Search results for: 'boni fossil'

A rare EXTRA LARGE, Top Quality Triceratops horridus occipital condyle with brain case attached 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 a beautiful 4-1/2" occipital condyle with exceptional detail preserved. This large codyle has fantastic color and patina plus a large section of braincase is attached. Note - The occipital condyle was the connection point of the Triceratops massive skull to the vertebrae column, and it allowed for maximum rotation of the head. No repair or restoration. 100% natural specimen. Legally collected on private land in Powder River Co., Montana. Authenticity guaranteed. Note - This massive bone structure weighs 14 pounds. An international shipping supplement is required. Please inquire.

DC53  BoP    SIZE: 4-1/2" Condyle diameter ;  Specimen size: 11" x 6-1/2" wide

Note - Adding 20 new Triceratops bones in July 2022.       Link to Triceratops fossils catalog

A Top Quality, Rare Pachychephalosaurus wyomingensis spike from the late Cretaceous of northern North America. An April Fossil of the Month. A complete spike with excellent articulation. 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 spike has exceptional color / patina. The blood grooves are still present in the bone. It is a complete specimen with no cracks or breaks. Note - the excellent articulated skull surface on the base of the spike. 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 BEST Pachy spike remaining from the "Rancher's collection"!

DP31       SIZE: 1-5/8" Height   (Base: 2" x 1-3/8") 

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

An ULTRA RARE Pachychephalosaurus wyomingensis skull section from the late Cretaceous of northern North America. A February Fossil of the Month. This is a post orbital skull section covered with 12+ spikes. 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 skull section has exceptional color and patina. Note the incredible blood grooves in the bone. It is a complete specimen with no cracks or breaks. Legally collected on private land in the Lance Creek Fm., Niobrara Co., Wyoming. An exceptional collector's quality Pachychephalosaurus skull section. You don't see these skull pieces very often. Two spike tips are repaired. Authenticity guaranteed. A very special Packy skull section display piece. 

DP37       SIZE: 5" x  2" wide x  2" height  

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

The book provides an excellent review of the skeletal remains of two marine mammals commonly found in the Miocene to recent marine deposits. An excellent guide to identifying your fossil mammal finds. Great guide for Lee Creek fossils. Note - an intenational shipping surcharge may be required for qualified free shipping orders.

BB11             Size: 8-1/2" x 11-1/2"

A High Quality Pachychephalosaurus wyomingensis tooth from the late Cretaceous of northern North America. Pachychephalosaurus is the dinosaur which is famous for its large domed head surrounded by spikes. The enamel is good quality with nice color / patina. Typical wear faucet from grinding on opposing teeth. Note - high center ridge and crown assymetry (see Pachy maxillary teeth differentiation discussion below). Note the nice crown wave on the right side. No cracks or restoration. An ultra rare Pachy tooth!  Legally collected on private land in the Hell Creek Fm., Garfield Co., Montana. An excellent collector's quality Pachychephalosaurus tooth. Note - tooth comes with the gem case pictured. Authenticity guaranteed.

DP04       SIZE: 5/16"   

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

A Top Quality Pachychephalosaurus wyomingensis rooted tooth from the late Cretaceous of northern North America. Pachychephalosaurus is the dinosaur which is famous for its large domed head surrounded by spikes. The enamel is excellent quality with great color / patina. Typical wear faucet from grinding on opposing teeth. Note - high center ridge and crown assymetry (see Pachy maxillary teeth differentiation discussion below). Note the nice crown wave on the left side. No cracks or restoration. An ultra rare Pachy tooth!  Legally collected on private land in the Hell Creek Fm., Carter Co., Montana. An excellent collector's quality Pachychephalosaurus tooth. My best rooted maxillary Pachy tooth. Note - tooth comes with the gem case pictured. Authenticity guaranteed.

