Search results for: 'cocoon creek un table à peru de latu'

An ultra rare, Top Quality Struthiomimus altus hand (manus) claw from the late Cretaceous of North America. A November Fossil of the Month.  Struthiomimus is a long legged, bipedal, toothless dinosaur found in the Hell Creek formation. The Struthiomimus means "ostrich mimic" which best describes this species. Exceptional bone quality and color. Excellent bone preservation. The tip was repaired which is quite common for claws. Legally collected on private land in the Judith River Fm., Hill Co., Montana. An excellent collector's quality Struthiomimus manus claw.  Authenticity guaranteed. You rarely see a Struthiomimus manus claw.  Specimen comes with a Riker display case.

DS16        SIZE: 2-3/16"   (Proximal end: 7/16" height x 3/8" wide)

 Perfect fossilized shark vertebrae. Excellent color with a nice desert polish. You will not see these very often. 

P806 (Right)         SIZE: 13/16"

An ultra rare, Top Quality Ankylosaurus magniventris rooted tooth from the late Cretaceous of North America. A June Fossil of the Month. Ankylosaurus magniventris was the largest Ankylosaur which grew to 30 feet and 17000 pounds. Note - These incredibly sized dinosaurs had small teeth and this rooted tooth is from a juvenile Ankylosaurus. The enamel is the highest quality with excellent color / patina. The crown has no wear facet. No cracks or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. An excellent collector's quality Ankylosaur tooth. Note - tooth comes with the gem case pictured. Rooted Ankylosaurus teeth are quite rare.

DK11      SIZE: 1/4"    (1/8" wide)

Note - Adding 9 new Ankylosaur / Nodosaur fossils in June 2024.       Link to Ankylosaur fossils catalog.

A Top Quality Tyrannosaurus rex Premaxillary (front) tooth from a big T. Rex. An October 2020 Fossil of the Month. This Rex crown measures 2-1/4" (straight line) and 1" thick. The enamel is the highest quality with no root etchings. Great dark chocolate brown color. Excellent serrations serrations. The tip is excellent with a small natural wear facet. No cracks. No breaks. A 100% natural tooth! A fantastic Premax Rex tooth!  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 privately deeded land in the Hell Creek Fm., Carter River Co., Montana. Authenticity guaranteed.  Note - a Riker frame is included. This is a top quality collector's tooth. Museum quality.

DT02 BoP3         SIZE: 2-1/4"   (1" W x 3/4" H)

Note - Adding 3 T. rex teeth in October 2020.  Link to T. rex teeth --> T. rex teeth

A TOP QUALITY Nanotyrannus lancensis tooth from the western US. This juvenile tooth measures 9/16" (straight line). The enamel is excellent quality. The posterior serrations are excellent. No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed.  An excellent collector's Nano tooth. 

DN20        SIZE: 9/16"

Note - Adding 24 Nanotyrannus teeth in March 2025  ->  Link to Nano Teeth

A Top Quality, Triceratops horridus toe bone (metatarsal) from the late Cretaceous of northern North America. Triceratops was a large ceratopsian dinosaur found in the Hell Creek formation which is known for three horns and the large frill protecting its neck. This is a great toe bone with exceptional detail preserved and good color / patina. This is the metatarsal IV 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. No repair or restoration. Legally collected on private land in Powder River Co., Montana. Authenticity guaranteed. This is a heavy bone (1.8 lbs shipping weight). An international shipping supplement may apply.  

DC34         SIZE: 6" long   Ends: 3-7/8" wide &  23-1/2" wide

Note - Adding 15 new Triceratops bones in November 2024.       Link to Triceratops 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 rare, Top Quality Triceratops horridus epoccipital (frill ornament) from the late Cretaceous of northern North America. Triceratops was a large ceratopsian dinosaur found in the Hell Creek formation which is known for three horns and a large frill protecting its neck. This epoccipital has excellent detail preserved and great color / patina. The epoccipitals were triangular bone ornaments that lined the top of the frill. The young Triceratops had narrow and tall epoccipitals, older juvenile Triceratops had low and wide epoccipitals, and adult Triceratops no longer had this ornament. You can see this epoccipital is narrow which is a characteristic of an younger juvenile Triceratops. No repair or restoration. 100% natural specimen. Legally collected on private land in Powder River Co., Montana. Authenticity guaranteed. 

DC64         SIZE: 1-1/4" Wide x 1-5/16" Height

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

A rare, Top Quality Triceratops horridus epoccipital (frill ornament) from the late Cretaceous of northern North America. Triceratops was a large ceratopsian dinosaur found in the Hell Creek formation which is known for three horns and a large frill protecting its neck. This epoccipital has excellent detail preserved and great color / patina. The epoccipitals were triangular bone ornaments that lined the top of the frill. The young Triceratops had narrow and tall epoccipitals, older juvenile Triceratops had low and wide epoccipitals, and adult Triceratops no longer had this ornament. You can see this epoccipital is wide which is a characteristic of an older juvenile Triceratops. Some crack fill. No restoration. Legally collected on private land in Powder River Co., Montana. Authenticity guaranteed. 

DC63         SIZE: 1-7/8" Wide x 1-1/4" Height

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

An EXTRA LARGE, Top Quality Ankylosaurus osteoderm (bony armor plate) from the late Cretaceous of northern North America. Ankylosaurus magniventris was the largest Ankylosaur which grew to 30 feet and 17000 pounds, and a body covered with this bony armor. A complete body osteoderm plate from an adult Ankylosaurus. The bone quality is excellent with excellent color and patina. This osteoderm has a high ridge on one side. There are some hydration cracks and crack fill. No restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. An excellent collector's quality Ankylosaur osteoderm. A thick and heavy osteoderm.

DK23         SIZE: 6-1/2"  x  4-3/8"  (Height = 1-3/4" on high side)

Note - Adding 7 new Ankylosaur - Nodosaur fossils in August 2025.       Link to Ankylosaur 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 Nanotyrannus lancensis tooth from the western US. This tooth measures 3/4" (straight line). The enamel is excellent quality. The posterior serrations are excellent. No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed.  An excellent collector's Nano tooth. Note - a gem case display is included.

DN16       SIZE: 3/4"

Note - Adding 18 Nanotyrannus teeth in August 2023  ->  Link to Nano Teeth