The postdentary trough is a skeletal feature seen in Mesozoic mammals. It is found on the inside of the lower jaw (dentary), at the back behind the molar...

boreosphenidans, the mandibular angle is placed posteriorly and the primitive postdentary trough (hole in the mandible) is absent (in contrast to Kuehneotheriidae...

mammals and some fossil relatives. It is characterized by the loss of a postdentary trough and a widened braincase. †Hadrocodium †Kuehneotherium Crown-group...

other known crown mammals, they retained postdentary bones as shown by the presence of a postdentary trough. The extant members (monotremes) developed...

the rear and merges with the postdentary trough (the groove which hosts the postdentary bones). The postdentary trough slopes upwards and is divided...

bones in the jaw, known as postdentary elements, are still connected to the dentary and lie within a groove (the postdentary trough) in the rear part of the...

middle ear bones were not attached directly to the dentary, and a postdentary trough for the attachment of these bones was therefore absent. Unlike in...

end of the dentary, there was a depression known as the postdentary trough, where the postdentary bones (homologous to some of the middle ear bones of modern...

from the non-monotreme Ausktribosphenida by having more developed postdentary trough. Its dental formula has been reconstructed as: p4, m3 (four premolars...

retained one of their postdentary bones: the articular. There is a trough at the back of the jaw on the inside (lingual) where the postdentary bones sat. The...

occurred in two steps. A partial middle ear formed by the departure of postdentary bones from the dentary, and happened independently in the ancestors of...