Pseudonotictis chubutensis differs from
Pseudonotictis pusillus, the
type species, in that the former is smaller than the latter.
P. chubutensis also has a relatively smaller trigon on its
M2 than does
P. pusillus. In
P. chubutensis, the preparacrista is only minimally developed and does not connect to the labial cingulum, unlike the strongly developed preparacrista seen in
P. pusillus. Also, the height differential between the paracone and
metacone is greater in
P. chubutensis than
P. pusillus. == References ==