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Bambiraptor is a Late Cretaceous, 72-million-year-old, bird-like dromaeosaurid theropod dinosaur described by scientists at the University of Kansas, Yale University, and the University of New Orleans.
Foot of an assigned S. langstoni specimen. Two more complete and larger partial skeletons (RTMP 88.121.39 and MOR 660), dozens of isolated bones, and scores of teeth are known from the badlands of Dinosaur Provincial Park in Alberta; most of these are housed at the Royal Tyrrell Museum of Palaeontology, in Drumheller, Alberta and remain undescribed.
An outcrop of the Cloverly Formation. The Crow people and other Native American groups inhabiting Montana used to use rocks from the Cloverly Formation to make red pigments. . Since the red pigments are richest in the same layers of the formation that preserve dinosaur fossils, it is likely that Native Americans encountered Deinonychus fossils long before scientifically trained paleontolog
Caihong was a rather small dinosaur. Its length was estimated at 40 cm (16 inches), and its weight at 475 grams (16.8 oz). [ 1 ] It is estimated to have a wingspan of approximately 44 cm (17 in), given that the wingspan is about 2.1 times the wing length which is about 21 cm (8.3 in).
A study on the diversification of non-avian dinosaurs, inferred from available dinosaur phylogenies, is published by Allen et al. (2024), who find it impossible to decisively conclude whether dinosaurs experienced a decline in diversity before the Cretaceous–Paleogene extinction event on the basis of available data, noting the impact of the ...
Utahraptor (red, right) and other dinosaur fauna from the Cedar Mountain Formation Utahraptor was unearthed from the Yellow Cat Member, which during the Berriasian to Late Valanginian was a semiarid area with floodplain prairies, riverine forests, and open woodlands predominated by conifers ( Pinophyta ), ferns ( Polypodiopsida ), hornworts ...
What type of dinosaur it belonged to is unknown, but there have been suggestions that it was from Allosaurus. "Beelemodon": Known only from two teeth found in Wyoming. They share features of compsognathids, dromaeosaurids and basal oviraptorosaurs. "Capitalsaurus": The official dinosaur of the District of Columbia. It is known from a single ...
The closest is the Dinosaur Genera List, compiled by biological nomenclature expert George Olshevsky, which was first published online in 1995 and was regularly updated until June 2021. [ 1 ] [ 2 ] The most authoritative general source in the field is the second (2004) edition of The Dinosauria .