Search results for: 'alta 15 sperm with replacement first'

A Top Quality, Rare Pachychephalosaurus wyomingensis spike from the late Cretaceous of northern North America. A complete node with good articulation. Pachychephalosaurus is the dinosaur which is famous for its large domed head surrounded by these spikes and nodes. These spikes and nodes were part of the Pachy skull. This spike has excellent color / patina. It is a complete specimen with no cracks or breaks. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. An excellent collector's quality Pachychephalosaurus spike. You don't see these skull pieces very often. No repair or restoration. Authenticity guaranteed.

DP32       SIZE: 1-3/8" Height   (Base: 1-1/8" x 15/16") 

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

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 rare, Top Quality ~5" CLASSIC Chile Megalodon tooth from the sand layer, Bahia Inglesa Fm., Caldera area, Chile. A March Fossil of the Month. An excellent light tan colored crown with no enamel peel. Good quality enamel. The bourlette has a nice mahogany brown color and is 100% complete. The serrations are sharp with some damage. The root is excellent tan color and extra wide with a small sliver of damage on the side of the root. Good "eye appeal". Great symmetry. No repair or restoration. A rare Chilean Megalodon tooth from the old days! Note - these incredible Chilean collector's Megs simply do not exist any more! Authenticity guaranteed. Unfortunately there are no more teeth coming from this site! Check out my new Blog - The Best of Chile - Shark Teeth   https://www.buriedtreasurefossils.com/blog/post/the-best-of-chile-fossil-shark-teeth/

C104  BoP     Size:  4-15/16"  (4" W)

Link to Chile Megs

A Devonian sea floor slab with a Eldredgops (Phacops) rana milleri trilobite from the Silica Shale Formation of Ohio. The also three large pyrite replaced Paraspirifer bownockeri brachiopods, three Mucrospirifer mucronatus brachiopods, and other specimens. The Eldredgops has excellent detail on the compound eyes - very well preserved. The quality of the Silica Shale Fm. fossils are incredible. A rare sea floor specimen from the Middle Devonian (380 mya), Silica Shale Fm. from Lucas Co., Ohio. You don't see multi-species slabs for sale. A Museum Quality specimen. One of my favorites!  Note - This item weighs 9 lbs. An international shipping surcharge will be applied to "Free Shipping". Please inquire for cost.

X101      Eldredgops  Size: 1-3/4"   ;    Paraspirifer  Size: 2-1/4" ;      Mucrospirifer Size: 1-1/8"

Note - Posting 5 trilobites in December 2021.  ->  Link to US Trilobites.

A rare Top Quality Globidens aegypticus Mosasaur tooth from the phosphate mining area near Amman, Jordan. Excellent condition and preservation. No repair or restoration. Complete tooth.  These teeth are late Cretaceous age.  Note - this Mosasaur is renamed to the Prognathodon genus. Authenticity guaranteed. Rare location!

J221            SIZE: 1-1/16"  W

A HIGH QUALITY 4-11/16" Carcharodontosaurus tooth from the Kem Kem deposits of Morocco. This tooth is huge with a 4" crown! An excellent golden brown color. High quality enamel. Excellent overall quality and preservation. Very good anterior and posterior serrations. Excellent growth waves near cutting edge. Large position tooth in jaw - extra wide crown. Absolutely no cracks running across the tooth. There is an one inch area on the reverse side that must of lifted and it was stabilized. No restoration. This is an all natural tooth which is quite rare for a XXL Carch tooth. A Museum Quality EXTRA LARGE tooth. Serrated edge measures 4". Authenticity guaranteed! This monster Carcharodontosaurus tooth - you rarely see a 4" crown!

M1201  BoP      SIZE: 4-11/16" (1-1/2" W) - straightline measurement!

Note - Adding 15 Carcharodontosaurus teeth in Mar. 2020 ->  Link to Carchardontosaurus teeth

A rare Top Quality, BIG CLASSIC Chile Megalodon tooth from the phosphate layer, Bahia Inglesa Fm., Caldera area, Chile. This tooth is nicely displayed on its original phosphorite matrix. Note - the pebbly phosphorite makes an interesting base which elevates the tip about 15 degress for a great display. A gorgeous light tan colored crown with no enamel peel. High quality enamel with very light mineral staining (as shown). The bourlette is an excellent deep mahogany brown color, large and 85% complete. The serrations are razor sharp and complete with an excellent tip serration. The root is rich red-brown color, extra wide (5") with excellent surface articulation, and 100% complete. Fantastic color. Exceptional "eye appeal". Great symmetry. No repair or restoration. A Museum Quality BIG Chilean Megalodon tooth from the old days! Note - these incredible BIG Chilean collector's Megs simply do not exist any more! Great display. Authenticity guaranteed. A fantastic display. Unfortunately there are no more teeth coming from this site!

C101 BoP      Size:  6-3/8"  (5" W)

Note - Adding two Chilean Megs in Feb. 2020.  ->  Link to Chile Megs