Illuminating the dark mess of fibers: Application of circular cross polarized light in unravelling the bone tissue structure of the dermal pectoral girdle of Metoposaurus krasiejowensis.

ABSTRACT: Current understanding of the histology of the dermoskeleton of tetrapods comes from fossilized and recent remains of skulls, osteoderms, carapace, plastron and other postcranial material which were always investigated using linear cross polarized light (LCPL) microscopy. The pectoral girdle of vast majority of non-amniote tetrapods, including temnospondyls evolved large ventrally located dermal bones- the interclavicle and a pair of clavicles. Despite that, there is a lack of information about the bone tissue structure from these postcranial dermal bones. This study used circular cross polarized light (CCPL) to investigate the bone tissue composition and structure from the pectoral dermoskeleton of Metoposaurus krasiejowensis, a Late Triassic temnospondyl known to have evolved massive pect

SUBMITTER: Kalita S 

PROVIDER: S-EPMC12397061 | biostudies-literature | 2025 Sep-Oct

REPOSITORIES: biostudies-literature