Los Alamitos Formation

Los Alamitos Formation
Stratigraphic range: Late Campanian-Maastrichtian
Type Geological formation
Sub-units Coli Toro Member
Location
Region Río Negro Province
Country  Argentina

The Los Alamitos Formation is a geological formation in Rio Negro Province, Argentina, whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1]

Vertebrate paleofauna

Dinosaurs

Non-avian Dinosaurs reported from the Los Alamitos Formation
Genus Species Location Stratigraphic position Material Notes Images

Aeolosaurus

A. rionegrinus

Secernosaurus (="Kritosaurus" australis[2])

S. koerneri

 "Partial skulls with associated postcrania, approximately [five] individuals."[3]

Indeterminate Theropod

Birds

Birds reported from the Los Alamitos Formation
Genus Species Location Stratigraphic position Material Notes Images

Alamitornis

A. minutus

Cf. Hesperornithes

Indeterminate Ornithurine

Indeterminate Avian

Mammaliaforms

Mammaliaforms reported from the Los Alamitos Formation
Genus Species Location Stratigraphic position Material Notes Images

Austrotriconodon
  • A. sepulvedai
  • A. mckennai

Reigitherium

 R. bunodontum Bonaparte, 1990

Ferugliotherium

 F. windhauseni

Gondwanatherium

 G. patagonicum

Bondesius

 B. ferox

Groebertherium

 G. novasi

Leonardus

 L. cuspidatus

Mesungulatum

 M. houssayi Bonaparte & Soria, 1985

Paraungulatum

 P. rectangularis

Brandonia

 B. intermedia

Casamiquelia

 C. rionegrina

Alamitherium

 A. bishopi Bonaparte, 1999

Rougiertherium

 R. tricuspes

See also

References

  1. ↑ Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, South America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 600-604. ISBN 0-520-24209-2.
  2. ↑ Prieto–Marquez, Alberto; Salinas, Guillermo C. (2010). "A re–evaluation of Secernosaurus koerneri and Kritosaurus australis (Dinosauria, Hadrosauridae) from the Late Cretaceous of Argentina". Journal of Vertebrate Paleontology. 30 (3): 813–837. doi:10.1080/02724631003763508.
  3. ↑ "Table 20.1," in Weishampel, et al.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.