Search results for: 'bone valley fossil mako shark three//'

An EXTRA LARGE, rare TOP QUALITY, Great White shark transition tooth, Carcharodon hubbelli. An upper jaw anterior tooth on its original phosphorite matrix. This C. hubbelli tooth has medium to small serrations at the base of the cutting edge that disappear towards the tip. This tooth has an excellent tan colored crown and tan root. Fantastic color!  No repair or restoration. Authenticity guaranteed. An exceptional Great White transition form!  It will be extremely difficult to locate Carcharodon hubbelli since there is no new supply. An excellent display piece.

C202T           SIZE: 2-11/16"

Note - Adding 7 new C. hubbelli (GW transition) teeth in September 2025      Link to GW Transition Teeth

A TOP QUALITY, Penguin or bird toe from the Bahia Iglesa Fm. of central Chile.  A complete four digit toe. Great color and preservation. No repair or restoration. Authenticity guaranteed.

C775        Size: 2-3/8"

Note - Adding 16 Penguin fossils in March 2025.  Link -> Chilean Bird fossils

A TOP QUALITY, Penguin or bird toe from the Bahia Iglesa Fm. of central Chile.  A complete four digit toe. Great color and preservation. No repair or restoration. Authenticity guaranteed.

C774        Size: 2-1/4"

Note - Adding 16 Penguin fossils in March 2025.  Link -> Chilean Bird fossils

An ultra rare, TOP QUALITY Spheniscus sp. , Penguin skull from the Bahia Iglesa Fm. of central Chile. A March Fossil of the Month. An excellent skull and beak. Great color and preservation. No repair or restoration. Authenticity guaranteed. There are several penguin species described from this site, but I only seen 7 or 8 of these skulls ofered for sale 20-25 years ago.

C772        Size: 6-1/2" skull with beak ; 2-1/2" wide

Note - Adding 16 Penguin fossils in March 2025.  Link -> Chilean Bird fossils

A RARE, Top Quality Dromaeosaurus albertensis (raptor) tooth from the Judith River Fm. of Montana. An August Fossil of the Month. This tooth is 1/2" which is a typical size. The enamel is excellent with a great brown color. This species is known for large posterior serrations that will turn upwards. Excellent large posterior (distal) and small anterior (mesial) serrations. There is a natural wear facet on tip. No cracks. No repair. Legally collected on private land in the Judith River Fm., Wheatstone Co., Montana. Authenticity guaranteed. This is your chance to own a rare, top quality Dromaeosaurus albertensis tooth.  Note - A gem jar will be included as photographed.

DG09 BoP       SIZE: 1/2"

Note - Adding 2 new Dromaeosaurus  teeth in August 2022      Link to Raptor (Dromaeosaur) catalog.

A beautifully prepared, TOP QUALITY Walliserops lindoei trilobite, the "short trident Comura".  One of the collector's favorite spiny trilobites. A November Fossil of the Month. Walliserops lindoei is an unusual looking species with three rows of spines run down its back and a trident-like fork extending from the front of the cephalon. The preparation is German with all original colors and no restoration. Exceptional completeness and preservation. Great natural black shell with excellent luster.  A very difficult species to prepare. Excellent shell and spine preservation. Excellent compound eyes. Good size. A scarce species! One of the ultimate Middle Devonian (380 mya) spiny trilobite from the Foum Zguid, Morocco. Authenticity guaranteed. One of my favorite spiny trilobites!  Museum Quality. Note - specimen weights 1.7 lbs. International orders may require supplemental postage added to Free Shipping. Please inquire.  

XM75          Size: 1-7/8"   (1")

Adding 9 top quality Moroccan trilobites in November 2025.     Link to Moroccan trilobites.

