Search results for: 'book evolution polk à frill revêtue'

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

A Top Quality Triceratops horridus rib bone section 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 rib bone section with good detail preserved. No repair or restoration. 100% natural specimen. Legally collected on private land in Harding Co., So. Dakota. Authenticity guaranteed. 

DC38         SIZE: 1-3/4" Wide x 1-13/16" H

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

A Top Quality Cretoxyrhina mantelli tooth from Ness Co., Kansas. An excellent example of this Cretaceous shark. Authenticity guaranteed. 

KS014            SIZE: 11/16"

Note - Adding 15  new  Cretoxyrhina mantelli teeth in April 2020.   Link to Kansas Cretoxyrhina teeth

A HIgh Quality Cretoxyrhina mantelli tooth from Ness Co., Kansas. An excellent example of this Cretaceous shark. Authenticity guaranteed. 

KS013            SIZE: 11/16"

Note - Adding 15  new  Cretoxyrhina mantelli teeth in April 2020.   Link to Kansas Cretoxyrhina teeth

A Top Quality Cretoxyrhina mantelli tooth from Ness Co., Kansas. An excellent example of this Cretaceous shark. Authenticity guaranteed. Perfect tooth.

KS012            SIZE: 3/4"

Note - Adding 15  new  Cretoxyrhina mantelli teeth in April 2020.   Link to Kansas Cretoxyrhina teeth

A Top Quality Cretoxyrhina mantelli tooth from Ness Co., Kansas. An excellent example of this Cretaceous shark. Authenticity guaranteed. Near Perfect tooth.

KS011            SIZE: 15/16"

Note - Adding 15  new  Cretoxyrhina mantelli teeth in April 2020.   Link to Kansas Cretoxyrhina teeth

A Top Quality Cretoxyrhina mantelli tooth, the Ginsu shark, from Gove Co., Kansas. An excellent example of this Cretaceous shark. Authenticity guaranteed. Near Perfect tooth.

KS010            SIZE: 11/16"

Note - Adding 10 new Cretoxyrhina mantelli teeth in June 2023.    Link to Kansas Cretoxyrhina teeth

A Top Quality Cretoxyrhina mantelli tooth, the Ginsu shark, from Gove Co., Kansas. An excellent example of this Cretaceous shark. Authenticity guaranteed. Near Perfect tooth.

KS009            SIZE: 1-1/16"

Note - Adding 10 new Cretoxyrhina mantelli teeth in June 2023.    Link to Kansas Cretoxyrhina teeth

A LARGE, Top Quality Cretoxyrhina mantelli tooth, the Ginsu shark, from Gove Co., Kansas. An excellent example of this Cretaceous shark. Authenticity guaranteed. Near Perfect tooth.

KS008            SIZE: 1-1/4"

Note - Adding 10 new Cretoxyrhina mantelli teeth in June 2023.    Link to Kansas Cretoxyrhina teeth

A LARGE, Top Quality Cretoxyrhina mantelli tooth, the Ginsu shark, from Gove Co., Kansas. An excellent example of this Cretaceous shark. Authenticity guaranteed. Crack in crown. Near Perfect tooth.

KS007            SIZE: 1-5/16"

Note - Adding 10 new Cretoxyrhina mantelli teeth in June 2023.    Link to Kansas Cretoxyrhina teeth

A Top Quality Cretoxyrhina mantelli tooth from Gove Co., Kansas. This specimen is on its original Niobrara Chalk Fm. matrix. An excellent example of this Cretaceous shark. Authenticity guaranteed. 

KS015            SIZE: 9/16"

Note - Adding 15  new  Cretoxyrhina mantelli teeth in April 2020.   Link to Kansas Cretoxyrhina teeth