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Ossification Pattern in Forelimbs of the Siamese Crocodile (Crocodylus siamensis): Similarity in Ontogeny of Carpus Among Crocodylian Species
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SYSNO ASEP 0493019 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Ossification Pattern in Forelimbs of the Siamese Crocodile (Crocodylus siamensis): Similarity in Ontogeny of Carpus Among Crocodylian Species Author(s) Gregorovičová, Martina (FGU-C) RID, ORCID, SAI
Kvasilová, A. (CZ)
Sedmera, David (FGU-C) RID, ORCID, SAISource Title Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology. - : Wiley - ISSN 1932-8486
Roč. 301, č. 7 (2018), s. 1159-1168Number of pages 10 s. Language eng - English Country US - United States Keywords embryo ; hand ; limb development ; morphology ; skeleton Subject RIV FP - Other Medical Disciplines OECD category Anatomy and morphology (plant science to be 1.6) R&D Projects GA16-02972S GA ČR - Czech Science Foundation (CSF) Institutional support FGU-C - RVO:67985823 UT WOS 000443189900004 EID SCOPUS 85042361545 DOI 10.1002/ar.23792 Annotation Crocodylians have highly derived elongated carpus, which is related to their use of forelimbs in many types of gaits as well as in burrowing. The objective of present study was to describe the ossification of the forelimb in five stages of Siamese crocodile (Crocodylus siamensis). The ossification begins approximately at stage 20 in arm and forearm bones moving sequentially to the metacarpal elements. The first carpal elements with ossification centers are radiale + intermedium and ulnare (stage 22–23), and their ossification mode is typical of long bones. Between stages 22 and 24 distal carpals 3, 4, and 5 fuse together to a single formation. In the stage 25, the ossification proceeds to the pisiform, which starts ossifying late during the embryogenesis. The phalangeal formula of the digits is 2,3,4,5,3. Although there are some interspecific differences, it appears that all crocodylians have similarly uniform skeletal pattern, the process of ossification, number of carpal elements and phalangeal formulas probably due to their similar lifestyles. Workplace Institute of Physiology Contact Lucie Trajhanová, lucie.trajhanova@fgu.cas.cz, Tel.: 241 062 400 Year of Publishing 2019
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