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Illustration of specimen YPM 1871E, the horn cores that were erroneously attributed to Bison alticornis, the first named specimen of Triceratops. The first named fossil specimen now attributed to Triceratops is a pair of brow horns attached to a skull roof that were found by George Lyman Cannon near Denver, Colorado, in the spring of 1887. [3]
There is evidence for an aggressive interaction between a Triceratops and a Tyrannosaurus in the form of partially healed tyrannosaur tooth marks on a Triceratops brow horn and squamosal (a bone of the neck frill); the bitten horn is also broken, with new bone growth after the break
The horns above the eyes were forward-curving and have been estimated at 80 cm (2.6 ft) long. The lower base of these horns was narrow and vertically directed, which with Triceratops is a juvenile trait. Three bite marks can be observed above the eye, near the base of the left horn, which were interpreted as traces of scavenging.
Horns and brow ridge Nomen dubium, originally misidentified as a species of Bison before being referred to Triceratops, now considered Triceratops sp. [207] An illustration of the holotype: Triceratops brevicornus: YPM 1834 [206] Yale Peabody Museum: Maastrichtian: Lance Formation, Wyoming: Partial skull [206] Junior synonym of T. horridus [206 ...
The function of their frills and three distinctive facial horns has long inspired debate. Although traditionally viewed as defensive weapons against predators, the latest theories explain how these features were probably primarily used in display for courtship and dominance, much like the antlers and horns of modern reindeer , mountain goats or ...
A previously unknown species of dinosaur finally has a name five years after the horned specimen’s discovery in Montana: Lokiceratops rangiformis.
Other research examining juvenile ceratopsians reveals a change in horn morphology over time, suggesting frills and horns could have been used for intraspecific communication of age. [30] Horns also could have been used for thermoregulation as indicated by isotope analysis , [ 31 ] as aid in knocking down vegetation, [ 32 ] or for horn-locking ...
Guard hair is more water resistant, and you will see water “beading up” on their fur if they get splattered. But Wait, There’s Four! Some cats have more down hair than other kinds, and so ...