Squatiniformes

Squatiniformes is an order of sharks belonging to Squalomorphi. It contains only a single living genus Squatina, commonly known as angelsharks. The oldest genus of the order, Pseudorhina is known from the Late Jurassic of Europe.<ref name=":1">Template:Cite journal</ref> Three other genera, Cretasquatina, Cretascyllium and Parasquatina are known from Cretaceous fossils from North America and Europe,<ref name=":0">Template:Cite journal</ref><ref>Template:Cite journal</ref> though the placement of Parasquatina in the order has been questioned.<ref name=":1" /> All living and extinct members of the order share a similar body morphology<ref name=":0" /> with a highly flattened body with enlarged pectoral and pelvic fins suggestive of a bottom-dwelling ambush predator ecology.<ref>Template:Cite journal</ref> Teeth have been assigned to the modern genus from the Late Jurassic onwards, but the actual genus assignment of many of these species is unclear.<ref name=":0" /> The earliest records that can be assigned with confidence to the modern genus are known from the Early Cretaceous (Aptian) of England.<ref name=":1" />