Coosella
sp.nov. (Coosella Type I)
Class
Trilobita; Trilobite Order
Ptychopariida; Suborder Ptychopariina; Superfamily Ptychoparioidea;
Family Crecicephalidae
Geological
Time: Middle Cambrian
Size: 40
mm long by 30 mm wide on a 170 mm by 200 mm matrix
Fossil
Site: Weeks Formation, Millard County, Utah
|  This
trilobite is a rare member of the family Crecicephalidae known as
Coosella Type I. It has not as yet been sceientifically described,
so the species has not yet been named. It differs from another from
the region, known as Coosella Type 2 by virtue of a straighter thoracic
profile and wider pygidium.
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