Ankylosaurs

Ankylosaurs and the Nodosaurs, their cousins, are the familiar armored dinosaurs from the late Cretaceous period. They were covered with osteoderms or boney plates of protective armor, and the Ankylosaurs had a clubbed tail for added defense. The Ankylosaurs and the Nodosaurs were large. Ankylosaurus, the largest Ankylosaur, reached lengths up to 30 feet and weight to 17000 lbs. Edmontonia, a Nodosaur, reached lengths of 22 feet and weighed up to 7000 lbs. These dinosaurs were built close to the ground, wide barrel-chested, and quadrupedal. You can see them referred as the “tanks” of the dinosaur world, and would be quite challenging for a Tyrannosaur or raptor to attack; especially, the Ankylosaurs with their club tails. Many Tyrannosaurs including Tyrannosaurus rex have been found with broken and healed leg fractures. Those dinosaurs may have survived an encounter with an Ankylosaur.
Ankylosaurs and the Nodosaurs were herbivores. They had good sized teeth for cutting or nipping low lying vegetation. Today, we find their fossilized teeth, osteoderms (armor plates), and bones. We have a great assortment of Ankylosaurus fossils for sale. Note – Ankylosaurus was a rare species composing of only 1% of the dinosaurs species found in the Hell Creek Formation. Authenticity guaranteed.
Species include the following –
Ankylosaurus magniventris – the largest Ankylosaur, Hell Creek Formation; 67-66 mya
Denversaurus schlessmani - a nodosaurid ankylosaurian dinosaur, Hell Creek Formation; 67-66 mya
Euplocephalus tutus – an Ankylosaur, Judith River / Two Medicine / Horseshoe Canyon Fm.; 76-75 mya
Edmontia rugosidens – a Nodosaur, Judith River / Two Medicine / Horseshoe Canyon Fm.; 77-69 mya
- Ankylosaurus scute$1,175.00
An EXTRA LARGE, Top Quality Ankylosaurus osteoderm (bony armor plate) from the late Cretaceous of northern North America. A June Fossil of the Month. Ankylosaurus magniventris was the largest Ankylosaur which grew to 30 feet and 17000 pounds, and a body covered with this bony armor. A complete body osteoderm plate from an adult Ankylosaurus. The bone is excellent quality with excellent color and patina. Typical hydrations cracks only. No restoration. Legally collected on private land in the Hell Creek Fm., Garfield Co., Montana. Authenticity guaranteed. A fantastic collector's quality Ankylosaur osteoderm.
DK25 SIZE: 5-1/2" x 5-1/4"
Note - Adding 9 new Ankylosaur - Nodosaur fossils in June 2024. Link to Ankylosaur fossils catalog.
Learn More - Ankylosaurus scute$750.00
A LARGE, Top Quality Ankylosaurus osteoderm (bony armor plate) from the late Cretaceous of northern North America. Ankylosaurus magniventris was the largest Ankylosaur which grew to 30 feet and 17000 pounds, and a body covered with this bony armor. A complete body osteoderm plate from an adult Ankylosaurus. The bone is excellent quality with excellent color and patina. Typical hydrations cracks only. No restoration. Legally collected on private land in the Hell Creek Fm., Garfield Co., Montana. Authenticity guaranteed. A fantastic collector's quality Ankylosaur osteoderm.
DK25 SIZE: 4-1/2" x 4-1/2"
Note - Adding 9 new Ankylosaur - Nodosaur fossils in June 2024. Link to Ankylosaur fossils catalog.
Learn More - Ankylosaurus$495.00
A rare, Top Quality Ankylosaurus magniventris partially rooted tooth from the late Cretaceous of North America. Ankylosaurus magniventris was the largest Ankylosaur which grew to 30 feet and 17000 pounds. Note - These incredibly sized dinosaurs had small teeth. The enamel is the highest quality with excellent color / patina. The crown has a little wear facet. No cracks or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. An excellent collector's quality Ankylosaur tooth. Note - tooth comes with the gem case pictured.
DK09 SIZE: 5/16" (3/16" wide)
Note - Adding 9 new Ankylosaur / Nodosaur fossils in June 2024. Link to Ankylosaur fossils catalog.
Learn More - Ankylosaurus$575.00
A rare, Top Quality Ankylosaurus magniventris partially rooted tooth from the late Cretaceous of North America. Ankylosaurus magniventris was the largest Ankylosaur which grew to 30 feet and 17000 pounds. Note - These incredibly sized dinosaurs had small teeth and this rooted tooth is from a sub adult Ankylosaurus. The enamel is the highest quality with excellent color / patina. The crown has a very small wear facet. No cracks or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. An excellent collector's quality Ankylosaur tooth. Note - tooth comes with the gem case pictured.
DK10 SIZE: 1/4" (3/16" wide)
Note - Adding 9 new Ankylosaur / Nodosaur fossils in June 2024. Link to Ankylosaur fossils catalog.
Learn More - Ankylosaurus$495.00
A rare, Top Quality Ankylosaurus magniventris tooth from the late Cretaceous of North America. Ankylosaurus magniventris was the largest Ankylosaur which grew to 30 feet and 17000 pounds. Note - These incredibly sized dinosaurs had small teeth. The enamel is very good quality with excellent color / patina. The crown has little wear. No cracks or restoration. Legally collected on private land in the Hell Creek Fm., Carter Co., Montana. Authenticity guaranteed. An excellent collector's quality Ankylosaur tooth. Note - tooth comes with the gem case pictured.
