The aim of the study was to investigate head structures two domestic sheep breeds (Hasak and Hasmer) in Turkey. Gender neutral eight adult Hasmer 45-66 kg Hasak 43-66 obtained from Bahri Dag˘das¸ International Agricultural Research Institute were used this study. Measurements made using digital caliper 40 points on skulls both species. skull (265.56 ± 14.08) longer than (262.86 9.65). Howeve...

We report here a neurocranial abnormality previously undescribed in Pleistocene human fossils, an enlarged parietal foramen (EPF) in the early Late Pleistocene Xujiayao 11 parietal bones from the Xujiayao (Houjiayao) site, northern China. Xujiayao 11 is a pair of partial posteromedial parietal bones from an adult. It exhibits thick cranial vault bones, arachnoid granulations, a deviated posteri...

Introduction. Acrania is a very rare lethal congenital malformation characterized by an absence of the cranial vault with developed cerebral hemispheres. It sometimes confused anencephaly in which both forebrain and neurocranium are not developed. Although these two conditions principally differ their morphology pathogenesis, acrania may be precursor development through process known as Acrania...

Complete, exceptionally-preserved skulls of the Permian lungfish Persephonichthys chthonica gen. et sp. nov. are described. Persephonichthys chthonica is unique among post-Devonian lungfishes in preserving portions of the neurocranium, permitting description of the braincase of a stem-ceratodontiform for the first time. The completeness of P. chthonica permits robust phylogenetic analysis of th...

New insights may be gleaned by taking an ontogenetic approach to investigations of adult dimorphism. Previous work in this area relied on traditional, caliper-based, morphometric methods, and produced conflicting results. This study uses a three-dimensional (3-D) approach for both local and global form comparisons of sex-specific growth and growth patterns. 3-D coordinate data were collected fo...

Acrania is an extremely rare congenital developmental anomaly. It is often confused with another disease entity, anencephaly. Even though these two developmental defects often occur simultaneously, they are believed to have different pathogenic mechanisms. We report the case of a 22-year-old woman with an unremarkable first trimester pregnancy who delivered a demised male fetus at 16 weeks gest...

Anatomically, modern humans differ from archaic forms in possessing a globular neurocranium and a retracted face and in cognitive functions, many of which are associated with the temporal lobes. The middle cranial fossa (MCF) interacts during growth and development with the temporal lobes, the midface, and the mandible. It has been proposed that evolutionary transformations of the MCF (perhaps ...

Lysorophians are a group of early tetrapods with extremely elongate trunks, reduced limbs, and highly reduced skulls. Since the first discovery of this group, general similarities in outward appearance between lysorophians and some modern lissamphibian orders (specifically Urodela and Gymnophiona) have been recognized, and sometimes been the basis for hypotheses of lissamphibian origins. We stu...