(from the article `sauropterygian`) Formerly considered a subgroup of Sauropterygia are the placodonts of the Middle Triassic Period (242 million to 227 million years ago). Their bodies ... ...placed nostrils, and a highly modified palate (pterygoids and often palatines are joined in the midline). Limbs paddle-like in advanced ... [2...
Found on
http://www.britannica.com/eb/a-z/p/75
(pronounced PLAK-uh-dont) Placodonts meaning plate-like or flat teeth) were chunky, relatively-sedentary marine reptiles that lived in shallow seas during the Triassic period , going extinct at the end of the Triassic. Many of these sauropterygian diapsids had turtle-like shells (dermal armor) and sprawling legs. Placodonts ate shellfish which were...
Found on
http://www.enchantedlearning.com/subjects/dinosaurs/glossary/
No exact match found.
