Alvarezsaurus

Alvarezsaurus
Temporal range: Late Cretaceous, 86–83 Ma
Skeleton restoration
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Family: Alvarezsauridae
Genus: Alvarezsaurus
Bonaparte, 1991
Species:
A. calvoi
Binomial name
Alvarezsaurus calvoi
Bonaparte, 1991
Synonyms

Alvarezsaurus (/ˌælvərɛzˈsɔːrəs/; "Alvarez's lizard") is a genus of alvarezsaurid dinosaur from the Late Cretaceous, living in Argentina approximately 86 - 83 million years ago. It was a small dinosaur, measuring 1–1.4 m (3.3–4.6 ft) long and weighing approximately 3 kg (6.6 lb).[1][2] It was found in the Bajo de la Carpa Formation and was named by paleontologist José Bonaparte in 1991 after the historian Don Gregorio Alvarez.[3] The type species is A. calvoi.

  1. ^ Holtz Jr., Thomas R. (2012). "Holtz's Genus List" (PDF).
  2. ^ Paul, Gregory S. (2010). The Princeton Field Guide to Dinosaurs (1st ed.). Princeton University Press. pp. 126. ISBN 978-0691137209. JSTOR j.ctt7sv5n.
  3. ^ Bonaparte, José F. (1991). "Los vertebrados fósiles de la formación Río Colorado, de la ciudad de Neuquén y cercanías, Cretácico Superior, Argentina" [The fossil vertebrates of the Colorado River formation, from the city of Neuquén and surroundings, Upper Cretaceous, Argentina]. Revista del Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Paleontología (in Spanish). 4 (3): 15–123. ISSN 0524-9511.