in toothed whales on the basis of the harbor porpoise (Phocoena phocoena). The aim of the study was to find out whether these stages are identical to those of other mammals analyzed so far although toothed whales are homodont and monophyodont.
Lasse M. Mathes, Lennart Müller‐Thomsen, Stefan Huggenberger   +2 more
wiley   +1 more source

The mechanism of labor in nonhuman primates: A look inside

The Anatomical Record, EarlyView.
Abstract While in humans, the flexed position of the fetus and its rotating course down the birth canal are well documented, in other primates the mechanism of labor is unknown. Despite the lack of comparative data, it is commonly assumed that the human obstetric mechanism is unique, and anthropologists have disputed when and why the transition to the ...
Melissa K. Stoller
wiley   +1 more source

Optimal trajectory of the neuroendoscope for third ventricle pavement access

Frontiers in Neuroanatomy
Background and aimEndoscopic Third Ventriculostomy (ETV) is used to treat hydrocephalus, an abnormal cerebrospinal fluid accumulation in brain ventricles.
Joana Sousa, Susana Maria Silva, Susana Maria Silva, Hélio Alves, Bruno Carvalho, Bruno Carvalho, José Maria Sousa, Manuel J. Ferreira-Pinto, Manuel J. Ferreira-Pinto, Manuel J. Ferreira-Pinto, Manuel J. Ferreira-Pinto, José Paulo Andrade, José Paulo Andrade   +12 more
doaj   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson, Alison M. Murray, Donald B. Brinkman   +2 more
wiley   +1 more source

Fgfr3–Wnt signaling crosstalk is involved in maintaining cranial suture integrity

Bone Research
Cranial suture formation is a dynamic process that requires precise cellular and molecular coordination to regulate bone growth and maintain suture homeostasis. The Fibroblast Growth Factor Receptor 3 (FGFR3) signaling pathway is among the major pathways
Rachel Pereur, Yvan Marc, Yuliya Lim, Alain Schmitt, Marilyne Malbouyres, Anatole Chessel, Florence Ruggiero, Marie-Claire Schanne-Klein, Laurence Legeai-Mallet, Emilie Dambroise   +9 more
doaj   +1 more source

Craniofacial growth, modeling, and estimation of milestones

The Anatomical Record, EarlyView.
Abstract Understanding craniofacial growth is foundational for research into intra‐ and interspecies variation, evolution, and clinical care. The Craniofacial Growth Consortium Study (CGCS), combines cephalographs from historical growth studies to create a dense longitudinal record of growth from 6 to 22 years of age.
Richard J. Sherwood, Dana L. Duren, Christina L. Holzhauser, Hee Soo Oh, Manish Valiathan, Kieran P. McNulty, Kevin M. Middleton   +6 more
wiley   +1 more source