The Cretaceous corals from the Bisbee Group (Sonora, Mexico; Late Barremian - Early Albian): suborder Heterocoeniina

Resumen

The current work constitutes the fourth part of the systematic revision of the corals from the Bisbee Group in Sonora, northwest

Mexico (Late Barremian to Early Albian) and deals with the suborder Heterocoeniina. Twelve species from three families are reported:

Carolastraeidae (genera Heteropistophyllum, Latusastrea, Pleurocoenia and Pleurodendron), Heterocoeniidae (genus Heterosmilia),

and Paronastraeidae (genus Tiarasmilia) are described and illustrated. The family taxon Carolastraeidae is applied instead of the prob-
lematic family taxon Elasmocoeniidae which was temporarily applied to Heterocoeniina with a bilateral septal symmetry. With the

exception of the genus Pleurocoenia, the genera are rare in the Cretaceous and do not show distinct palaeobiogeographic relationships.