Search results for: 'biblioteca national dure peru deposit local'

A Very Rare, Top Quality (Gem) Rolfodon ludvigseni tooth from Hornby Island, British Columbia, Canada. An August Fossil of the Month. This is a new genius of Frill shark from the Late Cretaceous deep water Northumberland Formation deposit. A unique species of Chlamydoselachiform shark, the Frill shark. These teeth exhibit classic Frill shark design with a central cusp flanked by two lateral cusps. The crown is complete and the root is complete. Note - all three crown tip ends were very neatly reattached without fill or gaps which is typical for a matrix free specimen. Crack lines are hard to see without magnification. Highest quality enamel. No repair. A very difficult tooth to locate and an excellent collector's tooth. Authenticity guaranteed. This incredible specimen is from a 20 year old collection. A fantastic Frill shark specimen!

CD90              SIZE: 5/8"  Wide 

Note - Adding 64 Hornby Island deep water shark teeth.   ->   Link to all Hornby Island shark teeth.

A Very Rare, Top Quality (Gem) Rolfodon ludvigseni tooth from Hornby Island, British Columbia, Canada. An August Fossil of the Month. This is a new genius of Frill shark from the Late Cretaceous deep water Northumberland Formation deposit. A unique species of Chlamydoselachiform shark, the Frill shark. These teeth exhibit classic Frill shark design with a central cusp flanked by two lateral cusps. The crown is near complete (central cusp end damage)  and the root is complete. Note - two crown ends were very neatly reattached without fill or gaps which is typical for a matrix free specimen. Crack lines are hard to see without magnification. Highest quality enamel. No repair. A very difficult tooth to locate and an excellent collector's tooth. Authenticity guaranteed. This incredible specimen is from a 20 year old collection. A fantastic Frill shark specimen!

CD91              SIZE: 5/8"  Wide 

Note - Adding 64 Hornby Island deep water shark teeth.   ->   Link to all Hornby Island shark teeth.

A Very Rare, Top Quality (Gem) Rolfodon ludvigseni tooth from Hornby Island, British Columbia, Canada. An August Fossil of the Month. This is a new genius from the Late Cretaceous deep water Northumberland Formation deposit. A unique species of Chlamydoselachiform shark, the Frill shark. These teeth exhibit classic Frill shark design with a central cusp flanked by two lateral cusps. A lateral tooth. The crown is complete and the root is complete. Note - two crown ends were very neatly reattached without fill or gaps which is typical for a matrix free specimen. Crack lines are hard to see without magnification. Highest quality enamel. No repair. A very difficult tooth to locate and an excellent collector's tooth. Authenticity guaranteed. This incredible specimen is from a 20 year old collection. A fantastic Frill shark specimen!

CD92              SIZE: 5/16"  Wide 

Note - Adding 64 Hornby Island deep water shark teeth.   ->   Link to all Hornby Island shark teeth.

A Very Rare, Top Quality Rolfodon ludvigseni junvenile tooth from Hornby Island, British Columbia, Canada.  This is a new genius of Frill shark from the Late Cretaceous deep water Northumberland Formation deposit. A unique species of Chlamydoselachiform shark, the Frill shark. (Note - the specimen is the size and character of the extremely rare Chlamydoselachus balli, but it lacks the two small acessory cusps that reside between the main cusps.)  These teeth exhibit classic Frill shark design with a central cusp flanked by two lateral cusps. The crown is near complete with damage to one cusp end and the root may complete or may be missing some root end. Highest quality enamel. No repair. A very difficult tooth to locate and an excellent collector's tooth. Authenticity guaranteed. This incredible specimen is from a 20 year old collection. An excellent Frill shark specimen!

CD94              SIZE: 3/16"  Wide 

Note - Adding 64 Hornby Island deep water shark teeth.   ->   Link to all Hornby Island shark teeth.

A LARGE Auriculatus tooth. Anterior tooth. Enamel quality is good with an extra large bourlette. Serrations are sharp. The tip area was broke during feeding and is worn smooth. This shark was eating some tough whales as well. A massive root. Typical commercial grade tooth.

M063         SIZE: 2-5/8"

A Top Quality Ptychodus anonymus, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. An excellent example of this Upper Cretaceous Eagle Ford Fm. tooth. These massive teeth have a design with transverse ridges extending across the cusp face. Authenticity guaranteed. Perfect tooth. 

T089            SIZE: 7/16"

Note - Adding 100+ new Texas shark teeth in October 2021.   Link to Texas shark teeth

A Top Quality Ptychodus anonymus, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. An excellent example of this Upper Cretaceous Arcadia Park Fm. tooth. These massive teeth have a design with transverse ridges extending across the cusp face. Authenticity guaranteed. Perfect tooth. 

T088            SIZE: 9/16"

Note - Adding 100+ new Texas shark teeth in October 2021.   Link to Texas shark teeth

A Top Quality Ptychodus anonymus, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. An excellent example of this Upper Cretaceous Arcadia Park Fm. tooth. These massive teeth have a design with transverse ridges extending across the cusp face. Authenticity guaranteed. Near perfect tooth. 

T087            SIZE: 1/2"

Note - Adding 100+ new Texas shark teeth in October 2021.   Link to Texas shark teeth

A Top Quality Ptychodus anonymus, an extinct durophagous (shell-crushing) shark, tooth from McLennan Co., Texas. An excellent example of this Upper Cretaceous Lako Waco Fm. tooth. These massive teeth have a design with transverse ridges extending across the cusp face. Authenticity guaranteed. Perfect tooth. 

T084            SIZE: 1/2"

Note - Adding 100+ new Texas shark teeth in October 2021.   Link to Texas shark teeth

A Top Quality Ptychodus anonymus, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. An excellent example of this Upper Cretaceous Kamp Ranch Fm. tooth. These massive teeth have a design with transverse ridges extending across the cusp face. Authenticity guaranteed. Perfect tooth. 

T083            SIZE: 5/8"

Note - Adding 100+ new Texas shark teeth in October 2021.   Link to Texas shark teeth

A Top Quality Ptychodus anonymus, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. An excellent example of this Upper Cretaceous Kamp Ranch Fm. tooth. These massive teeth have a design with transverse ridges extending across the cusp face. Authenticity guaranteed. Perfect tooth. 

T082            SIZE: 11/16"

Note - Adding 100+ new Texas shark teeth in October 2021.   Link to Texas shark teeth

A Top Quality Ptychodus anonymus, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. An excellent example of this Upper Cretaceous Kamp Ranch Fm. tooth. These massive teeth have a design with transverse ridges extending across the cusp face. Authenticity guaranteed. Near perfect tooth. 

T081            SIZE: 7/8"

Note - Adding 100+ new Texas shark teeth in October 2021.   Link to Texas shark teeth