Search results for: 'river ones good'

A LARGE, Top Quality, Triceratops horridus toe bone (pes digit) from the late Cretaceous of northern North America. Triceratops was a large ceratopsian dinosaur found in the Hell Creek and Lance Creek formations which is know for three horns and the large frill protecting its neck. This is an excellent toe bone with excellent detail preserved and good color / patina. This is the large toe II - digit 1 bone. You can see the "mushroom" appearance of proximal ends which is a characteristic of Triceratops and distinguishes it from a Hadrosaur toe bone. Triceratops bones are more difficult to find. Minor crack fill. No repair or restoration. Legally collected on private land in Powder River Co., Montana. Authenticity guaranteed. A supplemental shipping charge will apply for international orders.

DC35         SIZE: 4-3/4" long x 4-1/2" wide x 1-3/4" height

Note - Adding 15 new Triceratops bones in September 2025.       Link to Triceratops fossils catalog

A Top Quality, Rare Pachychephalosaurus wyomingensis head spike from the late Cretaceous of northern North America. Pachychephalosaurus is the dinosaur which is famous for its large domed head surrounded by these spikes and nodes. These spikes and nodes were part of the Pachy skull. This juvenile Pachy skull spike has excellent color and patina. Note the large blood grooves in the bone. It is a complete skull spike specimen. Note - the very tip was professionally restored. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. An excellent collector's quality Pachychephalosaurus node. You don't see these skull pieces very often. Authenticity guaranteed.

DP36       SIZE: 7/8"  (1/2" wide)   

Note - Adding 13 new Pachy spikes, claws, and teeth in April 2023.   Link to Pachy fossils catalog

A LARGE Top Quality, Rare Pachychephalosaurus wyomingensis spike from the late Cretaceous of northern North America. Excellent articulation. This is a large neck spike with deep blood grooves. Pachychephalosaurus is the dinosaur which is famous for its large domed head surrounded by these spikes and nodes. These spikes and nodes were part of the skull. This spike has excellent color / patina. It is a complete specimen with no cracks or breaks. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. An excellent collector's quality Pachychephalosaurus spike. You don't see these skull pieces very often. No repair or restoration. Authenticity guaranteed. My largest Pachy  neck spike.

DP39       SIZE: 2-5/16"   (1-1/16" W) 

Note - Adding 6 new Pachy spikes / teeth in February 2025      Link to Pachy fossils catalog

A RARE, Top Quality Acheroraptor temertyorum (raptor) tooth from Montana. Acheroraptor temertyorum is one of two recently described Hell Creek Fm. raptors, and it is a close relative of Velociraptor. This tooth is 3/8" which is a typical size. The enamel is excellent with a great brown color. Multiple prominent longitudinal "ribs" run the length of the crown. Excellent large posterior and small anterior serrations. See unique crown characteristic discussion below. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Note - the 2013 Acheroraptor description paper is available upon request. Authenticity guaranteed. This is your chance to own a rare, top quality Acheroraptor temertyorum tooth.  Note - A gem jar will be included as photographed.

DR08       SIZE: 3/8"

Note - Adding 10 new Acheroraptor teeth in February 2024      Link to Raptor (Dromaeosaur) catalog.

A LARGE RARE, Top Quality Acheroraptor temertyorum (raptor) tooth from Montana. Acheroraptor temertyorum is one of two recently described Hell Creek Fm. raptors, and it is a close relative of Velociraptor. A premaxillary or dentary front tooth. This tooth is 1/2" which is a large size. The enamel is excellent with a great brown color. Multiple prominent longitudinal "ribs" run the length of the crown. Excellent large posterior and small anterior serrations.  No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Note - the 2013 Acheroraptor description paper is available upon request. Authenticity guaranteed. This is your chance to own a rare, top quality Acheroraptor temertyorum tooth.  Note - A gem jar will be included as photographed.

DR03       SIZE: 1/2"

Note - Adding 10 new Acheroraptor teeth in May 2025      Link to Raptor (Dromaeosaur) catalog.

A VERY RARE rooted, High QualityTyrannosaurus rex tooth. This is an excellent rooted juvenile T-Rex rear tooth. Total length is is 2-1/4", the crown measures 3/4" and is thick 11/16". The rooted T-Rex  teeth are very rare. The enamel is good quality with some peeling. Fair anterior and posterior serrations with some wear. No cracks. T-Rex was the apex during the late Cretaceous with massive teeth capable of crushing its prey. See the detailed description to determine how to tell a real T-Rex tooth! Legally collected on private land in the Hell Creek Fm., Garfield Co., Montana.

DT12         SIZE: 2-1/4"  (3/4" Crown)  (~7/8" W)

An extinct early rabbit jaw (Palaeolagus haydeni) from Sioux Co., Nebraska. Palaeolagus 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.

WR24        Size: 1-1/8"  

Name: Palaeolagus haydeni 

Age:  Oligocene

Location: Sioux Co., Nebraska

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

An extinct early camel jaw (Poebrotherium wilsoni) from Sioux Co., Nebraska. Poebrotherium 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. 

WR08        Size: 1-7/8"  

Name: Poebrotherium wilsoni

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. 

WR36        Size: 13/16"  

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 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. 

WR35        Size: 7/8"  

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 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. 

WR34        Size: 1-1/4"  

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 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. 

WR33        Size: 1-3/8"  

Name: Leptomeryx evansi 

Age:  Oligocene

Location: Sioux Co., Nebraska

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