Search results for: 'margin river'

A Top Quality Ankylosaur osteoderm (bony armor plate) from the late Cretaceous of northern North America. Ankylosaurus and Denversaurus, a Nodosaur, were the two Ankylosaurs present in the Hell Creek and Lance Creek Formations.  A complete body osteoderm plate from an adult Ankylosaur. The bone is exceptional quality with excellent color and patina. No hydrations cracks. No restoration. Legally collected on private land in the Hell Creek Fm., Harding Co., So. Dakota. Authenticity guaranteed. A fantastic collector's quality Ankylosaur osteoderm.  I do not see top quality ostederms very often.

DK29         SIZE: 3-1/2"  x  2-1/4"  Height of keel = 3/4"

Note - Adding 7 new Ankylosaur osteoderms in August 2025.       Link to Ankylosaur fossils catalog.

A LARGE, High Quality Ankylosaurus osteoderm (bony armor plate) from the late Cretaceous of northern North America. Ankylosaurus and Denversaurus, a Nodosaur, were the two Ankylosaurs present in the Hell Creek and Lance Creek Formations.  A complete body osteoderm plate from an adult Ankylosaurus. The bone is excellent quality with excellent color / patina. No cracks or restoration. Legally collected on private land in the Lance Creek Fm., Niobrara Co., Wyoming. Authenticity guaranteed. A collector's quality Ankylosaurus osteoderm. I do not see large ostederms very often.

DK26         SIZE: 5"  x  4-1/2"  x 5/8"

Note - Adding 7 new Ankylosaurus - Nodosaur osteoderms in August 2025.       Link to Ankylosaur fossils catalog.

A LARGE, Top Quality Ankylosaurus osteoderm (bony armor plate) from the late Cretaceous of northern North America. Ankylosaurus and Denversaurus, a Nodosaur, were the two Ankylosaurs present in the Hell Creek and Lance Creek Formations.  A complete body osteoderm plate from an adult Ankylosaurus. The bone is excellent quality with excellent color / patina. Well preserved vascular channels. No cracks or restoration. Legally collected on private land in the Lance Creek Fm., Niobrara Co., Wyoming. Authenticity guaranteed. A collector's quality Ankylosaurus osteoderm. I do not see large ostederms very often.

DK25         SIZE: 5"  x  3-3/4"  x 1/2"

Note - Adding 7 new Ankylosaurus - Nodosaur osteoderms in August 2025.       Link to Ankylosaur fossils catalog.

An ultra rare Top Quality Stegoceras validum dome (frontoparietal skull bone) from the late Cretaceous of northern North America. An April Fossil of the Month. Stegoceras is a smaller sized pachycephalosaurid dinosaur, and like Pachycephalosaurus, it is a dinosaur which is famous for its large domed head surrounded by spikes. This is excellent quality juvenile dome with good color / patina. No cracks or restoration. There is a small sheer on the left side that occured prior to fossilization since it has the natural patina. Otherwise a complete dome. An ultra rare Stegoceras dome!  Legally collected on private land in the Judith River Fm., Hill Co., Montana. An excellent collector's quality Stegoceras dome. Comes with a Riker display case. Authenticity guaranteed. You don't see Stegoceras domes very often. This is a very special, prefect little dome!  (Photo series = top, bottom, right side, left side, and rear).

DP50       SIZE: 2-5/8" x 2"   (1-1/2" thick)  

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

A QUALITY Hemipristis shark tooth from the Meherrin River copper red site, Hertford Co., No.Carolina. Lover jaw anterior position. Extra sharp serrations. These are Miocene age from the Pungo River Fm. Fantastic copper red color! Authenticity guaranteed.

NC402        SIZE: 1-1/2"

A Top Quality Timurlengia euotica tooth from the late Cretaceous (Turonian) in northern Central Asia. A June Fossil of the Month. Timurlengia was discovered in 2016 in the Bissekty Fm  (90 MYA), and it filled a gap in the Tyrannosaur family ancestry. This tooth measures 1-1/2" - an excellent Tyrannosaur tooth. The enamel is high quality with excellent color. Excellent anterior and posterior serrations. Serrated to the tip. Wide base at 5/8". No cracks, repair or restoration. Found in the Kyzylkum Desert, Uzbekistan. Authenticity guaranteed. A very rare and special collector's tooth. 

