English Wikipedia - The Free Encycl...
Download this dictionary
Agnostida
Agnostida
is an
order
of
arthropod
which first developed near the end of the
Early Cambrian
period and thrived during the Middle Cambrian. They are present in the
Lower Cambrian
fossil record along with
trilobites
from the
Redlichiida
,
Corynexochida
, and
Ptychopariida
orders. The last agnostids went
extinct
in the Late
Ordovician
.
See more at Wikipedia.org...
© This article uses material from
Wikipedia
®
and is licensed under the
GNU Free Documentation License
and under the
Creative Commons Attribution-ShareAlike License