In fact, several placodont taxa exhibit procumbent, elongate teeth on the premaxilla, that is, Paraplacodus, Placodus, Protenodontosaurus and, to a lesser degree, Cyamodus hildegardis 4.

A study was made of cambial activity, the localization of storage starch around the cambium, and the localization and occurrence of microtubules in cambial cells from dormancy to reactivation in ...