-
Ptychopariida is a large,
heterogeneous order of
trilobite containing some of the most
primitive species known. The
earliest species occurred in the second...
-
diversified into the
major orders that
typified the Cambrian—Redlichiida,
Ptychopariida, Agnostida, and Corynexochida. The
first major crisis in the trilobite...
-
record along with
trilobites from the Redlichiida, Corynexochida, and
Ptychopariida orders, and were
highly diverse throughout the Cambrian. Agnostidan...
- on the
taxonomy and
localities of
Ordovician trilobites (Trilobita:
Ptychopariida: Illaenidae, Panderidae) of
Leningrad Region".
BarSU Herald. Biological...
- small. The
families of
Harpetida were
formerly included in the
order Ptychopariida, but were
recently given their own
order (Ebach &
McNamara 2002). The...
- and
planktonic forms like graptolites. The
trilobites Agnostida and
Ptychopariida completely died out, and the
Asaphida were much reduced. Brachiopods...
- event.
These typically small trilobites resemble those of the
order Ptychopariida, from
which the new
order Proetida was
separated in 1975 by
Fortey and...
- 2011.
Archived from the
original on 2020-11-12.
Retrieved 2023-01-21. "Order
Ptychopariida". A
Guide to the
Orders of Trilobites. Sam Gon III. 2009....
- Yunnanocephalidae,
although it is now
thought the
superfamily is
within the
Ptychopariida Agraulidae is a
family of
trilobites within the
superfamily Ellipsocephaloidea...
-
Diaphanometopidae are
thought to have been an
early transitional group between the
Ptychopariida ancestors and all
other Phacopina. Diaphanometopidae, are
found in the...
