During the Mesozoic Period Diapsids Diverged into?

The diapsids diverged into two groups, the Archosauromorpha (“ancient lizard form”) and the Lepidosauromorpha (“scaly lizard form”) during the Mesozoic period (Figure 29.4. 3).

Are non avian reptiles amniotes?

The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by four extra-embryonic membranes. The amniotes include reptiles, birds, and mammals. ... Sauropsids can be further divided into anapsids and diapsids (crocodiles, dinosaurs, birds, and modern reptiles).

What feature distinguishes synapsid reptiles from diapsid reptiles?

The key differences between the synapsids, anapsids, and diapsids are the structures of the skull and the number of temporal fenestrae behind each eye ([link]). Temporal fenestrae are post-orbital openings in the skull that allow muscles to expand and lengthen.