Search results for: 'bone evolution paleo à first revêtue'

A Top Quality Tyrannosaur tooth from the late Cretaceous (Campanian) in northern North America. An October Fossil of the Month. Please note that this tooth could Gorgosaurus or Daspletosaurus - see Detailed Discussion below. This tooth measures 2-3/8" - an excellent Tyrannosaur tooth. The enamel is high quality with excellent color. Anterior serrations and posterior serrations are excellent. Serrated to the tip. Note - the top has some minor planting etching and there is one natural wear facet on the side (very typical for the Campanian Tyrannosaurs). No cracks, repair or restoration. Legally collected on private land in the Judith River Fm., McCone Co., Montana. Probably an excellent Gorgosaurus tooth based on size and roundness of the tooth cross-section. Also found at a site that produced a Gorgosaurus skeleton. Authenticity guaranteed. An excellent BIG tooth. A Riker display frame is included.

DY04        SIZE: 2-3/8"  (Base: 7/8" x 5/8")

Note - Added 14 new Tyrannosaur teeth in October 2021.       Link to Tyrannosaur teeth catalog.

An incredible whole polished Cleoniceras ammonite showing the intricate external chamber structure. A gorgeous Cretaceous ammonite from Madagascar. Authenticity guaranteed. A great gift item. A chrome easel stand is included with this ammonite. Note - this item weighs more than 1.5 lbs. An international shipping surcharge can apply  to free shipping orders. 

X203       Size: 5-1/4"  (1-3/16" wide)

Note - Adding 15 Madagascar ammonites in December 2025  -->   Link to Madagascar ammonites

A beautifully prepared pair of Cornuproetus antlatiasus trilobites. An ornate design with long cheek spines! A rarer species. The preparation is German with all original colors and no restoration. Exceptional completeness and preservation. A Middle Devonian (380 mya) trilobite from Djebel Issoumour area, Atlas Mts., Morocco. Authenticity guaranteed.

XM19         Size: 1-1/4"  &  1-1/16"

Note - Posted 16 Moroccan trilobites in May 2024   -->   Link to Moroccan Trilobites

A beautifully prepared Coltraneia oufatenensis trilobite. The preparation is German directed with all original colors and no restoration. Great natural black shell with excellent luster. A very ornate design with extra large compound eyes! A Middle Devonian (380 mya) trilobite from Oufaten area, Atlas Mts., Morocco. Authenticity guaranteed.

XM13          Size: 1-7/8"  (1-1/4" wide)

Adding 31 quality Moroccan trilobites in April 2025.     Link to Moroccan trilobites.

A Top Quality Notorhynchus tooth - a Sevengill Cow shark, from the Randle's Cliff, Maryland.  A lower jaw tooth with 5 primary cusps. This tooth has an excellent blue - gray color with a tan root. Great color and preservation. This is an early Miocene age, Calvert Formation tooth. An excellent collector's tooth. Authenticity guaranteed. 

MD414         Size: 1/2"

Note adding 23 Maryland Cow shark teeth in June 2022.  --> Link to Maryland Cow Shark teeth

A Top Quality Notorhynchus tooth - a Sevengill Cow shark, from the Randle's Cliff, Maryland.  A lower jaw tooth with 6 primary cusps. This tooth has an excellent blue - gray color with a tan root. Great color and preservation. This is an early Miocene age, Calvert Formation tooth. An excellent collector's tooth. Authenticity guaranteed. 

MD413         Size: 11/16"

Note adding 23 Maryland Cow shark teeth in June 2022.  --> Link to Maryland Cow Shark teeth

A Top Quality Notorhynchus tooth - a Sevengill Cow shark, from the Randle's Cliff, Maryland.  A lower jaw tooth with 6 primary cusps. This tooth has an excellent blue - gray color with a tan root. Great color and preservation. This is an early Miocene age, Calvert Formation tooth. An excellent collector's tooth. Authenticity guaranteed. 

MD412         Size: 13/16"

Note adding 23 Maryland Cow shark teeth in June 2022.  --> Link to Maryland Cow Shark teeth

A Top Quality Notorhynchus tooth - a Sevengill Cow shark, from the Randle's Cliff, Maryland.  A lower jaw tooth with 6 primary cusps. This tooth has an excellent blue - gray color with a tan root. Great color and preservation.  This is an early Miocene age, Calvert Formation tooth. An excellent collector's tooth. Authenticity guaranteed. 

MD408         Size: 1-1/16"

Note adding 23 Maryland Cow shark teeth in June 2022.  --> Link to Maryland Cow Shark teeth

A Top Quality Notorhynchus tooth - a Sevengill Cow shark, from the Randle's Cliff, Maryland.  A lower jaw tooth with 7 primary cusps. This tooth has an excellent blue - gray color with a tan root. Great color and preservation. This is an early Miocene age, Calvert Formation tooth. An excellent collector's tooth. Authenticity guaranteed. 

MD407         Size: 1-1/16"

Note adding 23 Maryland Cow shark teeth in June 2022.  --> Link to Maryland Cow Shark teeth

A Top Quality Notorhynchus tooth - a Sevengill Cow shark, from the Randle's Cliff, Maryland.  A lower jaw tooth with 7 primary cusps. This tooth has an excellent blue - gray color with a tan root. Great color and preservation. This is an early Miocene age, Calvert Formation tooth. An excellent collector's tooth. Authenticity guaranteed. 

MD406         Size: 1"

Note adding 23 Maryland Cow shark teeth in June 2022.  --> Link to Maryland Cow Shark teeth

A Top Quality Notorhynchus tooth - a Sevengill Cow shark, from the Randle's Cliff, Maryland.  A rare lower jaw symphyseal tooth with 10 primary cusps. This tooth has an excellent blue - gray color with a tan root. Great color and preservation. This is an early Miocene age, Calvert Formation tooth. An excellent collector's tooth. Authenticity guaranteed. 

MD404         Size: 1/2"

Note adding 23 Maryland Cow shark teeth in June 2022.  --> Link to Maryland Cow Shark teeth

A Top Quality Notorhynchus tooth - a Sevengill Cow shark, from the Randle's Cliff, Maryland.  A rare lower jaw symphyseal tooth with 10 primary cusps. This tooth has an excellent blue - gray color with a tan root. Great color and preservation. This is an early Miocene age, Calvert Formation tooth. An excellent collector's tooth. Authenticity guaranteed. 

MD403         Size: 5/8"

Note adding 23 Maryland Cow shark teeth in June 2022.  --> Link to Maryland Cow Shark teeth