Results 51 to 60 of about 20,297 (243)
Abstract Softshell turtles (Pan‐Trionychidae) are an early branching clade of hidden‐necked turtles (Cryptodira) with a rich fossil record extending back to the Early Cretaceous. The evolutionary history of softshell turtles is still unresolved because of their conservative morphology combined with high levels of polymorphism related to morphological ...
Léa C. Girard, Walter G. Joyce
wiley +1 more source
Gladiopycnodontidae, a new family of pycnodontiform fi shes from the Late Cretaceous of Lebanon, with the description of three genera [PDF]
The osteology of Gladiopycnodus karami gen. et sp. nov., of Monocerichthys scheuchzeri gen. et sp. nov. and of Rostropycnodus gayeti gen. et sp. nov., three new fossil fishes from the marine Cenomanian (Late Cretaceous) of Lebanon, is studied in detail ...
Capasso, Luigi, Taverne, Louis
core +3 more sources
Abstract Neuroanatomical research has progressed considerably in several vertebrate lineages, yet studies of reptilian brain morphology remain markedly underdeveloped. Here we provide the first description of macroscopic brain anatomy and its ontogeny in the viperid Bothrops moojeni, based on a sample of seven individuals.
Paula Araújo +2 more
wiley +1 more source
Molecular and cellular mechanisms underlying the evolution of form and function in the amniote jaw. [PDF]
The amniote jaw complex is a remarkable amalgamation of derivatives from distinct embryonic cell lineages. During development, the cells in these lineages experience concerted movements, migrations, and signaling interactions that take them from their ...
A Abzhanov +395 more
core +1 more source
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri +8 more
wiley +1 more source
Cephalometric appraisal of the hyoid triangle in brazilian people of Piracicaba’s region
The Triangle Hyoid was measured by cephalometric measures in Brazilian individuals from Piracicaba’s region by establishing comparisons with the values existing in the literature objectiving to establish values of normality for the position of the hyoid ...
Maria Julia Pereira Coelho Ferraz +4 more
doaj +1 more source
On the Stylohyoid Bone of Naumann's Elephant (Elephas naumanni MAKIYAMA) from Lake Nojiri [PDF]
The find of the hyoid bone in fossil state has been very rarely reported hitherto. Recently, a part of Proboscidean hyoid bone was unearthed from the bottom sediments at Lake Nojiri, central Japan.
Hasegawa, Yoshikazu +3 more
core
Primate modularity and evolution: first anatomical network analysis of primate head and neck musculoskeletal system [PDF]
Network theory is increasingly being used to study morphological modularity and integration. Anatomical network analysis (AnNA) is a framework for quantitatively characterizing the topological organization of anatomical structures and providing an ...
A Goswami +46 more
core +3 more sources
Abstract Hypoglossal nerve or tongue protruding muscle stimulation is a current treatment option for obstructive sleep apnea. Thus, the present study analyzed 3D deformations of the volumetric enlarged and reduced tongue base upon oropharyngeal neuromuscular stimulation.
Sydney Chen +2 more
wiley +1 more source
Early evolution of the gular musculature and its innervation in ray‐finned fishes
Abstract Gular muscles are an important but often overlooked component of cranial anatomy in bony fishes. They are located on the ventral surface of the head and are derived from the mandibular and hyoid arches. We present a comprehensive review of the gular musculature and its innervation across early diverging actinopterygian lineages. By integrating
Aléssio Datovo +4 more
wiley +1 more source