DP03       SIZE: 7/16"   

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

A Top Quality, Rare Pachychephalosaurus wyomingensis node cluster from the late Cretaceous of northern North America. An August Fossil of the Month. Pachychephalosaurus is the dinosaur which is famous for its large domed head surrounded by these spikes and nodes (2+ nodes). This spike has excellent color / patina with exceptional surface articulation. The blood grooves are still present in the bone. It is a complete specimen with no cracks or breaks. This is a node cluster with a large node surrounded by a group of small nodes. Note -  the excellent articulated skull surface on the base of the node. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. An excellent and very rare collector's quality Pachychephalosaurus node cluster. You don't see these skull pieces very often. No repair or restoration. Authenticity guaranteed. A very special piece - my best cluster!

DP33  BoP     SIZE: 2" H  (Base: 1-7/8"  x  1-3/8")

Note - Adding 6 new Pachy spikes / nodes in August 2020.       Link to Pachy fossils catalog

A LARGE Ultra Rare, Top Quality Pachychephalosaurus wyomingensis premaxillary tooth from the late Cretaceous of northern North America.  This tooth is often referred to as the Pachy "Fang". There are posterior serrations present on this tooth. There is also a small wear facet on the tip (quite common). Pachychephalosaurus is the dinosaur which is famous for its large domed head surrounded by spikes. The enamel is excellent quality with great color and patina. No cracks or restoration. An ultra rare Pachy premax tooth!  Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. An excellent collector's quality Pachychephalosaurus premaxillary tooth. Note - tooth comes with the gem case pictured. Authenticity guaranteed. A fantastic Pachy premaxillary tooth!

DP02       SIZE: 1/2"    

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

A GEM  Pachychephalosaurus wyomingensis pes ungual (foot claw) from the late Cretaceous of northern North America. Pachychephalosaurus is the dinosaur which is famous for its large domed head surrounded by spikes. This ungual has excellent color and patina. Complete specimen. An exceptional pes ungual. Note - this ungual has a strong Pachy twist (see Pachy ungual differentiation discussion below). No repair or restoration. An ultra rare Pachy pes ungual! Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. An exceptional collector's quality Pachychephalosaurus claw. Museum quality. Note - claw comes with a Riker type frame. Authenticity guaranteed. You do not see these top quality claws any more...

DP23       SIZE: 1-5/8"   

Note - Adding 4 new Pachy unguals in July 2018.       Link to Pachy fossils catalog

A Top Quality Pachychephalosaurus wyomingensis pes ungual (foot claw) from the late Cretaceous of northern North America. Pachychephalosaurus is the dinosaur which is famous for its large domed head surrounded by spikes. This ungual has excellent color and patina. Complete specimen with a very small amount of tip wear. An exceptional pes ungual. Note - this ungual has a strong Pachy twist (see Pachy ungual differentiation discussion below). No repair or restoration. An ultra rare Pachy pes ungual! Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. An exceptional collector's quality Pachychephalosaurus claw. Museum quality. Note - this claw comes with a Riker type frame. Authenticity guaranteed.

DP24       SIZE: 1-7/16"   

Note - Adding 4 new Pachy unguals in July 2018.       Link to Pachy fossils catalog

A Top Quality Pachychephalosaurus wyomingensis pes ungual (foot claw) from the late Cretaceous of northern North America. Pachychephalosaurus is the dinosaur which is famous for its large domed head surrounded by spikes. This ungual has excellent color and patina. Complete and well preserved with slight tip wear. Overall an excellent pes ungual. Note - this ungual has the Pachy twist (see Pachy ungual differentiation discussion below). No repair or restoration. An ultra rare Pachy pes ungual! Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. No repair or restoration. An exceptional collector's quality Pachychephalosaurus claw. Museum quality. Note - claw comes with a Riker type frame. Authenticity guaranteed.

DP22       SIZE: 1-1/2"   

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

A Top Quality, Rare Pachychephalosaurus wyomingensis 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 skull. This spike has excellent color / patina. It is a nearly complete specimen with no cracks or breaks. Legally collected on private land in the Hell Creek Fm., Garfield Co., Montana. An excellent collector's quality Pachychephalosaurus spike. You don't see these skull pieces very often. No repair or restoration. Authenticity guaranteed.

DP40       SIZE: 1-1/2"   (7/8" W) 

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