Grandagnostus sp, Largest Known Agnostid Trilobite

Trilobites Order Agnostida , Suborder Agnostina, Superfamily Agnostoidea, Family Agnostidae, Subfamily Incertae Sedis
Geologic Age: Middle Cambrian
13 mm
Upper Fauna, Cassis or Agra Zone, Christmas Hills, Smithton, Tasmania, Australia
Remarks: Trilobite size varied considerably as a primary evolutionary trend. This is the largest trilobite within order Agnostida.

Also see: Australian Trilobites

 

 

 

 

 

 

Grandagnostus, Largest Known Agnostid Trilobite