-40%
Large Rare Ceratopsian Dinosaur Tooth Fossil Judith River Formation MT
$ 17.41
- Description
- Size Guide
Description
This listing is for a large rare Ceratopsian dinosaur tooth from the Judith River Formation of Valley County in Northern MT.The tooth has great detail and is a spit tooth which fell out of the dinosaur's mouth during life and feeding. There is still some sediment on the tooth which could be easily worked off with a dental tool or xacto knife.
There are a host of different Ceratopsians described from this formation, so it is hard to say which it is from. There is a list below of possibilities.
Comes with its own gem display case and COA upon request!
The Judith River Formation dates back to the Late Cretaceous approximately 75 million years in age. It represent the coastline of an ancient sea that spanned across the middle of North American during much of the Mesozoic Era. That is why dinosaur remains are so common in the American West, those areas were the ancient floodplains of a seaway that no longer exists.
Ornithischian dinosaurs
[
edit
]
Ornithischians
reported from the Judith River Formation
Genus
Species
Location
Stratigraphic position
Material
Notes
Images
Albertaceratops
A. nesmoi
[7]
Reclassified as
Medusaceratops lokii
Avaceratops
Brachylophosaurus
Edmontonia
Judiceratops
Medusaceratops
Mercuriceratops
Monoclonius
Probrachylophosaurus
Spiclypeus
Zuul
Avaceratops
A. lammersi
[7]
"[Two] partial skulls, skeleton, juvenile,"
[8]
type specimen
A ceratopsid
Brachylophosaurus
B. canadensis
A hadrosaurid which was one of the more common dinosaurs in the area.
[9]
Ceratops
C. montanus
"
occipital condyle
, paired horn cores,"
[10]
type specimen
A dubious ceratopsid
Diclonius
D. calamarius
"Teeth."
[11]
Nomen dubium
D. pentagonius
"Fragmentary dentary with teeth,"
[11]
type specimen
A dubious hadrosaurid
D. perengulatus
"Teeth."
[11]
Nomen dubium
Dysganus
D. bicarinatus
"Isolated teeth."
[10]
Nomen dubium
D. encaustus
"Single tooth and [five] tooth fragments."
[11]
"Isolated teeth."
[10]
Nomen dubium
D. haydenianus
"Isolated teeth."
[10]
Nomen dubium
D. peiganus
"Tooth."
[10]
Nomen dubium
Edmontonia
E
.
longiceps
Isolated teeth
[12]
Hadrosaurus
H. paucidens
Reclassified as
Lambeosaurus
?
paucidens
Judiceratops
[13]
J. tigris
[13]
A ceratopsid
?"
Kritosaurus
"
?"K."
breviceps
A dubious hadrosaurid
?
Lambeosaurus
?
L. paucidens
"Squamosal, maxilla."
[11]
Nomen
dubium.
An indeterminate lambeosaurine.
[14]
Medusaceratops
M. lokii
[15]
Bonebed
[15]
A ceratopsid
Mercuriceratops
M. gemini
[16]
"one apomorphic squamosal"
[16]
A ceratopsid
Monoclonius
M. crassus
[7]
"[Five] skulls, [one] complete."
[8]
Type specimen
A dubious ceratopsid
Paleoscincus
P. costatus
"Tooth,"
[17]
type specimen
A dubious ankylosaur
Probrachylophosaurus
P. bergei
A
brachylophosaurin
hadrosaur
Pteropelyx
P. grallipes
"Skeleton lacking skull."
[18]
A dubious hadrosaurid
Trachodon
T. mirabilis
Isolated teeth,
type specimen
A dubious hadrosaurid
Spiclypeus
S. shipporum
Partial skull, vertebrae, ribs, humerus, ilium, femur, tibia, and fibula.
A ceratopsid
Zuul
Z. crurivastator
Cranial and postcranial skeletal remains and soft tissue,
type specimen
An ankylosaurid