A "Flying" TOP QUALITY Walliserops trifurcatus trilobite, the "trident Comura".  A November Fossil of the Month and one of the collector's favorite spiny trilobites. Walliserops trifurcatus is an unusual looking species with three rows of of spines run down its back and a trident-like fork extending from the front of the cephalon. The preparation is German controlled with all original colors and no restoration. Exceptional completeness and preservation. Great natural black shell with excellent luster. The bottom of this trilobite has been cleaned out and it sits on an 1" matrix pedestal. A very difficult species to prepare. Excellent shell and spine preservation. Compound eyes are very good. Good size. A rare species! One of the ultimate Middle Devonian (380 mya) spiny trilobite from the Foum Zguid, Morocco. Authenticity guaranteed. One of my favorite spiny trilobites!  Museum Quality.  On Hold

XM06          Size: 3-1/4"  x  1-1/4"

Adding 9 top quality Devonian age Moroccan trilobite species.  -->  Link to Moroccan Trilobites.

A very rare, early Macrorhizodus nolfi upper jaw, lateral tooth from Aktulagay, western Kazakhstan. Macrorhizodus nolfi is a Lamnidae shark and an early Mako shark (Isurus praecursor) relative in this early Eocene deposit. The side cusps are complete. No repair. Authenticity guaranteed. Perfect tooth.

K572         SIZE: 3/4"

Note - Adding 18 Kazakh Auriculatus or transition teeth in April 2020. -->  Link to Kazakh Auriculatus teeth.

A Top Quality Thescelosaurus neglectus pes ungual (foot claw) from the late Cretaceous of northern North America. Thescelosaurus is a mid-sized dinosaur found in the Hell Creek formation. This claw is excellent quality with excellent color / patina. A little erosion at the tip, but otherwise a perfect claw. Note - Thesc unguals are described as flat triangles.(see Thesc-Pachy claw differentiation discussion below). No repair and no restoration. A rare Thescelosaurus pes ungual! Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Excellent collector's quality Thescelosaurus claw. Note - claw comes with a Riker type frame. Authenticity guaranteed.

DI22 BoP        SIZE: 1-15/16"  

Note - Adding 4 new Thescelosarus claws in July 2018.       Link to Thesc fossils catalog

An ultra rare, TOP QUALITY Spheniscus megaramphus , Penguin skull from the Bahia Iglesa Fm. of central Chile. A March Fossil of the Month. An excellent, large skull and beak. Great color and preservation. No repair or restoration. Authenticity guaranteed. There are several penguin species described from this site, but I only seen 7 or 8 of these skulls ofered for sale 20-25 years ago. This is the largest penguin from this site. My largest and best example.

C771        Size: 8-1/8" skull with beak ; 2-1/2" wide

Note - Adding 16 Penguin fossils in March 2025.  Link -> Chilean Bird fossils

An EXTRA LARGE, Top Quality Hexanchus griseus tooth from the Caldera Basin of Chile. A March Fossil of the Month. This is complete lower jaw tooth. Superb preservation and color. Thirteen very sharp and primary cusps. An excellent root - very unique & difficult to find! Near Perfect tooth tooth. Authenticity guaranteed. Museum Quality collector's tooth. Unfortunately there are no more teeth coming from this site. This is the largest complete / 100% natural Hexanchus tooth that I have!    Check out my new Blog - The Best of Chile - Shark Teeth   https://www.buriedtreasurefossils.com/blog/post/the-best-of-chile-fossil-shark-teeth/   

C401L  BoP         Size: 2-1/16"

Note - Adding 10 new Chilean Hexanchus teeth in March 2020 ->  Link to Hexanchus Teeth 

A High Quality Pachychephalosaurus wyomingensis tooth from the late Cretaceous of northern North America. Pachychephalosaurus is the dinosaur which is famous for its large domed head surrounded by spikes. The enamel is good quality with nice color / patina. Typical wear faucet from grinding on opposing teeth. Note - high center ridge and crown assymetry (see Pachy maxillary teeth differentiation discussion below). Note the nice crown wave on the right side. No cracks or restoration. An ultra rare Pachy tooth!  Legally collected on private land in the Hell Creek Fm., Garfield Co., Montana. An excellent collector's quality Pachychephalosaurus tooth. Note - tooth comes with the gem case pictured. Authenticity guaranteed.

DP04       SIZE: 5/16"   

Note - Adding 13 new Pachy spikes, claws and teeth in April 2023.   Link to Pachy fossils catalog