Caulodon Facts
Pronunciation: CALL-oh-don
Name meaning: Stem tooth
| Diet | Herbivore |
| Height | 4m |
| Length | 15m |
| Weight | 12 tonnes |
| Environment | Land |
| Era | Jurassic |
| Period | Middle Jurassic |
| Type | Sauropod |
| Location | North America |
Caulodon is a problematic sauropod genus known only from fragmentary tooth remains discovered during the height of the 19th-century 'Bone Wars' between rival palaeontologists. Originally described by Othniel Charles Marsh in 1877, this dinosaur lived during the Middle to Late Jurassic period, approximately 161.5 to 149.2 million years ago, in what is now the western United States.
Based on the limited dental evidence and its classification within Camarasauridae, Caulodon would have been a typical sauropod with the characteristic long neck, small head, massive body, and long tail. Like other members of this family, it likely stood about 4 metres tall at the hip and measured approximately 15 metres in length, weighing around 12 tonnes. The teeth that define this genus suggest it was adapted for stripping vegetation from trees and bushes.
As a herbivorous sauropod, Caulodon would have spent most of its time feeding on conifers, ferns, and cycads that dominated the Jurassic landscape. Its long neck would have allowed it to reach vegetation at various heights without moving its massive body, making feeding more energy-efficient. However, the extremely fragmentary nature of the fossil evidence means that much about this dinosaur remains uncertain.
The validity of Caulodon as a distinct genus has been questioned by modern palaeontologists, as the tooth remains are too incomplete to definitively separate it from other known sauropods of the Morrison Formation, such as Camarasaurus or Diplodocus.
What made Caulodon distinctive?
Caulodon is distinguished primarily by its tooth morphology, though the fragmentary nature of the remains makes definitive identification difficult. The teeth appear to have been spatulate and adapted for plant processing, similar to other camarasaurid sauropods.
Behaviour
Like other sauropods, Caulodon likely lived in herds and migrated seasonally in search of food. It would have used its long neck to browse vegetation at different heights, possibly rearing up on its hind legs to reach the tallest trees.
Discovery
Caulodon was first described by Othniel Charles Marsh in 1877. The original fossils were discovered at Morrison Formation, Colorado, USA.
Caulodon FAQ
What did Caulodon eat?
Caulodon was a herbivore that fed on the plants available during the Jurassic period, including conifers, ferns, cycads, and other vegetation. Its teeth were adapted for stripping and processing plant material rather than chewing.
How big was Caulodon?
Based on comparisons with related sauropods, Caulodon likely stood about 4 metres tall at the hip, measured approximately 15 metres in length, and weighed around 12 tonnes. However, these estimates are uncertain due to the fragmentary fossil evidence.
When did Caulodon live?
Caulodon lived during the Middle to
Late Jurassic period, approximately 161.5 to 149.2 million years ago, during a time when sauropod dinosaurs dominated many ecosystems.
Where was Caulodon found?
Caulodon fossils were discovered in the Morrison Formation of Colorado, USA, one of the world's most famous dinosaur-bearing rock formations that has yielded numerous Jurassic dinosaur species.
How do you pronounce Caulodon?
Caulodon is pronounced 'CALL-oh-don', with emphasis on the first syllable. The name comes from Greek words meaning 'stem tooth'.
What does Caulodon mean?
Caulodon means 'stem tooth' in Greek, referring to the stem-like appearance of the tooth remains that were used to define this genus when it was first described in 1877.
How fast could Caulodon run?
Like most large sauropods, Caulodon was not built for speed. Its massive size and quadrupedal body plan suggest it moved relatively slowly, likely at walking pace rather than running.
What type of dinosaur was Caulodon?
Caulodon was a sauropod dinosaur, belonging to the family Camarasauridae. However, its validity as a distinct genus is questionable due to the fragmentary nature of the fossil evidence.
Was Caulodon related to birds?
As a sauropod, Caulodon was only distantly related to birds. Birds evolved from theropod dinosaurs, while sauropods like Caulodon belonged to a different major group of dinosaurs called sauropodomorphs.
How many Caulodon fossils have been found?
Very few Caulodon fossils have been found - only fragmentary tooth remains from the original 1877 discovery. No additional specimens have been definitively assigned to this genus, contributing to doubts about its validity.
