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DROMAEOSAURUS

a meat-eating dromaeosaurid theropod dinosaur from the Late Cretaceous of Canada.
Dromaeosaurus
Pronunciation: DROH-mee-o-SOR-us
Meaning: Running lizard
Author/s: Matthew and Brown (1922)
Synonyms: None known
First Discovery: Alberta, Canada
Chart Position: 97

Dromaeosaurus albertensis

Although nominated to anchor its own family of dinosaurs — Dromaeosauridae — precious little is known of Dromaeosaurus, at least compared to some of its subordinate relatives. A partial skull, a handful of scrappy limb bits and bobs, and perhaps 4 dozen teeth represent the entirety of its remains. But if Barnum Brown hadn't become so totally bored of pulling T.rex remains out of baron badlands we may not have known Dromaeosaurus at all.

Update coming soon. Stay tuned...
Etymology
Dromaeosaurus is derived from the Greek "dromeus" (runner) and "sauros" (lizard).
The specific epithet, albertensis, is derived from "Alberta" (for Alberta, Canada) and the Latin "-ensis" (from, place of origin).
Discovery
The first fossils of Dromaeosaurus were discovered at "Little Sandhill Creek" (aka Sand Creek) in the Oldman Formation (Belly River Group), Red Deer River, Dinosaur Provincial Park, Alberta, Canada, by Barnum Brown in 1914.
The Holotype (AMNH 5356) consists of a partial skull 24 cm long, and some foot bones.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Campanian
Age range: 80-73 mya
Stats:
Est. max. length: 1.8 meters
Est. max. hip height: 0.6 meters
Est. max. weight: 35 Kg
Diet: Carnivore
Other Species
Eight other species of Dromaeosaurus have been named since 1922 and they're mostly based on teeth that were initially assigned to something else, could belong to something else, or have since been assigned to something else, albeit with a smidge of reservation. Given the fragmentary nature of these remains it comes as little suprise that the only species of Dromaeosaurus still classed as valid is the name-bearing Dromaeosaurus albertensis, but as historical curiosities here they are in all their, ahem, glory...
1. Dromaeosaurus explanatus (Matthew & Brown 1922), originally Laelaps explanatus (Cope 1876), is known from a few teeth.
2. Dromaeosaurus falculus (Matthew & Brown 1922), originally Laelaps falculus (Cope 1876), is known from a few teeth that have been linked to Aublysodon mirandus (Leidy 1868)... which Oliver Perry Hay renamed Ornithomimus mirandus in 1928.
3. Dromaeosaurus cristatus (Matthew & Brown 1922), originally Laelaps cristatus (Cope 1876), is known only from teeth.
4. Dromaeosaurus laevifrons (Matthew & Brown 1922), originally Laelaps laevifrons (Cope 1876), is known only from teeth that may belong to Dromaeosaurus cristatus.
5. Dromaeosaurus? gracilis (Matthew & Brown 1922), originally Coelurus gracilis (Marsh 1888), is known only from a tooth.
6. Dromaeosaurus? i.s. (Matthew & Brown 1922), originally Zapsalis abradens (Cope 1877), is known from a single tooth that may belong to Paronychodon lacustris... or maybe Richardoestesia.
7. Dromaeosaurus minutus (?), originally Ornithomimus minutus (Marsh 1892), is based on a metatarsus that Russell recognized as the property of an alvarezsaurid in 1972. It may belong to Mononykus.
8. Dromaeosaurus mongoliensis (Paul 1988) was originally known as Adasaurus mongoliensis (Barsbold 1983), and to most paleontologists it still is.
References
• William D. Matthew and Barnum Brown (1922) "The family Deinodontidae, with notice of a new genus from the Cretaceous of Alberta".
• Colbert, Edwin Harris, and Russell, Dale A (1969) "The small Cretaceous dinosaur Dromaeosaurus". (American Museum novitates No. 2380).
• John H. Ostrom (1969) "Osteology of Deinonychus antirrhopus, an unusual theropod from the Lower Cretaceous of Montana".
• M.A. Norell and P.J. Makovicky (2004) "Dromaeosauridae" in Weishampel, Dodson and Osmólska (eds.) "The Dinosauria: Second Edition".
• Philip J. Currie and Eva Bundgaard Koppelhus (2005) "New information on the anatomy and relationships of Dromaeosaurus albertensis (Dinosauria: Theropoda)".
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To cite this page:
Atkinson, L. "DROMAEOSAURUS :: from DinoChecker's dinosaur archive".
›. Web access: 25th Sep 2017.
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