Search results for: 'margin toe 4 lower'

A GEM QUALITY, LARGE exceptionally prepared, Mrakibina cattol trilobite. The preparation is German with all original colors and no restoration. Exceptional completeness and preservation. Great natural black shell with excellent luster with extra large cheek spines. The compound eyes inward dimples and well preserved. A Middle Devonian (380 mya - El Oftal Fm.) trilobite from the Djebel Mrakib, Atlas Mts., Morocco. Authenticity guaranteed. Museum Quality. Note - specimen wights 1.5 lbs. International orders will require supplemental postage. Please inquire.

XM58         Size: 1-7/8"  (1-1/4" wide)

Note - Adding 16 new Moroccan Trilobites in May 2024.    -->    Link to Moroccan Trilobites

A Top Quality Squalicorax pawpawensis, an extinct Crow shark tooth from Tarrant Co., Texas. An excellent example of this Lower Cretaceous Paw Paw Fm. shark. Authenticity guaranteed. Near perfect tooth.

T410            SIZE: 1/4"

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

A Top Quality Squalicorax pawpawensis, an extinct Crow shark tooth from Tarrant Co., Texas. An excellent example of this Lower Cretaceous Paw Paw Fm. shark. Authenticity guaranteed. Perfect tooth.

T409            SIZE: 1/4"

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

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. 

I24          SIZE:  2-5/8"  w/ root

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. 

I20          SIZE:  1" 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. 

I19          SIZE:  1-3/16" crown

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

A Top Quality Diplomystus fish from the 18 Inch layer, Green River Fm., Lincoln Co. Wyoming. The Diplomystus dentatus is a Herring fish from the Eocene age (50 MYA) in the ancient Lake Gosiute deposit. This piece is from the 18 Inch Layer which is extremely hard and difficult to prepare. It also provides the most detailed, highly preserved fossils. Exceptional preservation and preparation. No repair. All natural.  Authenticity guaranteed. An excellent display piece!  

X469        SIZE: 6-3/4"      

Note - Adding 13 Green River Fm. Fossil fish in June 2023 --> Link to Fossil Fish

A LARGE Top Quality Diplomystus  fish from the 18 Inch layer, Green River Fm., Lincoln Co. Wyoming. The Diplomystus dentatus is a Herring fish from the Eocene age (50 MYA) in the ancient Lake Gosiute deposit. These fossil fish are nicely preserved fossils. Note - this matrix had a crack along a layer that was stabilzed. Excellent preservation and preparation. No repair or restoration. All natural.  Authenticity guaranteed. A fantastic  display piece!  

X466        SIZE: 7-1/4"      

Note - Adding 31 Green River Fm. Fossil fish in November 2024 --> Link to Fossil Fish

A Top Quality Edmontosaurus annectens lower jaw section from the late Cretaceous of North America. Edmontosaurus is a very large hadrosaur or "duck-bill" dinosaur found in the Hell Creek formation. They possessed ~300 teeth that were in columns of five teeth each which acted as conveyor belt to maintain a large chewing surface to cut and grind their food. This specimen is a section of the lower jaw showing the grooves where the columns of teeth were positioned. Bone quality is excellent. No restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. An excellent collector's quality Edmontosaurus jaw section.  Authenticity guaranteed.

DH35        SIZE: 4-1/4" length x 3" height

Note - Adding 22 Edmontosaurus bones / claws in April 2024.       Link to Edmontosaurus fossils catalog

Colorful Jurassic "gem" dinosaur bone from the Morrison Fm., Moffat Co., Colorado. Silica (agate) replaced sauropod dinosaur limb or vertebra bone. The bone pore structure is well perserved and gives the bone a wonderful natural "textured" look with different colorization. Colors include reds, orange, gold, blue, cream, charcoal, etc. Late Jurassic age (155 MYA). Excellent preservation and preparation. All natural with one highly polished face. Authenticity guaranteed. An incredible display piece!  

GB10         SIZE: 3-1/4" x 2-1/8" x 1 " Thick       

Note - Adding 14 Jurassic gem dinosaur bone specimens in November 2024 --> Link to Gem Bone 

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. A unique brown colored tooth - very unusual.. 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. 

I07        SIZE:  3-3/8" w/ root  (1-5/8" 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. An extra large crown and root section. 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. 

I05        SIZE:  5" w/ root  (2-5/8" crown) 

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