Results 31 to 40 of about 45,464 (312)

New genus of primitive wombat (Vombatidae, Marsupialia) from Miocene deposits in the Riversleigh World Heritage Area (Queensland, Australia) [PDF]

open access: yes, 2015
Copyright Palaeontological Association, March 2015. This is an open access article, available to all readers online, published under a creative commons licensing (https://creativecommons.org/licenses/by/4.0/)
Abel, R, Archer, M, Brewer, P, Hand, SJ
core   +1 more source

Imaging for juvenile angiofibroma [PDF]

open access: yes, 2002
Juvenile angiofibroma presents characteristic imaging signs, many of which allow diagnosis and accurate estimation of extent without recourse to the dangers of biopsy.
Howard, D, Lloyd, G, Lund, VJ, Savy, L
core   +1 more source

Comparative analysis of sexual variability of morphometric parameters of the posterior cranial fossa, cerebellum and their ratios in adults

open access: yesИзвестия высших учебных заведений. Поволжский регион: Медицинские науки, 2023
Background. The relevance of this study is to study the variability of the structures of the posterior cranial fossa, cerebellum and their ratios related to the magnitude of the basilar angle, which are taken into account in neurorentgenology as ...
O.Yu. Aleshkina   +6 more
doaj   +1 more source

Morphological study of bone structure of the posterior cranial fossa in adults with Chiari malformation type Ⅰ without basilar invagination

open access: yesDi-san junyi daxue xuebao, 2020
Objective To examine the morphological characteristics of the bone structure in the posterior cranial fossa in adult patients with Chiari malformation type Ⅰ (CMⅠ) without basilar invagination. Methods Thirty-eight adult patients with CMⅠ without basilar
WANG Shengxi   +4 more
doaj   +1 more source

The brachyopoid Hadrokkosaurus bradyi from the early Middle Triassic of Arizona, and a phylogenetic analysis of lower jaw characters in temnospondyl amphibians [PDF]

open access: yes, 2008
The holotype of the brachyopoid temnospondyl Hadrokkosaurus bradyi, represented by a right lower jaw ramus, is re−ex− amined based upon new data and revision of various morphological features.
Bolt, John R., Ruta, Marcello
core   +1 more source

Craniopharyngioma involving the anterior, middle, and posterior cranial fossa in adults: A case report

open access: yesFrontiers in Neurology, 2023
Craniopharyngioma (CP) is a rare benign tumor that develops from the residual epithelial cells of the craniopharynx, accounting for < 5% of intracranial tumors. It is common for CPs to grow in the sellar/parasellar region and extend suprasellar.
Bin Tian   +5 more
doaj   +1 more source

Morphological evolution of the mammalian jaw adductor complex [PDF]

open access: yes, 2016
The evolution of the mammalian jaw during the transition from non-mammalian synapsids to crown mammals is a key event in vertebrate history and characterised by the gradual reduction of its individual bones into a single element and the concomitant ...
Abdala   +98 more
core   +4 more sources

Correlation between bony structures of the posterior cranial fossa and the occurrence of hemifacial spasm

open access: yesFrontiers in Neurology
ObjectiveTo quantitatively study the measurement data related to the bony posterior cranial fossa and explore the correlation between bony posterior cranial fossa morphology and the occurrence of hemifacial spasm.MethodsA total of 50 patients with ...
Tianjin Tang   +4 more
doaj   +1 more source

The oldest known snakes from the Middle Jurassic-Lower Cretaceous provide insights on snake evolution [PDF]

open access: yes, 2015
The previous oldest known fossil snakes date from ∼100 million year old sediments (Upper Cretaceous) and are both morphologically and phylogenetically diverse, indicating that snakes underwent a much earlier origin and adaptive radiation.
Apesteguía, Sebastián   +3 more
core   +1 more source

Evolutionary relationships and systematics of Atoposauridae (Crocodylomorpha: Neosuchia): implications for the rise of Eusuchia [PDF]

open access: yes, 2016
Atoposaurids are a group of small-bodied, extinct crocodyliforms, regarded as an important component of Jurassic and Cretaceous Laurasian semi-aquatic ecosystems.
Mannion, PD, Tennant, JP, Upchurch, P
core   +3 more sources

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