Figure 1 in Ontogenetic development of the European basal aquatic turtle Pleurosternon bullockii (Paracryptodira, Pleurosternidae)

Figure 1. Shells of juvenile specimens of Pleurosternon bullockii (Paracryptodira, Pleurosternidae), from the Berriasian (Early Cretaceous) of Swanage (Dorset, England) (a, b, f), and detail of the carapace ornamentation of juvenile (c, e) and adult (d) individuals. (a–c) NHMUK 48262, shell in dorsal (a) and ventral (b) views, as well as detail of the ornamentation of the nuchal (c). (d) Detail of the ornamentation of the nuchal of NHMUK OR 28618 (see fig. 3B in Guerrero and PØrez-García, 2021). (e) Detail of the ornamentation of the central area of the carapace of NHMUK 48263a (see Fig. 2a). (f) NHMUK 48345, in dorsal view. Scale bars equal 2 cm in (a), (b) and (f) and 1 cm in (c)–(e).