5.3" Fossil Ceratopsian (Achelosaur) Caudal Vertebra - Montana

This is a 5.3" Ceratopsian (Achelosaur) caudal (tail) vertebra from the Two Medicine Formation Montana. The cortical bone is fairly weathered, however there is no indication of any repair or restoration to the vertebra. A neat feature of this specimen is the vertebral arch that remained intact through the preservation process. The rock it was found in has been left within the vertebral foramen to ensure structural integrity.

Comes with the pictured metal display stand.


Ceratopsians are a group of plant-eating dinosaurs from the Cretaceous characterized by a bony frill on the back of the skull and a unique upper beak bone, called a rostral. Ceratopsians ranged in size from 1 meter (3 ft) and 23 kilograms (50 lb) to over 9 meters (30 ft) and 9,100 kg (20,100 lb). Triceratops is by far the best-known ceratopsian to the general public.

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DETAILS
SPECIES
Achelosaur sp.
LOCATION
Pondera County, Montana
FORMATION
Two Medicine Formation
SIZE
5.3 x 4.2", 7.1" tall on stand
CATEGORY
SUB CATEGORY
ITEM
#131993
GUARANTEE
We guarantee the authenticity of all of our specimens.