Search results for: 'alteri 30 years line'

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 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.

WR42        Size: 1-3/16"  

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 extinct Oreodont jaw (Merycoidodon culbertson) from Converse Co., Wyoming. Merycoidodon culbertson  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. 

WR61       Size: 4-5/8"  long x 1-1/4" wide x 1-1/2" height

Name: Merycoidodon culbertson

Age:  Oligocene

Location: Converse Co., Wyoming

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

An ultra rare, Top Quality Alopias palatasi shark tooth, the extinct serrated Giant Thresher, from the Nottoway River, Virginia. A January Fossil of the Month. A Viriginia Red Site tooth with good copper-red color. Excellent preservation and condition. A Miocene tooth. These teeth are not commonly found and seen. A rare collectors' tooth in high quality condition. Try finding one of these teeth! Authenticity guaranteed. A large size red site tooth! I have seen less than ten in 30 years.

VA32           SIZE: 1"

Posting 3 rare Virginia shark teeth in January 2025.     Link to Virginia teeth.

An ultra rare, LARGE Top Quality Alopias palatasi shark tooth, the extinct serrated Giant Thresher, from the Nottoway River, Virginia. A January Fossil of the Month. This is a Virginia Red Site tooth with excellent copper-red color. Excellent preservation and condition. Perfect serrations. A Miocene tooth. These teeth are not commonly found and seen. A rare collectors' tooth in top quality condition. Try finding one of these teeth! Authenticity guaranteed. An extra large size red site tooth! I have seen less than ten Alopias palatasi in 30 years. 

VA31           SIZE: 1-9/16" 

Posting 3 rare Virginia shark teeth in January 2025.      Link to Virginia teeth.

A LARGE, Top Quality Tyrannosaur tooth from the late Cretaceous (Campanian) in northern North America. Please note that this tooth could Gorgosaurus or Daspletosaurus - see Detailed Discussion below. This tooth measures 2-1/4" - an excellent Tyrannosaur tooth. The enamel is high quality with excellent color. Anterior and posterior serrations are excellent. Serrated to the tip with small wear facet on tip and the side. Wide base. No crack, repair or restoration. Legally collected on private land in the Judith River Fm., Fergus Co., Montana. Probably an excellent Gorgosaurus or Daspletosaurus tooth based on size and roundness of the tooth cross-section. Authenticity guaranteed. An excellent collector's tooth. A Riker display frame is included.

DY02         SIZE: 2-1/4"  (15/16" wide)

Note - Added 14 new Tyrannosaur teeth in May 2024.       Link to Tyrannosaur teeth catalog.

An excellent Scaldicetus sp., a Sperm whale, tooth from Caldera area of Chile. An incredible late Miocene Sperm whale tooth from the Bahia Inglesa Fm. This tooth has great preservation, fantastic brown color, and clean from matrix. No repair or restoration. Authenticity guaranteed. Unfortunately there are no teeth coming from this site 19 years! 

C708        SIZE:  2-3/4"  

Note - Adding 16 Chilean Sperm whale fossils in March 2025. -> Link to Whale teeth.

A Top Quality Carcharodon hastalis, Broad-tooth "Mako", shark tooth - upper jaw anterior tooth from the "De Kuilen" sand pit, Mill, The Netherlands. This is a "Blue" layer tooth which are know for the highest preservation and best color - rarely seen outside of Europe. This tooth has excellent color and preservation. Sharp cutting edge. The age is late Miocene (approx. 6-8 million years ago). This species is the ancestor to the Great White shark and Carcharomodus escheri.. An excellent collector's tooth. Authenticity guaranteed.  

N115       SIZE: 1-7/16"

Note - Adding 10 Netherlands Carcharodon hastalis teeth in July 2023.  Link to Netherlands Hastalis teeth 

A Top Quality mammal coprolite (fossil dung). So detailed that is it hard to believe. Incredible preservation. It is Miocene age (approx. 20 million years ago) from the Wilkes Fm., Toledo, Washington. A very unique and fantastic gift item. Authenticity guaranteed. And they don't stink!

X004          SIZE: 1-3/4" x 1-1/16"

Note - 7 new coprolite fossils added in December 2025.       Link to coprolites.

An incredible sliced and polished Cleoniceras ammonite showing the intricate internal chamber structure with crystal lined pockets. Large crystal lined pockets. A gorgeous Cretaceous ammonite from Madagascar. The slightly polished exterior has a hint of "red flash". Authenticity guaranteed. A great gift item.     

X212       Size: 6"

Note - Adding 15 Madagascar ammonites in December 2025  -->   Link to Madagascar ammonites

An incredible sliced and polished Cleoniceras ammonite showing the intricate internal chamber structure with crystal lined pockets. Some pockets are crystal lined! A gorgeous Cretaceous ammonite from Madagascar. The slightly polished exterior has a hint of "red flash". Authenticity guaranteed. A great gift item.     

X219       Size: 3-3/4"

Note - Adding 15 Madagascar ammonites in December 2025  -->   Link to Madagascar ammonites

An incredible sliced and polished Cleoniceras ammonite showing the intricate internal chamber structure with crystal lined pockets. All pockets are crystal lined! A gorgeous Cretaceous ammonite from Madagascar. The slightly polished exterior has a hint of "red flash". Authenticity guaranteed. A great gift item.     

X215       Size: 4-5/16"

Note - Adding 15 Madagascar ammonites in December 2025  -->   Link to Madagascar ammonites