DY31         SIZE: 1-1/2"   (5/8" wide)

Note - Added 18 new Tyrannosaur teeth in June 2023.       Link to Tyrannosaur teeth catalog.

A rare Top Quality, BLUE Megalodon tooth - an upper jaw tooth from the Beaufort Co. land site,  So. Carolina. An incredible BLUE with a tan band at the base colored crown. Highest quality enamel. The bourlette is a gorgeous black color and 95% complete with very small serration bumps at the base - a near Chubutensis - an early Miocene Meg tooth The serrations are large and sharp. No repair or restoration. Authenticity guaranteed.  A special  color collector's Megalodon tooth. An excellent colorful Miocene land site Megalodon tooth!

SC020       Size: 3-1/8"

Note - Adding 18 new SC Megalodon teeth in March 2023  ->  Link to SC Megalodon teeth.

A Quality Black colored Megalodon tooth from So. Carolina with frame. Good color. These Megalodon teeth are great for gifts, class room, or starting your fossil shark tooth or Megalodon collection.  These Megs are Miocene age - about 15 MYA (Hawthorne Fm.) from So. Carolina unless otherwise marked. No repair or restoration.  Authenticity guaranteed.  Note - All larger "First Megalodon" teeth come with a 4-1/2"x 5-1/2" Riker frame with label (as photographed) plus an identification card.  Note - Be sure to see all of our My First Megalodon offerings. 

MFM10      Size: 2-9/16"

Note - Adding 19 new My First Megalodon teeth in October 2022  ->   Link to My First Megalodon

A Quality Gray colored Megalodon tooth from So. Carolina with frame. Good color. These Megalodon teeth are great for gifts, class room, or starting your fossil shark tooth or Megalodon collection.  These Megs are Miocene age - about 15 MYA (Hawthorne Fm.) from So. Carolina unless otherwise marked. No repair or restoration.  Authenticity guaranteed.  Note - All larger "First Megalodon" teeth come with a 4-1/2"x 5-1/2" Riker frame with label (as photographed) plus an identification card.  Note - Be sure to see all of our My First Megalodon offerings. 

MFM14      Size: 2-5/8"

Note - Adding 19 new My First Megalodon teeth in October 2022  ->   Link to My First Megalodon

A Top Quality Megalodon tooth from So. Carolina with frame. Great color. These Megalodon teeth are great for gifts, class room, or starting your fossil shark tooth or Megalodon collection.  These Megs are Miocene age - about 15 MYA (Hawthorne Fm.) from So. Carolina unless otherwise marked. No repair or restoration.  Authenticity guaranteed.  Note - All larger "First Megalodon" teeth come with a 4-1/2"x 5-1/2" Riker frame with label (as photographed) plus an identification card.  Note - Be sure to see all of our My First Megalodon offerings. 

MFM20        Size: 2-1/2"

Note - Adding 19 new My First Megalodon teeth in November 2023  ->   Link to My First Megalodon

A Top Quality Megalodon tooth from So. Carolina with frame. Great color. These Megalodon teeth are great for gifts, class room, or starting your fossil shark tooth or Megalodon collection.  These Megs are Miocene age - about 15 MYA (Hawthorne Fm.) from So. Carolina unless otherwise marked. No repair or restoration.  Authenticity guaranteed.  Note - All larger "First Megalodon" teeth come with a 4-1/2"x 5-1/2" Riker frame with label (as photographed) plus an identification card.  Note - Be sure to see all of our My First Megalodon offerings. 

MFM19        Size: 2-3/8"

Note - Adding 19 new My First Megalodon teeth in November 2023  ->   Link to My First Megalodon

A Top Quality Megalodon tooth from So. Carolina with frame. Great color. These Megalodon teeth are great for gifts, class room, or starting your fossil shark tooth or Megalodon collection.  These Megs are Miocene age - about 15 MYA (Hawthorne Fm.) from So. Carolina unless otherwise marked. No repair or restoration.  Authenticity guaranteed.  Note - All larger "First Megalodon" teeth come with a 4-1/2"x 5-1/2" Riker frame with label (as photographed) plus an identification card.  Note - Be sure to see all of our My First Megalodon offerings. 

MFM18        Size: 2-7/16"

Note - Adding 19 new My First Megalodon teeth in November 2023  ->   Link to My First Megalodon