Suborder Plagiaulacida
This suborder contains the more basal multituberculates, from the
mid-Jurassic to the lower Cretaceous.
Overall, these multituberculates are different from later forms because
they have 3 upper incisors and four or five upper premolars; some still
have canines.
It is subdivided into three informal lineages:
- Allodontid
line. The third incisor of this line
is small.
- Paulchoffatiid
line. This line differs from the other two
because the molars have cusps of unequal height, and very large
incisors.
- Plagiaulacid
line. These have a more ornamented enamel and asymmetrical
lower molars, wider on the side of the mouth and shorter near the
tongue.
Family
Arginbaataridae
Which suborder this family belongs to is uncertain, but it is
associated with the Plagiaulacida. It is different from all other
multituberculates because it has a very large fourth premolar.
Back to Major subgroups
Suborder
Palgiaulacida Suborder
Cimolodonta
Homepage
| Characters
and
Anatomy | Palaeobiology
| Major Subgroups | Fossil Record
| Modern
Forms | Literature
and web links
Author: Aude Caromel
Last updated: 20/11/06
Return
to Fossil groups home page
Websites
produced by students
on the MSc
Palaeobiology programme in the Department
of Earth Sciences at the University of Bristol for academic
year 2006-7
