Eocene Green River Gyrocarpus P-GRP2-16-29b Cricket There are two rows of

There are two rows of well-defined tubercles on the flanks

This slab is 8 inches by 8

The specimen has a nearly complete body chamber and some sutures are visible

and floodplain rocks deposited in a back-arc basin formed inland of a Late Triassic magmatic arc associated with the subduction zone off the west coast of North America

Eocene Green River Gyrocarpus P-GRP2-16-29b Cricket There are two rows ofGyrocarpus sp. Green River Formation Middle Eocene Lincoln County, Wyoming This is a very fine example of the fossil laurel relative Gyrocarpus. The specimen seen here has marvelous detail. The leaf is actually complete but one of the lobes is folded over and it appears missing. The venation is distinct and the leaf is a large 17 cm not counting the stem. This example from our collection is museum quality. This specimen was collected from the 18 inch