Description:
These 50 million year old, Eocene-Era fossil fish come from one
of the world's famous Laggerstatten, the Green River Formation
in Wyoming. A small portion of the fish fossils from Green River
exhibits such fine preservation. The significant extent of soft-tissue
preservation that makes the site famous is evident in these specimens.
These
fine fish are Diplomystus dentatus. Early workers proposed that
this fish was closely related to Knightia, an incorrect assumption,
as Diplomystus is not even placed within the same Order. Diplomystus
has the body form and mouth placement of a surface feeder, and
is thought to have been a predator of smaller surface-feeders
such as Knightia. Indeed, specimens of Diplomystus have been found
with Knightia lodged in their mouths, a classic demonstration
of a predator caught by its prey!
Name:
Order: Ellimmichyiformes: Family; Ellimmichthyidae; Diplomystus
dentatus
Age: Eocene
Location: Green River Formation, Fossil Lake, Kemmerer, Wyoming
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Size:
92 mm in length on a 145 mm by 93 mm matrix
Code GRF06 - Sold |
Size:
110 mm in length on a 171 mm by 96 mm matrix
Code GRF08 - $55 |
Size:
104 mm in length on a 130 mm by 90 mm matrix
Code GRF11 - $60 |
Size:
82 mm in length on a 110 mm by 57 mm matrix
Code GRF12 - $35 |
Size:
92 mm in length on a 120 mm by 77 mm matrix
Code GRF13 - $50 |
Size:
112 mm in length on a 128 mm by 95 mm matrix
Code GRF14 - $60 |
Size:
81 mm in length on a 122 mm by 66 mm matrix
Code GRF15 - Sold |
Size:
91 mm in length on a 139 mm by 90 mm matrix
Code GRF16 - $50 |
Size:
95 mm in length on a 112 mm by 62 mm matrix
Code GRF17 - $45 |
Size:
102 mm in length on a 142 mm by 70 mm matrix
Code GRF18 - $55 |
Size:
94 mm in length on a 125 mm by 80 mm matrix
Code GRF19 - $45 |
Size:
90 mm in length on a 137 mm by 90 mm matrix
Code GRF20 - $50 |
