|  Description:
This is the oral disc of the “Terror Of The Cambrian”,
Anomalocaris saron, seen here in the first example I have had.
The
members of this group of enigmatic creatures are known from Asia,
Australia,  Europe,
and North America, and are thought by many to be closely allied
with the Arthropda, a position not held by all researchers. Several
have been described from Utah, notably a 50 mm partial specimen
of A nathorsti from the Marjum Formation, but they are far more
rare than those from the Chengjiang
Maotianshan Shales or
the Burgess Shale. Many examples
of Elrathia have been found with bite marks, most typically on
the right side, which are thought to have been the result of an
abortive
attack by this Cambrian raider.
See
a putative Anomalocaris
nathorsti Fossil from the Utah Weeks Formation
Also see: Cambrian
Explosion Fossils of Utah
|
