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始海百合類 - 動物化石 - Ascocystites drabowensis - 166 mm - 136 mm (沒有保留價)
編號 82717811
編號 82717811
Two Knightia Fish Fossil From The Green River Formation
Eocene Period- C. 50 Million Years Ago
Order to which the fossil belongs: Clupeifomes
Name of which the family belongs: Clupeidae
The Knightia fish comes from one of the world’s famous Laggerstatten, the Green River Formation in Wyoming, USA. It is the unusual chemistry of fossil lake that prevented decay and scavenging of dead organisms while layers of limestone matter slowly accumulated.
Nice definition of three the Knightia fish on a matrix of sub-oolitic limestone.
Matrix: 82mm x 100mm length
Knightia: 47mm – 55mm length