Search results for: 'wide fossilized line fin mako tooth'

An incredible whole polished Cleoniceras ammonite showing the intricate external chamber structure. A gorgeous Cretaceous ammonite from Madagascar. Authenticity guaranteed. A great gift item. A chrome easel stand is included with this ammonite. Note - this item weighs more than 1.5 lbs. An international shipping surcharge can apply  to free shipping orders. 

X203       Size: 5-1/4"  (1-3/16" wide)

Note - Adding 15 Madagascar ammonites in December 2025  -->   Link to Madagascar ammonites

A LARGE, incredible natural Nautiloid ammonite from the Cretaceous of Madagascar. The aragonite shell is nicely articulated. Very wide (thick), fully inflated, and very heavy. Exceptional color and preservation. A gorgeous display item!  Authenticity guaranteed. Comes this the chrome steel stand as photographed. Note - This item weighs 6 lbs.  International customers will not have free shipping.

X276        Size: 5-5/8"   (4-1/4" wide)

Note - Adding 6 Madagascar ammonites in July 2023 -->   Link to Madagascar ammonites

A LARGE, incredible natural Nautiloid ammonite from the Cretaceous of Madagascar. The aragonite shell is nicely articulated. Very wide (thick), fully inflated, and very heavy. Exceptional color and preservation. A gorgeous display item!  Authenticity guaranteed. Comes this the chrome steel stand as photographed. Note - This item weighs 7.35 lbs.  International customers will not have free shipping.

X273        Size: 6-1/4"   (4-11/16" wide)

Note - Adding 6 large Madagascar ammonites in July 2023 -->   Link to Madagascar ammonites

A GEM creamy white Summerville Carcharocles chubutensis, the C. megalodon tooth predecessor - upper jaw Principal Anterior tooth. It has an incredible creamy white colored crown with an exceptional white bourlette. A gorgeous Summerville Chubutensis. An exceptional collector's tooth. Rare color! NO repair! The BEST of the BEST!

SC511            Size: 2-13/16"

An incredible whole polished Desmoceras ammonite showing the intricate external chamber structure. A new species with a larger suture pattern and very thick. A gorgeous Cretaceous ammonite from Madagascar. Authenticity guaranteed. A great gift item. A chrome easel stand is included with this ammonite. Note - this item weighs more than 1.2 lbs. An international shipping charge will apply. 

X221       Size: 3-1/2"  (1-1/4" wide)

Note - Adding 17 Madagascar ammonites in November 2024  -->   Link to Madagascar ammonites

An incredible whole polished Desmoceras ammonite showing the intricate external chamber structure. A new species with a larger suture pattern and very thick. A gorgeous Cretaceous ammonite from Madagascar. Authenticity guaranteed. A great gift item. A chrome easel stand is included with this ammonite. Note - this item weighs more than 1.3 lbs. An international shipping charge will apply. 

X220       Size: 4"  (1-1/2" wide)

Note - Adding 17 Madagascar ammonites in November 2024  -->   Link to Madagascar ammonites

A LARGE, TOP QUALITY Quenstedticeras lamberti ammonite from the Saratov region of Russia. Incredible pyrite replaced ammonite with a crystal lined interior. Excellent pyrite crystals!  Middle Jurassic age. Maximum size! Authenticity guaranteed. Note - supply of these pyrite ammonites stopped in 2011. This is the last of my inventory.

XR201      Size: 2-3/16"

Adding 8 pyritized Ammonites in November 2022.    Link to Pyritized ammonites.

An EXTRA LARGE TOP QUALITY, very rare Basilosaurus cetoides, an Archaeocete whale tooth found in the Suwanee River, Suwanee Co., Florida. An excellent canine tooth (see photo for tooth positions). A July Fossil of the Month. An excellent brown colored crown and root. Nicely articulated. Note - enamel tip shows a wear pattern on crown. Whales do not shed their teeth like the sharks so there teeth will wear with age. An Eocene age tooth (35 MYA).  No repair or restoration. A great Archaeocete tooth from the Suwanee River, Florida.  A very rare collector's tooth from an old collection.  A massive canine tooth!

F1001       SIZE: 5-1/16"  (1-1/2" wide)

Note - Adding a collection of 27 Basilosaurus teeth from Florida and Georgia in July 2023.   Link to Basilosaurus teeth.

An incredible whole polished Argonauticeras ammonite showing the intricate external chamber structure. This is a new species with extra large suture and extra thick. A gorgeous Cretaceous ammonite from Madagascar. Authenticity guaranteed. A great gift item. A chrome easel stand is included with this ammonite. Note - this item weighs more than 1.25 lbs. An international shipping charge will apply. 

X218       Size: 4-1/8"  (1-15/16" wide)

Note - Adding 6 Madagascar ammonites in December 2023  -->   Link to Madagascar ammonites

An ultra rare, Top Quality EXTRA LARGE Edestus heinrichi shark whorl section with 4 big crowns, from Sparta, Illinois. An August Fossil of the Month. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. Excellent preservation and serrations. Note - extra long root whorl section with 4 extra large crowns - very rare. 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 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. Four crown whorl sections are extremely rare! 

I01  BoP           SIZE: 2" teeth   (Whorl  6")

Adding 15 Edestus shark specimens in August 2020.    Link to Edestus shark.

An ultra rare, Top Quality EXTRA LARGE Edestus heinrichi shark whorl section with 3 big crowns, from Herrin, Illinois. An April Fossil of the Month. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. Excellent preservation and serrations. Note - extra long root whorl section with 3 extra large crowns - very rare. 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 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. Note - Two crown tips were professionally retored. Authenticity guaranteed. Three crown whorl sections are rare! 

I01 BoP2           SIZE: 1-3/4" teeth   (Whorl  7-1/4")

Adding 15 Edestus shark specimens in April 2021.    Link to Edestus shark.

 A GEM Sphryna lewini  tooth - the Scalloped Hammerhead shark. Very scarce.

ST153               SIZE: 1/4"