New symmetrodont mammal found from the Early Cretaceous of China
Monday, June 20, 2016 - 07:01
in Paleontology & Archaeology
Mesozoic mammals with molariform teeth bearing a simple, triangular arrangement of principal cusps were traditionally assigned to the Order Symmetrodonta. Phylogenetic analyses imply that this grouping is artificial, with the symmetrodont molar pattern representing a structural grade that evolved multiple times.