Search results for: 'bone evolution paleozo à frill revêtue'

An ultra rare, Top Quality Janassa bituminosa, an extinct primitive shark tooth, from the Paleozoic era in Nebraska. A May Fossil of the Month. Matrix free specimen - complete tooth! Great color. A very well preserved specimen. No repair or restoration. Authenticity guaranteed. An incredibly rare exceptional collector's tooth!  Note - This tooth is pictured in "A Pictorial Guide to Fossils" by Gerard R. Case; page 239.

Age: Upper Pennsylvanian (295 MYA); Kanwaka Fm.

Location: Cass Co., Nebraska

Z005 BoP     SIZE: 1-3/16"

Adding 55 US Paleozoic teeth in May 2022  -->  Link to US Paleozoic teeth

An ultra rare EXTRA LARGE, Top Quality Orodus sp., an extinct primitive shark tooth, from the Paleozoic era in Oklahoma. A May Fossil of the Month. Matrix free specimen. Great color with the dimples preserved. A very well preserved specimen. No repair or restoration. Note - right two end elements are currently not attached. Authenticity guaranteed. A rare excellent collector's tooth. The largest Orodus tooth that I have seen. A monster sized specimen! 

Age: Upper Pennsylvanian (305 MYA); Nellie Bly Fm.

Location: Seminole Co., Oklahoma

Z006 BoP    SIZE: 2-3/4"

Adding 55 US Paleozoic teeth in May 2022  -->  Link to US Paleozoic 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 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 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 rare, Top Quality juvenile Anzu wyliei metatarsal toe bone from the Hell Creek Fm. of Montana. A September Fossil of the Month. Anzu is referred to as the "Chicken from Hell". An excellent metatarsal bone. Excellent light brown color and patina. This specimen has excellent perservation. Incredible bone quality. A complete specimen. No repair or restoration. A top quality, collector's toe bone from the Hell Creek of Montana. Note - 2014 Anzu wyliei description paper attached below. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. A Museum Quality specimen. Anzu metatarsal toe bones are very hard to find. The BEST!

DA15       Size: 5-11/16"  ;  Ends:  1/2" & 11/16"

Note - Adding 7 Anzu wyliei bones & claws in September 2023.   Link to Anzu wyliei claws.

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.

Poeciliodus sp.; an  Extinct Bradydont shark

A rare crusher tooth from the Paleozoic era. Exceptional preservation and excellent surface articulation. An exceptional collector's piece from an old collection!

Age: Pennsylvanian (300 mya) ; Lane Shale Fm. (Missourian)

Location: Johnson Co., Kansas

Z141           SIZE: 5/8"

Chondrichthyes I - The is the Paleozoic Elasmobranchii reference book equivalent to Cappetta's book. This text is also a 2004 Reprint in very limited quantities. This is without a doubt the best and most comprehensive book published about the fossil sharks to date covering the Paleozoic era. Excellent text and fantastic illustrations of shark teeth. Hard bound with118 pages - heavy weight and glossy. Includes 116 figures. ** One book remains***  Note - an intenational shipping surcharge may be required for qualified free shipping orders.

BB01            Size: 8-1/2" x 11"

A rare, Top Quality Lagarodus sp., an extinct primitive shark tooth, from the Paleozoic era in Kentucky. Great color. A well preserved specimen. No repair or restoration. Authenticity guaranteed. An excellent collector's tooth! 

Age: Upper Mississippian (325 MYA); Somerset Shale Fm.

Location: Hardin Co., Kentucky

Z077      SIZE: 5/16"

 A rare, High Quality Sandalodus sp., an extinct primitive shark tooth, from the Paleozoic era in Indiana. Great color. A well preserved specimen. No repair or restoration. Authenticity guaranteed. An excellent collector's tooth! 

Age: Middle Mississippian (347 MYA); Salem Limestone Fm.

Location: Washington Co., Indiana

Z056      SIZE: 7/16"

Holmsella sp.; an  Extinct Primitive shark

A very rare shark skin specimen. This matrix piece is covered with dermal denticals. Shark skin impressions with denticals are extremely rare and a Paleozoic age find adds to the rarity. An exceptional collector's piece from an old collection!

Age: Pennsylvanian (295 mya) ; Dennis Fm.

Location: Hansen Quarry, La Platte, Nebraska

Z143         SIZE: 5-1/2"  x  4"