Search results for: 'black cut through the guid'

A GEM Otodus with a severely distorted cutting edge - what I refer to as the "acid" effect. The entire top of the crown is split into multiple cusps that are melting away -  a very unusual pathology. Incredible color and preservation. Museum quality.Perfect tooth.

M010P          SIZE: 1-3/8"

A very rare, Top Quality Edestus heinrichi shark tooth, from Herrin, Illinois. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. Excellent preservation, serrations, and serration detail. The Edestus shark would have an upper and lower tooth whorl that are vertically opposed. Research showed that they could use their opposing teeth in a scissor-like motion or a vertical whipping motion to cut prey. It is the first animal to cut vertically. A very strange looking and unique acting shark. Shark recreation image is credited to Julio Lacerdo. These rare teeth are Pennsylvanian age from Illinois. No repair or restoration. Authenticity guaranteed. 

I23          SIZE:  1-7/8"  w/ root  (7/8" crown)

Adding 22 Edestus shark specimens in July 2025.    Link to Edestus shark.

A very rare, Top Quality Edestus heinrichi shark tooth, from Herrin, Illinois. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. Excellent preservation, serrations, and serration detail. The Edestus shark would have an upper and lower tooth whorl that are vertically opposed. Research showed that they could use their opposing teeth in a scissor-like motion or a vertical whipping motion to cut prey. It is the first animal to cut vertically. A very strange looking and unique acting shark. Shark recreation image is credited to Julio Lacerdo. These rare teeth are Pennsylvanian age from Illinois. No repair or restoration. Authenticity guaranteed. 

I18          SIZE:  2-1/2" w/ root   (1-1/4"crown)

Adding 22 Edestus shark teeth in July 2025.    Link to Edestus shark.

A very rare, Top Quality Edestus heinrichi shark tooth, from Herrin, Illinois. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. Fantastic enamel quality. Excellent preservation, serrations, and serration detail. The Edestus shark would have an upper and lower tooth whorl that are vertically opposed. Research showed that they could use their opposing teeth in a scissor-like motion or a vertical whipping motion to cut prey. It is the first animal to cut vertically. A very strange looking and unique acting shark. Shark recreation image is credited to Julio Lacerdo. These rare teeth are Pennsylvanian age from Illinois. No repair or restoration. Authenticity guaranteed. 

I17          SIZE:  1-5/8" w/ root   (1-1/4"crown)

Adding 22 Edestus shark teeth in July 2025.    Link to Edestus shark.

A very rare, Top Quality Edestus heinrichi shark tooth, from Herrin, Illinois. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. Fantastic enamel quality. Excellent preservation, serrations, and serration detail. The Edestus shark would have an upper and lower tooth whorl that are vertically opposed. Research showed that they could use their opposing teeth in a scissor-like motion or a vertical whipping motion to cut prey. It is the first animal to cut vertically. A very strange looking and unique acting shark. Shark recreation image is credited to Julio Lacerdo. These rare teeth are Pennsylvanian age from Illinois. No repair or restoration. Authenticity guaranteed. 

I16          SIZE:  2-3/8" w/ root   (1-3/4"crown)

Adding 22 Edestus shark teeth in July 2025.    Link to Edestus shark.

A very rare, LARGE, Top Quality Edestus heinrichi shark tooth, from Herrin, Illinois. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. Excellent crown enamel. Excellent preservation, serrations, and serration detail. The Edestus shark would have an upper and lower tooth whorl that are vertically opposed. Research showed that they could use their opposing teeth in a scissor-like motion or a vertical whipping motion to cut prey. It is the first animal to cut vertically. A very strange looking and unique acting shark. Shark recreation image is credited to Julio Lacerdo. These rare teeth are Pennsylvanian age from Illinois. No repair or restoration. Authenticity guaranteed. 

I08        SIZE:  3-1/8" w/ root  (1-3/8" crown) 

Adding 22 Edestus shark teeth in July 2025.    Link to Edestus shark.

A very rare, EXTRA LARGE, Top Quality Edestus heinrichi shark tooth, from Herrin, Illinois. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. Excellent preservation, serrations, and serration detail. The Edestus shark would have an upper and lower tooth whorl that are vertically opposed. Research showed that they could use their opposing teeth in a scissor-like motion or a vertical whipping motion to cut prey. It is the first animal to cut vertically. A very strange looking and unique acting shark. Shark recreation image is credited to Julio Lacerdo. These rare teeth are Pennsylvanian age from Illinois. No repair or restoration. Authenticity guaranteed. 

I06        SIZE:  3-1/8" w/ root  (2-1/8" crown) 

Adding 22 Edestus shark teeth in July 2025.    Link to Edestus shark.

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 beautifully prepared, LARGE Leonaspis sp. trilobite. Very unique raised eyes design and long spines are fully exposed - see close up photo. Exceptional black shell and spines. A Middle Devonian (380 mya) trilobite from the Djebel Issoumour area, Atlas Mts., Morocco. Authenticity guaranteed. An excellent large sized GEM QUALITY specimen.

XM29       Size: 1-1/2"  (1-1/4" )

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

A Top Quality Squalus acanthius, the Piked Dogfish shark tooth from the "De Kuilen" sand pit, Mill, The Netherlands. This tooth has excellent color and preservation. Sharp cutting edge. The age is late Miocene (approx. 6-8 million years ago). An excellent collector's tooth. Authenticity guaranteed.

N373       SIZE: 1/8"

A Quality Ankylosaurus osteoderm (bony armor plate) from the late Cretaceous of northern North America. Ankylosaurus magniventris was the largest Ankylosaur which grew to 30 feet and 17000 pounds, and a body covered with this bony armor. A complete body osteoderm plate from a juvenile Ankylosaurus. The bone is excellent quality with excellent color and patina with some stream erosion. No cracks or restoration. Legally collected on private land in the Hell Creek Fm., Carter Co., Montana. Authenticity guaranteed. A collector's quality Ankylosaur osteoderm. 

DK33         SIZE: 1-1/4"  x  1"

Note - Adding 16 new Ankylosaur - Nodosaur fossils in January 2023.       Link to Ankylosaur fossils catalog.

A Large, Top Qaulity Edmontonia rugosidens tooth from the late Cretaceous of northern North America. Edmontonia rugosidens was a large Nodosaur which grew to 20 feet and 6000 pounds. The enamel is very good quality with good color / patina. Very little natural wear. No cracks or restoration. ~76 MYA. Legally collected on private land in the Judith River Fm., Wheatfield Co., Montana. Authenticity guaranteed. A collector's quality Nodosaur tooth. Note - tooth comes with the gem case pictured.

DK20       SIZE: 7/16"  (3/8" Wide)   

Note - Adding 16 new Ankylosaur - Nodosaur fossils in January 2023.       Link to Ankylosaur fossils catalog.