Yahatinda Formation

The Yahatinda Formation is a geologic formation from Alberta containing fossils dated to the Devonian, specifically the late Givetian. The formation is largely made up of dolostones and dolomite though there are breccias and conglomerates located towards the based on the formation. It overlies the Cairn Formation and Flume Formation while underlying the Eldon Formation. Not many fossils have been found within the Yahatinda Formation though placoderms, lobe-finned fish, and jawless fish have been found. Two distinct environments are preserved within the formation being a river and coastal marine environments. The strata that suggest a river or delta environment are generally found in older layers of the formation than the marine beds.