Choia
sp
Sponge with Peronopsis Trilobite
Sponge
and Trilobite Assemblage
Choia sp.
Class Demospongia, Subclass Ceractinomorpha, Order Monaxida, Family
Choiidae
Peronopsis sp
Order
Agnostida, Superfamily Agnostoidea, Family
Peronopsidae
Geological Time: Middle Cambrian
Locality: Wheeler Shale, Millard County, Utah
Credits: Prep: Jennifer
Holman;
Photo: John Adamek at Fossil Mall
The Wheeler Formation is known for its Burgess
Shale-like fauna.