chondrocranium


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Related to chondrocranium: dermatocranium, splanchnocranium, desmocranium

chon·dro·cra·ni·um

 (kŏn′drō-krā′nē-əm)
n. pl. chon·dro·cra·ni·ums or chon·dro·cra·ni·a (-nē-ə)
1. The cartilaginous cranium of an embryo before ossification.
2. A portion of the embryonic cranium forming the bones of the base of the skull and eventually undergoing ossification.

chondrocranium

(ˌkɒndrəʊˈkreɪnɪəm)
n
the cartilaginous structure that, in early development, envelops the brain
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References in periodicals archive ?
Regarding African species, Skinner (1973) described the ontogenetic and adult morphology in Trachylepis capensis skull, whereas Rao & Ramaswami (1952) described the fully formed chondrocranium and the adult osteocranium of the Asian Eutropis carinata.
In addition, the chondrocranium of Mabuya is compared with the species of the old world Trachylepis capensis and Eutropis carinata, therefore, these morphological studies could provide additional anatomical characters to support the taxonomic status of this American clade as monophyletic.
It is named chondrocranium since most of its bones are made up of cartilage and ossify by the process of endochondral ossification [1].
He distinguished it from the other genera in the family Scyliorhinidae by the presence of a supraorbital crest on the chondrocranium and the lack of upper and lower labial furrows.
chondrocranium, teeth and patches of skin 20 Long Inlet, Graham 53[degrees]12'N, 16 Dec.
This primitive arrangement of chondrocranium and gill arches forms the basis of the skull in all jawed vertebrates.
However, systematic deposits of calcium phosphate have also been found in chondrocranium, jaws, visceral arches, fin cartilage, claspers, neural and haemal arches (Clement, 1992).
Decomposition of beached carcasses is accompanied by erosion of the caudal fin and sloughing of the head, leaving a long bony "tail" and a small chondrocranium "head" (Scott and Scott, 1988).
The chondrocranium of the embryo was evidently damaged and foreshortened by the general compression of its snout.