Mammal Teeth & Fossils

An extinct early ground squirrel jaw (Ischyromys sp.) from Sioux Co., Nebraska. Ischyromys was one of many mammals that thrived in the Early Oligocene in North America. Found in the Brule Fm. (Rupelian) 33 - 30 million years ago. A very well preserved specimen. No repair or restoration. Authenticity guaranteed. This item comes with a 2"x 2" floating frame display.

WR11        Size: 1-1/8"  

Name: Ischyromys sp. 

Age:  Oligocene

Location: Sioux Co., Nebraska

Note - Posting 49 Oligocene Mammal fossils in January 2025.      Link to Oligocene Mammal Fossils

An extinct early Deer-like Ruminant jaw (Leptomeryx evansi) from Sioux Co., Nebraska. Leptomeryx was one of many mammals that thrived in the Early Oligocene in North America. Found in the Brule Fm. (Rupelian) 33 - 30 million years ago. A very well preserved specimen. No repair or restoration. Authenticity guaranteed. 

WR31        Size: 1-3/4"  

Name: Leptomeryx evansi 

Age:  Oligocene

Location: Sioux Co., Nebraska

Note - Posting 49 Oligocene Mammal fossils in January 2025.      Link to Oligocene Mammal Fossils

An extinct early Dog-like Canid jaw (Hesperocyon gregarius) from Sioux Co., Nebraska. Hesperocyon gregarius was one of many mammals that thrived in the Early Oligocene in North America. Found in the Brule Fm. (Rupelian) 33 - 30 million years ago. A very well preserved specimen. No repair or restoration. Authenticity guaranteed. This item comes witha 2"x 2" floating frame display.

WR44        Size: 7/8"  

Name: Hesperocyon gregarius

Age:  Oligocene

Location: Sioux Co., Nebraska

Note - Posting 49 Oligocene Mammal fossils in January 2025.      Link to Oligocene Mammal Fossils

An extinct early Dog-like Canid jaw (Hesperocyon gregarius) from Sioux Co., Nebraska. Hesperocyon gregarius was one of many mammals that thrived in the Early Oligocene in North America. Found in the Brule Fm. (Rupelian) 33 - 30 million years ago. A very well preserved specimen. No repair or restoration. Authenticity guaranteed. This item comes witha 2"x 2" floating frame display.

WR43        Size: 1-1/8"  

Name: Hesperocyon gregarius

Age:  Oligocene

Location: Sioux Co., Nebraska

Note - Posting 49 Oligocene Mammal fossils in January 2025.      Link to Oligocene Mammal Fossils

An extinct early Running Rhinoceras jaw (Hyracodon nebraskensis) from Sioux Co., Nebraska. Hyracodon nebraskensis was one of many mammals that thrived in the Early Oligocene in North America. Found in the Brule Fm. (Rupelian) 33 - 30 million years ago. A very well preserved specimen. No repair or restoration. Authenticity guaranteed. 

WR54       Size: 2-1/8"  

Name: Hyracodon nebraskensis

Age:  Oligocene

Location: Sioux Co., Nebraska

Note - Posting 49 Oligocene Mammal fossils in January 2025.      Link to Oligocene Mammal Fossils

An extinct early Running Rhinoceras jaw (Hyracodon nebraskensis) from Sioux Co., Nebraska. Hyracodon nebraskensis was one of many mammals that thrived in the Early Oligocene in North America. Found in the Brule Fm. (Rupelian) 33 - 30 million years ago. A very well preserved specimen. No repair or restoration. Authenticity guaranteed. 

WR53       Size: 3-1/4"  

Name: Hyracodon nebraskensis

Age:  Oligocene

Location: Sioux Co., Nebraska

Note - Posting 49 Oligocene Mammal fossils in January 2025.      Link to Oligocene Mammal Fossils

A TOP QUALITY, Dolphin tooth from the Bahia Iglesa Fm. of central Chile. Gorgeous color and preservation. A long beak species. Complete tooth. Species #5 - flat sided crown and root. A rare species. Perfect tooth. Authenticity guaranteed.

C923        Size: 11/16"

Note - Adding 32 Dolphin teeth / ear bones in March 2025.  Link -> Chilean Dolphin fossils

A TOP QUALITY, Dolphin tooth from the Bahia Iglesa Fm. of central Chile. Gorgeous color and preservation. Complete tooth. Type #2 - Conical crown and  a broad pinched root. A rare species. Near Perfect tooth. Authenticity guaranteed.

C920        Size: 11/16"

Note - Adding 32 Dolphin teeth / ear bones in March 2025.  Link -> Chilean Dolphin fossils

A Top Quality, Large Dolphin ear bone from middle Miocene Sharktooth Hill area. Excellent preservation. Great color. An excellent collector's Dolphin ear bone. Authenticity guaranteed. 

ST487              SIZE: 1-1/8" x 11/16"

Note - Adding 13 Sharktooth Hill Dolphin items in July 2019.    -->     Link to STH Dolphin items

A Top Quality, Large Dolphin ear bone from middle Miocene Sharktooth Hill area. Excellent preservation. Great color. An excellent collector's Dolphin ear bone. Authenticity guaranteed. 

ST488              SIZE: 1-1/8" x 11/16"

Note - Adding 13 Sharktooth Hill Dolphin items in July 2019.    -->     Link to STH Dolphin items

An EXTRA LARGE, Top Quality Dophin tooth (XL design) from the Lee Creek mine, Aurora, No. Carolina. This is a near complete rooted tooth. Excellent preservation and color. It is a Miocene tooth from the Pungo River Fm. An excellent collector's tooth. Authenticity guaranteed. 

LC856      Size: 1-7/8"

Note - Adding 22 new Lee Creek dolphin fossils in March 2023.     Link to Lee Creek Dolphin fossils.   

A Top Quality Squalodon sp. tooth, Miocene toothed whale, from the Lee Creek mine, Aurora, No. Carolina. This is a complete canine crown. Excellent preservation and color. It is a Miocene tooth from the Pungo River Fm. An excellent collector's tooth. Authenticity guaranteed. Complete whale teeth are very difficult to find!

LC907      Size: 1-1/4"

Note - Adding 15 new Lee Creek Whale fossils in March 2023.     Link to Lee Creek Whale fossils.