Search results for: 'book arm teeth'

An ultra rare, LARGE, Top Quality Edestus heinrichi partial tooth whorl, from Herrin, Illinois. A July Fossil of the Month. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. An ultra rare triple crown whorl section with exceptional quality crowns. 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. 

I03        SIZE:  6-5/8" w/ root  (1-7/8" crown) 

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

A rare, EXTRA LARGE Top Quality Hexanchus collinsonae tooth, a Sixgill Cow shark, from the Muddy Creek / Fisher - Sullivan site, Virginia. A June Fossil of the Month. A lower jaw tooth with 9 primary cusps. Exceptional color and preservation. This is an Early Eocene (Ypresian) age, Nanjemoy Formation tooth. A special collector's Cow shark tooth. Authenticity guaranteed. 

MC953         Size: 11/16"

Note adding 15 Muddy Creek Cow shark teeth in June 2022.  --> Link to Muddy Creek Cow Shark teeth

An ultra rare, Top Quality Hexanchus collinsonae tooth, a Sixgill Cow shark, from the Muddy Creek / Fisher - Sullivan site, Virginia.  A lower jaw symphyseal tooth (male species) with 6 primary cusps. Exceptional color and preservation. This is an Early Eocene (Ypresian) age, Nanjemoy Formation tooth. A special collector's rare Cow shark tooth. Authenticity guaranteed. 

MC952         Size: 1/4"+

Note adding 15 Muddy Creek Cow shark teeth in June 2022.  --> Link to Muddy Creek Cow 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. An excellent matrix specimen that inludes the opposing tooth mold as well. 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. Note - shipping weight is 1.9 lbs. International "free shipping" will require supplemental postage.

I11        SIZE:  3" w/ root  (1-1/2" crown) ;  Matrix block is 3.5" x 3.5"

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. Note - this tooth has a lot of pyrite and the tip is naturally rounded (polished)  which thought to be due to the vertical whipping motion used to slice prey.  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. 

I09        SIZE:  4-1/8" w/ root  (1-7/8" crown) 

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

An ultra rare, Top Quality Hexanchus collinsonae tooth, a Sixgill Cow shark, from the Muddy Creek / Fisher - Sullivan site, Virginia. A June Fossil of the Month.  A lower jaw symphyseal tooth (female species) with 8 primary cusps. Exceptional color and preservation. This is an Early Eocene (Ypresian) age, Nanjemoy Formation tooth. A special collector's rare Cow shark tooth. Authenticity guaranteed. 

MC951         Size: 1/4"

Note adding 15 Muddy Creek Cow shark teeth in June 2022.  --> Link to Muddy Creek Cow Shark teeth

An ultra rare, Top Quality Edestus heinrichi associted pair of whorls, from Herrin, Illinois. A July Fossil of the Month. This is a Paleozoic shark that lived in swamps that our now underground coal deposits. An ultra rare assoiiated pair of tooth whorls. Note - the crown tips are naturally rounded (polished)  which thought to be due to wear from the vertical whipping motion used to slice prey. 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. This is the first associated whorl pait that I have seen.

I02        SIZE:  5" & 4-3/4" w/ root  (1-1/4"+ crowns) 

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

A Top Quality Edmontosaurus annectens ulna bone (lower front leg or "arm" bone) from the late Cretaceous of North America. An August Fossil of the Month. Edmontosaurus is a very large hadrosaur or "duck-bill" dinosaur found in the Hell Creek formation. They were mainly bipedal, but could walk on all four legs in search of food. This specimen is a excellent with no breaks and only minor crack fill. Bone quality is excellent. No restoration. Legally collected on private land in the Hell Creek Fm., Harding Co., So. Dakota. An excellent collector's quality Edmontosaurus ulna bone.  Authenticity guaranteed. An extra large ulna bone from an adult Edmontosaurus. Note - This items weighs 6.5 pounds and shipping surcharge will be applied to the "free shipping" offer.

DH71        SIZE: 24-1/4"  x  5"  x  3"    

Note - Adding 14 Edmontosaurus bones in August 2021.       Link to Edmontosaurus fossils catalog

An ultra rare, Top Quality Edestus heinrichi, a complete whorl with three crowns from Herrin, Illinois. A July Fossil of the Month. This is a Paleozoic shark that lived in swamp that our now underground coal deposits. Exceptional 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 to cut prey. It is the first animal to cut vertically with linear tooth whorls. A very strange looking and unique acting shark. This whorl is incredibly massive at 6" long with three crowns. The whorl body is well perserved with an excellent bright line of pyrite below the crown enamel. The crowns are large at 1-5/8" wide and look fantastic. Note - One crown tip has a small professional repair (~1/8") which is very common for a whorl. Pennsylvanian age from Illinois. Authenticity guaranteed. The Edestus shark recreation image is credited to Julio Lacerdo. These Edestus whorls are extremely rare. This whorl comes with a custon steel stand and  makes a fantastic display piece. My lowest price ever for a complete whorl! 

I01        SIZE:  6" whorl  (1-5/8"+ crowns)  ;  Height is 4-1/8" on stand.

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

A Top Quality Scyphocrinites elegans crinoid from Alnif, Morocco. The Scyphocrinites crinoid was a floating variety which was attached to a holdfast air bladder that supported multiple stems and calyx ("flower"). This crinoid has a bulbous calyx with incredible detail. This crinoid has a good sized stem section of 3". These crinoids make fantastic display pieces. Museum Quality specimen. Authenticity guaranteed. Matrix size: 6-3/8" x 4.25".  Note - Weighs 1.25 lbs - international shipping charge supplement required. Note - International customers will have discounted shipping. Please inquire.

M2056        SIZE: 6-3/8" x 4-1/4"

Name: Scyphocrinites elegans        Age: Upper Silurian (420 MMYA)        Location: Djebel Issoumour, Alnif, Morocco

Note - Adding four crinoids in October 2022.  ->   Link to Crinoids

A Top Quality Scyphocrinites elegans crinoid from Alnif, Morocco. The Scyphocrinites crinoid was a floating variety which was attached to a holdfast air bladder that supported multiple stems and calyx ("flower"). This crinoid has a bulbous calyx with incredible detail. This crinoid has a good sized stem section of 3". These crinoids make fantastic display pieces. Museum Quality specimen. Authenticity guaranteed. Matrix size: 5-1/2" x 4-3/4".  Note - Weighs 1.25 lbs - international shipping charge supplement required. Note - International customers will have discounted shipping. Please inquire.

M2055        SIZE: 5-1/2" x 3-1/2"

Name: Scyphocrinites elegans        Age: Upper Silurian (420 MMYA)        Location: Djebel Issoumour, Alnif, Morocco

Note - Adding four crinoids in October 2022.  ->   Link to Crinoids

A Top Quality Scyphocrinites elegans crinoid from Alnif, Morocco. The Scyphocrinites crinoid was a floating variety which was attached to a holdfast air bladder that supported multiple stems and calyx ("flower"). This crinoid has a bulbous calyx with incredible detail. This crinoid has a good sized stem section of 2-3/4". These crinoids make fantastic display pieces. Museum Quality specimen. Authenticity guaranteed. Matrix size: 6-7/8" x 4-3/4".  Note - Weighs 1.7 lbs - international shipping charge supplement required. Note - International customers will have discounted shipping. Please inquire.

M2054        SIZE: 6-7/8" x 3-1/2"

Name: Scyphocrinites elegans        Age: Upper Silurian (420 MMYA)        Location: Djebel Issoumour, Alnif, Morocco

Note - Adding four crinoids in October 2022.  ->   Link to Crinoids