수량을 선택해주세요.
일반명 : 고생대 원시경골어류화석 (Primitive osteichthyan-bony fish)
학명 : Paramblypterus duvernoyi
Phylum Chordata; Infraphylum Gnathostomata; Superclass Osteichthyes; Class Actinopterygii (ray finned fishes); Paleonisciformes; Family Amblyppteridae
시대 : 고생대 폐름기(Lower Permian 280 million years ago)
Size: 150 mm long, Matrix : 300 mm by 190 mm
지층 : : Jeckenbach Formation
원산지 : Rotleigendes (Red Beds), Odernheim, Germany
내용 : The Paramblypterus duvernoyi species fish was a primitive osteichthyan (bony fish) and a member of the actinopterygians or ray-finned fish. Now extinct, Paramblypterus possessed some very primitive features, most notably, its shark-like tail with a fleshy upper lobe.
This is a very well preserved example of a Paleoniscoid fish known as Parmablypterus. The paleoniscoids were the first ray-finned fish, a feature readly seen here. Some 40 or more families appeared during the Carboniferous and Permian Periods. This genus went extinct during the Lower Permian. Notice the details in the rhombic scales and the heterocercal (longer top lobe) caudal fin. The only restoration is to the top of the head. Specimens are no longer being quarried from the region
