Contribution on the size and morphology of Subarcuate fossa in some mammals and its implications to phylogeny

The size of subarcuate fossa of six different mammals has been observed. Among the examined species; camel, dog, rabbit and rat show clear subarcuate structure, which was characterized by the shape of fossa, and could be easily measured by using endocast. In these species the parafloccular lobe o...

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Autor principal:	Safwat Ali
Formato:	article
Lenguaje:	EN
Publicado:	South Valley University 2021
Materias:	subarcuate fossa skull size rat ruminants phylogeny Agriculture S Veterinary medicine SF600-1100
Acceso en línea:	https://doaj.org/article/c6327fcba5284ff38b45dfde7eee1281
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spelling	oai:doaj.org-article:c6327fcba5284ff38b45dfde7eee12812021-12-02T17:42:44ZContribution on the size and morphology of Subarcuate fossa in some mammals and its implications to phylogeny10.21608/SVU.2021.60109.11032535-18262535-1877https://doaj.org/article/c6327fcba5284ff38b45dfde7eee12812021-05-01T00:00:00Zhttps://svu.journals.ekb.eg/article_171192.htmlhttps://doaj.org/toc/2535-1826https://doaj.org/toc/2535-1877The size of subarcuate fossa of six different mammals has been observed. Among the examined species; camel, dog, rabbit and rat show clear subarcuate structure, which was characterized by the shape of fossa, and could be easily measured by using endocast. In these species the parafloccular lobe of cerebellum is isolated from cranial cavity and engulfed by this fossa. However, in donkey, the fossa is unclear or absent. Studies have reported correlated relationship between the subarcuate fossa and the size of skull and certain parts of the cerebellum. The size of the subarcuate fossa is varying from absence of the fossa to large size fossa with its high contribution area of skull size. Dog has the largest subarcuate fossa among the examined species in this study followed by rabbit then camel, after that rat, very small in ruminants and nearly absent in equine. The study reveals the possibility of subarcuate fossa to determine the degree of evolution of the animals, based on variation of this fossa in closely related animals. This order does not follow any previous study in literatures that hypothesis correlation between the size of subarcuate fossa and the size of skull or animal size or even part of cerebellum which evolved in this fossa. The result of this paper supports the hypothesis of the correlation relationship between subarcuate fossa and phylogeny of the animals.Safwat Ali South Valley Universityarticlesubarcuate fossaskull sizeratruminantsphylogenyAgricultureSVeterinary medicineSF600-1100ENSVU-International Journal of Veterinary Sciences, Vol 4, Iss 2, Pp 27-34 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	subarcuate fossa skull size rat ruminants phylogeny Agriculture S Veterinary medicine SF600-1100
spellingShingle	subarcuate fossa skull size rat ruminants phylogeny Agriculture S Veterinary medicine SF600-1100 Safwat Ali Contribution on the size and morphology of Subarcuate fossa in some mammals and its implications to phylogeny
description	The size of subarcuate fossa of six different mammals has been observed. Among the examined species; camel, dog, rabbit and rat show clear subarcuate structure, which was characterized by the shape of fossa, and could be easily measured by using endocast. In these species the parafloccular lobe of cerebellum is isolated from cranial cavity and engulfed by this fossa. However, in donkey, the fossa is unclear or absent. Studies have reported correlated relationship between the subarcuate fossa and the size of skull and certain parts of the cerebellum. The size of the subarcuate fossa is varying from absence of the fossa to large size fossa with its high contribution area of skull size. Dog has the largest subarcuate fossa among the examined species in this study followed by rabbit then camel, after that rat, very small in ruminants and nearly absent in equine. The study reveals the possibility of subarcuate fossa to determine the degree of evolution of the animals, based on variation of this fossa in closely related animals. This order does not follow any previous study in literatures that hypothesis correlation between the size of subarcuate fossa and the size of skull or animal size or even part of cerebellum which evolved in this fossa. The result of this paper supports the hypothesis of the correlation relationship between subarcuate fossa and phylogeny of the animals.
format	article
author	Safwat Ali
author_facet	Safwat Ali
author_sort	Safwat Ali
title	Contribution on the size and morphology of Subarcuate fossa in some mammals and its implications to phylogeny
title_short	Contribution on the size and morphology of Subarcuate fossa in some mammals and its implications to phylogeny
title_full	Contribution on the size and morphology of Subarcuate fossa in some mammals and its implications to phylogeny
title_fullStr	Contribution on the size and morphology of Subarcuate fossa in some mammals and its implications to phylogeny
title_full_unstemmed	Contribution on the size and morphology of Subarcuate fossa in some mammals and its implications to phylogeny
title_sort	contribution on the size and morphology of subarcuate fossa in some mammals and its implications to phylogeny
publisher	South Valley University
publishDate	2021
url	https://doaj.org/article/c6327fcba5284ff38b45dfde7eee1281
work_keys_str_mv	AT safwatali contributiononthesizeandmorphologyofsubarcuatefossainsomemammalsanditsimplicationstophylogeny
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Contribution on the size and morphology of Subarcuate fossa in some mammals and its implications to phylogeny

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