Results 61 to 70 of about 47,390 (286)

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

A Case of Ossifying Fibroma of the Parietal Bone

open access: yesNeurologia medico-chirurgica, 1982
A rare case of a 13-year-old boy with ossifying fibroma in the parietal bone is presented, and differential diagnosis from other fibro-osseous tumors such as osteoma and fibrous dysplasia is briefly discussed. X-ray films of the skull showed a round, well-circumscribed osteoplastic lesion with a few radiolucent spots in its interior in the right ...
SHISHIDO, Toyofumi   +5 more
openaire   +3 more sources

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

open access: yesThe Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli   +6 more
wiley   +1 more source

An experimental model for the study of craniofacial deformities Modelo experimental para o estudo de deformidades craniofaciais

open access: yesActa Cirúrgica Brasileira, 2010
PURPOSE: To develop an experimental surgical model in rats for the study of craniofacial abnormalities. METHODS: Full thickness calvarial defects with 10x10-mm and 5x8-mm dimensions were created in 40 male NIS Wistar rats, body weight ranging from 320 to
André de Mendonça Costa   +6 more
doaj   +1 more source

A bone-thickness map as a guide for bone-anchored port implantation surgery in the temporal bone [PDF]

open access: yes, 2013
The bone-anchored port (BAP) is an investigational implant, which is intended to be fixed on the temporal bone and provide vascular access. There are a number of implants taking advantage of the stability and available room in the temporal bone.
Arnold, Andreas Michael   +9 more
core   +1 more source

Bone-by-bone: A detailed skull description of the White-headed dwarf gecko Lygodactylus picturatus (Peters, 1870)

open access: yes, 2021
The Lygodactylus genus is one of the most species-rich genera of gekkonid lizards in Africa. It is one of relatively few exclusively diurnal geckos’ lineages and its members include some of the smallest gekkonids.
Javier Lobon-Rovira (11570210)   +1 more
core   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

open access: yesThe Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Histopathologic and spectrometric evaluation of bony components of synostotic suture and parietal bone in children with sagittal synostosis

open access: yes, 2023
AIM: To understand the characterization of the ossification process both in the synostotic suture, and the adjacent parietal bone. MATERIAL and METHODS: The surgical procedure for the 28 patients diagnosed with sagittal synostosis consisted of removing ...
FİLİNTE, DENİZ
core   +1 more source

Re‐evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity

open access: yesThe Anatomical Record, EarlyView.
Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe   +4 more
wiley   +1 more source

Estimation of Gestational Age According to Sonography Parameters , Comparing Mono - and Multivariate Models

open access: yesپزشکی بالینی ابن سینا, 2004
One of the essential purpose of prenatal care is the measurement of fetal growth and also estimation of fetal age. Sonography is a valid device with measurement of femoral length , Scapula length , Biparietal diameter and abdominal circumference.
Farnaz Fahimi
doaj  

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