Search results for: 'guid species line'

A Top Quality Ptychodus mammillaris, 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 strong transverse ridges across the cusp that transition to a concentric pattern at the base of the cusp. Authenticity guaranteed. Perfect tooth. This is a rare species.

T272            SIZE: 13/16

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

An EXTRA LARGE, rare Top Quality Xiphodalamia ensis tooth from the Tolagaysor Fm., Aktulagay, western Kazakhstan. Anterior position. This is an early Eocene (Ypresian) Lamnidae tooth. This scarce shark species had very unique teeth. Excellent condition and preservation. These teeth are  to find! Authenticity guaranteed. One of the finest localities for Eocene age shark teeth! You will enjoy the quality of the Kazakh teeth.

K351         Size: 1-1/16"

Note - Adding 20 Xiphodolamia teeth in August 2024.   Link to Kazakh Xiphodolamia teeth.

The Kolbay Collection. A Top Quality Hispidaspis lasuri tooth from Kolbay, W. Kazakhstan. A lateral tooth. Note - This species is known for their multiple, highly irregular side cusps which can cover the entire root shoulder and the base of the crown. Very strange! Great color and condition. An excellent Middle Cretaceous (U. Albian - 102 MYA) age tooth. No repair or restoration. Authenticity guaranteed. You will enjoy the quality of the Kazakh teeth. A special piece from an old collection. 

K1438        SIZE: 11/16"

An extra large, nicely prepared Hollardops sp. trilobite. Preparation is German directed with all original colors and no restoration. Excellent preservation and condition. Nice detail in the compound eyes. A Middle Devonian (380 mya) from the Djebel Issoumour area, Atlas Mts., Morocco. A large, high quality specimen. Authenticity guaranteed. Notye - This is the Hollardops species with narrow pointy spines on the tail.

XM36      Size: 2-3/8" (1-1/2" wide)

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

A 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!

T395            SIZE: 13/16"

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

A 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!  

T393            SIZE: 7/8"

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

A 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!  

T388            SIZE: 7/8"

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

A 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!  

T387            SIZE: 15/16"

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

A 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!  

T386            SIZE: 15/16"

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

An Ultra Rare Pappocetus lugardi (Andrews, 1920) premolar tooth from Morocco. Pappocetus was in the Protocetidae family of ancient whales . Note - this tooth is a premolar with a natural wear facet and most of the root. This material is a new find and represents one of the earliest transition forms of the whale. Pappocetus is a protocetid (see discussion below) and a large amphibious aquatic carnivore. Pappocetus is also an ancestor of the Basilosaurus. This material is complete and without repair. This is an opportunity to own an incredibly rare specimen from an early evolutionary stage of the modern whale. A fantastic collector's specimen. Authenticity guaranteed.

M2101          Size: 3-5/8"  (straight line)  

Mid. Eocene (Bartonian) age  (40 MYA)

Gueran, (25 km SE of Boujdour), Boujdour Basin

West Sahara, Morocco

Note - adding six early whale teeth in August 2023.   Link to the early whales.

An ultra rare Top Quality, Stegosaurus plate. A February Fossil of the Month. This Stegosaurus plate is good sized and measures 17-1/2" wide x 13" high. The bone quality is exceptional with a black color. Excellent overall condition. There is limited crack fill, but there is no restoration. This is a large and all natural specimen. Stegosaurus was an iconic quadruped herbivore recognized by these plates lining its neck, back and tail during the late Jurassic. Legally collected on private land in the Morrison Fm., Bone Cabin Quarry, Albany Co., Wyoming. Authenticity guaranteed. A very rare collector's specimen!  Note - This specimen has a custom steel display stand as shown. This specimen weighs 19 lbs. A supplemental shipping fee will be required for international orders.

STEG1     SIZE:  17-1/2" wide x 13" height (plate base is 2-1/2" thick)  ;  Height on display stand: 18"

A natural Hoploscaphites nebrascensis ammonite with excellent preservation of the shell material. The ammonite shell has some natural iridescence. This ammonite species exhibits big ribs with multiple rows of tubercles (nodes). This specimen is sits in an original Pierre Shale nodule with a flat base for a great display. This ammonite is from the upper Cretaceous, Pierre Shale Fm. of So. Dakota. Authenticity guaranteed. A fantastic display piece.  

SD02        Size: 2-1/8"

Note - Adding 10 So. Dakota ammonites in December 2020.  -->  Link to So. Dakota Ammonites