The fossil represents a mass mortality plate containing several fossil fish of the species Gosiutichthys parvus as found in the Green River Formation in the south west of Wyoming. The mass presence of these fish leads to think that the fish where trapped in a mud puddle that ultimately dried out. Even while the preservation is very different compared to the fish from the Fossil Lake deposites there is no doubt these fish originate from the Green River formation. The fish were found in the Lake Gosiute deposits. This plate is the biggest section we ever recovered and has fish on both sides.

Gosiutichthys parvus

Eocene, Green River Formation (48 mil. y.)

Rock Springs, Wyoming, USA

690 x 470 mm - 27.2" x 18.5"

Very good