Search results for: 'spine age a'

A LARGE, Top Quality Ptychodus mortoni, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. An excellent example of this Upper Cretaceous Eagle Ford Fm. tooth. These  teeth have a design that includes a high cusp with radiating occlusal ridges extending across the cusp face. Authenticity guaranteed. P. mortoni is a rare species in Texas, and when teeth get this large they are extremely rare!  Near Pefect tooth.

T375            SIZE: 1-1/4"

Adding 24 Ptychodus mortoni teeth in August 2025.   Link to Texas shark teeth

A LARGE, Top Quality Ptychodus mortoni, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. An excellent example of this Upper Cretaceous Eagle Ford Fm. tooth. These  teeth have a design that includes a high cusp with radiating occlusal ridges extending across the cusp face. Authenticity guaranteed. P. mortoni is a rare species in Texas, and when teeth get this large they are extremely rare!  Near Pefect tooth.

T374            SIZE: 1-3/8"

Adding 24 Ptychodus mortoni teeth in August 2025.   Link to Texas shark teeth

A LARGE, Top Quality Ptychodus mortoni, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. An excellent example of this Upper Cretaceous Eagle Ford Fm. tooth. These  teeth have a design that includes a high cusp with radiating occlusal ridges extending across the cusp face. Authenticity guaranteed. P. mortoni is a rare species in Texas, and when teeth get this large they are extremely rare!  

T373            SIZE: 1-3/8"

Adding 24 Ptychodus mortoni teeth in August 2025.   Link to Texas shark teeth

A LARGE, Top Quality Ptychodus mortoni, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. An excellent example of this Upper Cretaceous Eagle Ford Fm. tooth. These  teeth have a design that includes a high cusp with radiating occlusal ridges extending across the cusp face. Authenticity guaranteed. P. mortoni is a rare species in Texas, and when teeth get this large they are extremely rare!  

T372            SIZE: 1-3/8"

Adding 24 Ptychodus mortoni teeth in August 2025.   Link to Texas shark teeth

An EXTRA LARGE, High Quality Ptychodus mortoni, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. An excellent example of this Upper Cretaceous Eagle Ford Fm. tooth. These  teeth have a design that includes a high cusp with radiating occlusal ridges extending across the cusp face. Authenticity guaranteed. P. mortoni is a rare species in Texas, and when teeth get this large they are extremely rare! The last of my largest teeth.  

T371            SIZE: 1-3/4" x 1' height

Adding 24 Ptychodus mortoni teeth in August 2025.   Link to Texas shark teeth

An excellent pair of Mucrospirifer thedfordensis brachiopods from Arkona, Ontario, Canada. Brachiopods are bivalve molluscs. Both valves present  - complete specimens and matrix free. Excellent preservation. This is a middle Devonian (395 mya) brachiopod. Authenticity guaranteed. A great display group! 

Y024          SIZE: 1-3/8"   (largest)

Note - posting 23 new Brachiopods in January 2024.      Link to Brachiopods.

A beautifully prepared, rare Viaphacops trilobite. Incredible preservation. A HIGH QUALITY specimen from the Bois D Arc Fm., Coal Co., Oklahoma. A lower Devonian trilobite (410 mya).

X107          Size: 2-5/16"

An excellent group of three of Large, Top Quality Mucrospirifer thedfordensis brachiopods from Arkona, Ontario, Canada. Brachiopods are bivalve molluscs. Both valves present  - complete specimens and matrix free. Excellent preservation. This is a middle Devonian (395 mya) brachiopod. Authenticity guaranteed. A great display group! 

Y029          SIZE: 1-9/16"   (largest)

Note - posting 23 new Brachiopods in January 2024.      Link to Brachiopods.

An excellent group of three of Large, Top Quality Mucrospirifer thedfordensis brachiopods from Arkona, Ontario, Canada. Brachiopods are bivalve molluscs. Both valves present  - complete specimens and matrix free. Excellent preservation. This is a middle Devonian (395 mya) brachiopod. Authenticity guaranteed. A great display group! 

Y028          SIZE: 1-9/16"   (largest)

Note - posting 23 new Brachiopods in January 2024.      Link to Brachiopods.

An excellent  group of three of Large, Top Quality Mucrospirifer thedfordensis brachiopods from Arkona, Ontario, Canada. Brachiopods are bivalve molluscs. Both valves present  - complete specimens and matrix free. Excellent preservation. This is a middle Devonian (395 mya) brachiopod. Authenticity guaranteed. A great display group! 

Y027          SIZE: 1-9/16"   (largest)

Note - posting 23 new Brachiopods in January 2024.      Link to Brachiopods.

An excellent group of three of Large, Top Quality Mucrospirifer thedfordensis brachiopods from Arkona, Ontario, Canada. Brachiopods are bivalve molluscs. Both valves present  - complete specimens and matrix free. Excellent preservation. This is a middle Devonian (395 mya) brachiopod. Authenticity guaranteed. A great display group! 

Y027          SIZE: 1-5/8"   (largest)

Note - posting 23 new Brachiopods in January 2024.      Link to Brachiopods.

An excellent group of three Large, Top Quality Mucrospirifer thedfordensis brachiopods from Arkona, Ontario, Canada. Brachiopods are bivalve molluscs. Both valves present  - complete specimens and matrix free. Excellent preservation. This is a middle Devonian (395 mya) brachiopod. Authenticity guaranteed. A great display group! 

Y026          SIZE: 1-5/8"   (largest)

Note - posting 23 new Brachiopods in January 2024.      Link to Brachiopods.