DK08 SIZE: 3/8" (1/4" wide)
Note - Adding 16 new Ankylosaur / Nodosaur fossils in January 2023. Link to Ankylosaur fossils catalog.
Learn More - Denversaurus - Nodosaur$375.00
A LARGE, Top Quality Denversaurus schlessmani tooth from the late Cretaceous of North America. Denversaurus schlessmani was the large Nodosaur which grew to 20 feet and 6000 pounds. The enamel is excellent quality with excellent color / patina. Crown has normal feeding wear. No cracks or restoration. Legally collected on private land in the Hell Creek Fm., Carter Co., Montana. Authenticity guaranteed. An excellent collector quality large Denversaurus tooth. Note - tooth comes with the gem case pictured.
DK01 SIZE: 9/16" (7/16" Wide)
Note - Adding 16 new Ankylosaur - Nodosaur fossils in January 2023. Link to Ankylosaur fossils catalog.
Learn More - Denversaurus - Nodosaur$350.00
A LARGE, Top Quality Denversaurus schlessmani tooth from the late Cretaceous of North America. Denversaurus schlessmani was the large Nodosaur which grew to 20 feet and 6000 pounds. The enamel is excellent quality with excellent color / patina. Crown has normal feeding wear. No cracks or restoration. Legally collected on private land in the Hell Creek Fm., Garfield Co., Montana. Authenticity guaranteed. An excellent collector quality large Denversaurus tooth. Note - tooth comes with the gem case pictured.
DK03 SIZE: 9/16" (7/16" Wide)
Note - Adding 16 new Ankylosaur - Nodosaur fossils in January 2023. Link to Ankylosaur fossils catalog.
Learn More - Denversaurus - Nodosaur$275.00
A Top Quality Denversaurus schlessmani tooth from the late Cretaceous of North America. Denversaurus schlessmani was the large Nodosaur which grew to 20 feet and 6000 pounds. The enamel is very good quality with excellent color / patina. Crown has normal feeding wear. No cracks or restoration. Legally collected on private land in the Hell Creek Fm., Carter Co., Montana. Authenticity guaranteed. An excellent collector quality large Denversaurus tooth. Note - tooth comes with the gem case pictured.
DK04 SIZE: 7/16" (7/16" Wide)
Note - Adding 16 new Ankylosaur - Nodosaur fossils in January 2023. Link to Ankylosaur fossils catalog.
Learn More - Denversaurus - Nodosaur$150.00
A High Quality Denversaurus schlessmani tooth from the late Cretaceous of North America. Denversaurus schlessmani was the large Nodosaur which grew to 20 feet and 6000 pounds. The enamel is very good quality with excellent color / patina. Crown has normal feeding wear. No cracks or restoration. Legally collected on private land in the Hell Creek Fm., Garfield Co., Montana. Authenticity guaranteed. An excellent collector quality large Denversaurus tooth. Note - tooth comes with the gem case pictured.
DK06 SIZE: 3/8" (3/8" Wide)
Note - Adding 16 new Ankylosaur - Nodosaur fossils in January 2023. Link to Ankylosaur fossils catalog.
Learn More - Edmontonia - Nodosaur$325.00
A Large, Top Qaulity Edmontonia rugosidens tooth from the late Cretaceous of northern North America. Edmontonia rugosidens was a large Nodosaur which grew to 20 feet and 6000 pounds. The enamel is very good quality with good color / patina. Very little natural wear. No cracks or restoration. ~76 MYA. Legally collected on private land in the Judith River Fm., Wheatfield Co., Montana. Authenticity guaranteed. A collector's quality Nodosaur tooth. Note - tooth comes with the gem case pictured.
DK20 SIZE: 7/16" (3/8" Wide)
Note - Adding 16 new Ankylosaur - Nodosaur fossils in January 2023. Link to Ankylosaur fossils catalog.
Learn More - Edmontonia - Nodosaur$245.00
An Extra Large Edmontonia rugosidens tooth from the late Cretaceous of northern North America. Edmontonia rugosidens was a large Nodosaur which grew to 20 feet and 6000 pounds. The enamel is very good quality with excellent color / patina. Some natural wear. No cracks or restoration. ~76 MYA. Legally collected on private land in the Judith River Fm., Wheatfield Co., Montana. Authenticity guaranteed. A collector's quality Nodosaur tooth. Note - tooth comes with the gem case pictured.
DK13 SIZE: 9/16" (7/16" Wide)
Note - Adding 14 new Ankylosaur - Nodosaur fossils in December 2021. Link to Ankylosaur fossils catalog.
Learn More - Edmontonia - Nodosaur$145.00
A High Quality, Large Edmontonia rugosidens tooth from the late Cretaceous of northern North America. Edmontonia rugosidens was a large Nodosaur which grew to 20 feet and 6000 pounds. The enamel is very good quality with excellent color / patina. Tooth exhibits natural wear. No cracks or restoration. ~76 MYA. Legally collected on private land in the Judith River Fm., Hill Co., Montana. Authenticity guaranteed. A collector's quality Nodosaur tooth. Note - tooth comes with the gem case pictured.
DK17 SIZE: 7/16" (5/16" W)
Note - Adding 14 new Ankylosaur - Nodosaur fossils in December 2021. Link to Ankylosaur fossils catalog.
Learn More