ammonites
Ranasasus colossus Loch 2007 (trilobite)

Trilobita - Proetida - Bathyuridae

Full reference: J. D. Loch. 2007. Trilobite biostratigraphy and correlation of the Kindblade Formation (Lower Ordovician) of Carter and Kiowa Counties, Oklahoma. Oklahoma Geological Survey Bulletin 149:1-154

Belongs to Ranasasus according to J. D. Loch 2007

Sister taxa: Ranasasus brevicephalus, Ranasasus conicus

Type specimen: UMC 17015, a cephalon/head (cranidium)

Ecology: fast-moving low-level epifaunal deposit feeder