Allosauridae

Allosaurids
Temporal range: Late Jurassic, 155–145 Ma
An A. fragilis skeletal mount, at the Carnegie Museum of Natural History
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Superfamily: Allosauroidea
Family: Allosauridae
Marsh, 1878
Type species
Allosaurus fragilis
Marsh, 1877
Genera[1]
Synonyms
  • Antrodemidae Marsh, 1878
  • Labrosauridae Marsh, 1882

Allosauridae is an extinct family of medium to large bipedal, carnivorous allosauroid theropod dinosaurs from the Late Jurassic.[2] Allosauridae is a fairly old taxonomic group, having been first named by the American paleontologist Othniel Charles Marsh in 1878.[3] Allosaurids are characterized by an astragalus with a restriction of the ascending process to the lateral part of the bone, a larger medial than lateral condyle, and a horizontal groove across the face of the condyles.[4]

  1. ^ Carrano, M. T.; Benson, R. B. J.; Sampson, S. D. (2012). "The phylogeny of Tetanurae (Dinosauria: Theropoda)". Journal of Systematic Palaeontology. 10 (2): 211–300. doi:10.1080/14772019.2011.630927.
  2. ^ Carrano, Matthew T.; Benson, Roger B. J.; Sampson, Scott D. (2012-06-01). "The phylogeny of Tetanurae (Dinosauria: Theropoda)". Journal of Systematic Palaeontology. 10 (2): 211–300. doi:10.1080/14772019.2011.630927. ISSN 1477-2019.
  3. ^ Marsh, Othniel Charles (1878). "Notice of new dinosaurian reptiles". American Journal of Science and Arts. 15: 241–244.
  4. ^ Molnar, R. E.; Flannery, Timothy F.; Rich, Thomas H. V. (1981-01-01). "An allosaurid theropod dinosaur from the Early Cretaceous of Victoria, Australia". Alcheringa: An Australasian Journal of Palaeontology. 5 (2): 141–146. doi:10.1080/03115518108565427. ISSN 0311-5518.