Although we are starting to understand the molecular basis of shell development based on
the study of cryptodires, basic comparative ontogenetic data for the other major clade of …

Generally, the bony armor of reptiles consists of separate osteoderms which develop in the
dermis independently from the internal skeleton. Such a dermal armor is characteristic of …

The embryonic and postembryonic development of the bony shell in Trionyx sinensis
(Trionychidae) is observed. There are two main types of ossifications in trionychid armor, like …

The pectoral apparatus (shoulder girdle plus sternum) of amniotes plesiomorphically
includes an unpaired element of dermal origin. In crocodylians, lepidosaurs, and nontherian …

With aim to report the ontogeny of the osseous elements of the carapace in Peurodiras, 62
embryos and 43 nestlings of Podocnemis expansa were collected and submitted to the …

Testudinata comprises all crown-group turtles, the Testudines, as well as the stem group,
with the oldest representatives from the Triassic period. The turtle body plan is unique …

The turtle shell represents a unique transformation of the ancestral tetrapod body plan. The
homologies of its approximately 50 bones have been the subject of debate for more than …

Researches on the ontogeny of turtles (Emys orbicularis and Testudo graeca) lead to
reconsider the problem of the shell elaboration. Precise observations on the development of …