Eocene (52.3 Million Years Ago)
Green River Formation, Wyoming, USA
In Stone Fossils Private Quarry
Plate size approx: 33.75" x 33" x 1"
Undescribed Leaf approx: 3.5", stem 16.5"
The Juvenile Diplomystus dentatus on this plate was inlaid into the host matrix for decor purposes. The adult Diplomystus and undescribed leaf specimen were naturally found on this large plate.
Minimal restoration was performed on each of the fish's fin tips, we provide full disclosure on all restorative procedures on all our specimens.
The undescribed Leaf did not require any restoration, it's coloring and detail is completely left alone as we found it.
Due to the size of this specimen, it will be shipped in an internationally compliant wooden crate. The plate itself is backed with 3/4" plywood for durability and easy wall hanging, a french cleat hanging system is included as well.
Please contact us prior to purchase for a specific shipping rate. You may choose in-store pickup to cut your shipping costs all together and pick up your specimen in person. You can pick up from our store location in Kemmerer, Wyoming, or we deliver to both the Denver Gem & Mineral show in the Fall and the Tucson Gem & Mineral show in the winter. For any questions, please don't hesitate to contact us directly.
Ray-finned Fish - Diplomystus dentatus
Order Ellimmichthyiformes, Family Paraclupeidae
The last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.
D. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.
This species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.