RARE Triassic Coelacanth Fish Fossil

Guizhoucoelacanthus guanlingensis

Class Sarcopterygii, Order Coelacathiformes, Family Whiteiidae

Geological Time: Middle Triassic

Size (25.4 mm = 1 inch): Fish fossil is 105 mm (tip of nose to tip of tail along backbone) Matrix: 125 mm by 185 mm

Fossil Site: Guanling Formation, Luoping County, Yunnan Province of China

Fossil Code: CF488

Price: Sold

Guizhoucoelacanthus guanlingensisDescription: Just described in 2006, this is a rare coelacanth known as Guizhoucoelacanthus, which was erected on the basis of a single specimen and assigned to the Coelacanthidae. In 2009 another better preserved specimen was found that allowed for additionGuizhoucoelacanthus Fossil Art study which placed it in the family Whiteiidae. There are at present some five different species of coelacanths known from China spanning from the Upper Permian to the Upper Triassic. This one is a juvenile some 25% the size of the largest known example. It shows most of the diagnostic features of coelacanths, including the rhomboid three lobed tail with supplementary lobe (tassel). I have included a full skeletal reconstruction to make understanding the features seen here more clear. To my knowledge this taxon has never been offered before.

Vertebrata PalAsiatica, (7), pp165-177, 2009

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