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Title: The Cephalic Osteoderms of Varanus komodoensis as Revealed by High‐Resolution X‐Ray Computed Tomography
ABSTRACT

Osteoderms constitute a morphological system that plays an important role in squamate systematics. However, their study and visualization have always been difficult due to their isolated occurrence in the skin, among the first organs to be removed during the skeletonization process. High‐resolution X‐ray computed tomography (HRXCT) offers a nondestructive means of visualizing osteoderms both in their natural relationship to each other and to the underlying cranial bones. Although it is often stated thatVaranus komodoensishas a “chain mail” of osteoderms, this morphological system was never described in this taxon. Further, given its size, it might be expected thatV.komodoensiswould present the extreme of osteoderm development in extant varanids, a group that tends to have weakly developed osteoderms or none at all. Indeed, our HRXCT scan of a 19‐year‐old captive individual reveals an elaborate mesh of cephalic osteoderms that are incredibly numerous and morphologically diverse. We describe this skeletal system and compare it to the cephalic osteoderms in other varanoids. Anat Rec, 302:1675–1680, 2019. © 2019 American Association for Anatomy

 
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NSF-PAR ID:
10460612
Author(s) / Creator(s):
 ;  ;  ;  
Publisher / Repository:
Wiley Blackwell (John Wiley & Sons)
Date Published:
Journal Name:
The Anatomical Record
Volume:
302
Issue:
10
ISSN:
1932-8486
Page Range / eLocation ID:
p. 1675-1680
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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