Allometry and morphological integration in the skull of Tupinambis merianae (Lacertilia: Teiidae)
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
01/11/1997
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Resumo |
The morphogenetic processes acting in the skull of the lizard Tupinambis merianae were investigated by geometric morphometric techniques. The observed ontogenetic shape change involved a widening of the anterior extremity, stretching and narrowing of the midface, narrowing of the braincase, orbital reduction and elongation of the temporal region (origin of jaw adductor muscles). This change occurred mostly in a localized way in certain cranial regions. The major components identified were: rostrum, midface, dermal elements of braincase (functionally influenced) and endochondral elements of braincase (embryologically influenced). The growth patterns lead to an increased robustness of the skull (particularly the anterior extremity) and a reduction of cranial kinesis. These changes, together with the ontogenetic variation in dentition aid in the ontogenetic variation observed in the diet of these animals, which shift from carnivory to omnivory. |
Formato |
397-405 |
Identificador |
http://dx.doi.org/10.1163/156853897X00440 Amphibia Reptilia, v. 18, n. 4, p. 397-405, 1997. 0173-5373 http://hdl.handle.net/11449/65217 10.1163/156853897X00440 2-s2.0-0009573068 |
Idioma(s) |
eng |
Relação |
Amphibia Reptilia |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |