QUE SIGNIFIE COSMINE EN ANGLAIS
Cosmine
Cosmine est un matériau spongieux et osseux qui forme les couches de type dentine dans les écailles des poissons à nageoires de la classe Sarcopterygii. Les écailles de poisson qui incluent des couches de cosmine sont connues sous le nom d'écailles cosmoïdes.
définition de cosmine dans le dictionnaire anglais
La définition de la cosmine dans le dictionnaire est une substance ressemblant à la dentine, formant la couche externe des échelles cosmoïdes.
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10 LIVRES EN ANGLAIS EN RAPPORT AVEC «COSMINE»
Découvrez l'usage de
cosmine dans la sélection bibliographique suivante. Des livres en rapport avec
cosmine et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Earth and Life: Global Biodiversity, Extinction Intervals ...
The dermal bones are covered with cosmine, as are the scales. The onychodonts
were large predatory fish, with well developed jaws bearing parasymphysial
tooth whorls on the lower jaw, and single teeth set in sockets along both jaws.
2
Skeletal Biomineralization: Pattern, Processes, and ...
Cosmine characterizes cosmoid scales. Individual cosmine sheets consist of a
great number of small, hard tissue units or odontodes (mesodentine in the
Osteostraci, dentine in most other bony fishes). Cosmine also occurs in
osteolepid ...
3
Hyman's Comparative Vertebrate Anatomy
The underlying scale layer was correctly identified as dentin, but where a similar
substance occurred in nonplacoid scales, it was given the name "cosmine." By 1
907 Goodrich had recognized that in the cosmine-bearing scales of extinct ...
5 A) : 1. Isopedine. This is the inner (basal) layer consisting of layered bone. It is
pierced by channels for blood vessels. 2. Vascular layer. This is the middle layer
consisting of spongy bone and contains numerous vascular spaces. 3. Cosmine.
5
The Skull, Volume 2: Patterns of Structural and Systematic ...
"True" enamel and cosmine occur in the most primitive actinistian (Cloutier 1991a
), whereas cosmine is lost in all other actinistians, many lineages of rhipidistians,
and tetrapods, and within dipnoans. The pore-canal system, a specialized ...
James Hanken, Brian K. Hall,
1993
6
Devonian Osteolepiform Fishes from East Greenland
It is interesting that the area (od.Sbm) along the lateral margin overlapped by
submandibulars 1-7, in its medial part (od.fr) is moderately depressed and
covered by cosmine. This area widens posteriorly and forms a delimited
depression (od.
7
The biology and evolution of lungfishes
A discussion of the dermal skeleton in lung- fishes must focus on one such
combination of tissues, cosmine, because the presence of cosmine has often
been used as a diagnostic character for this group and has thus figured in
discussions of ...
William E. Bemis, Warren W. Burggren, Norman E. Kemp,
1987
8
Problems in vertebrate evolution: essays presented to ...
In a detailed study of the biology of cosmine in the Lower Permian osteolepid
rhipidistian Ectosteorhachis nitidus Cope, it was found (Thomson, 1975) that a
complete covering of cosmine on the dermal skeleton occurs only in younger
fishes ...
Sheila Mahala Andrews, Roger S. Miles, Alick Donald Walker,
1977
9
Origins of the Higher Groups of Tetrapods: Controversy and ...
Panderichthys is treated here as a separate terminal taxon, but this still leaves
osteolepiforms as problematic. When coding characters such as aspects of
cosmine, we have used the condition in Eusthenopteron (which does not have
cosmine) ...
Hans-Peter Schultze, Linda Trueb,
1991
Scales covered with a thick layer of cosmine. 4. Internal nostrils present. It is
divided into two orders : Order 1. Osteolepiformes (Extinct) 1. Two dorsal fins. Tail
fin heterocercal. 2. Paired fins lobate and of archipterygial type. 3. Scales
covered ...
Dr. M. C. Bhatnagar, Dr. Geeta Bansal
ACTUALITÉS CONTENANT LE TERME «COSMINE»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
cosmine est employé dans le contexte des actualités suivantes.
Golf: Carmel and Scarsdale win tri-matchs; more games
Cosmine Boether, 3&1; Lauren Fallen (Hk) d. Bridget Stanton, 5&4; Amanda Flock (Hk) d. Mandie Cummins, 2&1; HC Kaitlyn Shultis (HC) d. «The Journal News | LoHud.com, avril 15»