1 Talk Squatina subserrata Edit Fossil Record Added by Meghunter99 Squatina subserrata is the angel shark species currently used for teeth from the Lee Creek Pungo River Formation. This article is a stub. You can help Fossil Wiki by expanding it. Read more Cosmopolitodus planus Protolamna sp. Xenacanthidae is a family of prehistoric sharks in the order Xenacanthida. Xenacanthidae Related Categories Categories: Sharks | Article stubs Add category