Los Alamitos Formation
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| Los Alamitos Formation | |
|---|---|
| Stratigraphic range: Late Campanian-Maastrichtian ~ | |
| Type | Geological formation |
| Sub-units | Coli Toro Member |
| Lithology | |
| Primary | Siltstone |
| Other | Sandstone |
| Location | |
| Coordinates | Lua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value). |
| Approximate paleocoordinates | Lua error: callParserFunction: function "#coordinates" was not found. |
| Region | Río Negro Province |
| Country | Argentina |
| Extent | North Patagonian Massif |
Los Alamitos Formation (Argentina) | |
The Los Alamitos Formation is a geological formation of the North Patagonian Massif in Rio Negro Province, northwestern Patagonia, Argentina, whose strata date back to the Late Cretaceous (Late Campanian to Maastrichtian). Dinosaur remains are among the fossils that have been recovered from the formation.[1]
Fossil content
[edit | edit source]
Dinosaurs
[edit | edit source]| Genus | Species | Material | Notes | Images |
|---|---|---|---|---|
| Aeolosaurus | A. rionegrinus | A titanosaur. | ||
| Alamitornis | A. minutus | An ornithuromorph. | ||
| Huallasaurus | H. australis | "Partial skulls with associated postcrania, approximately [five] individuals." | A hadrosaur formally named "Kritosaurus" australis. | |
| cf. Hesperornithes | ||||
| Indeterminate theropod | ||||
| Indeterminate ornithurine | ||||
| Indeterminate avian |
Rhynchocephalians
[edit | edit source]| Genus | Species | Material | Notes | Images |
|---|---|---|---|---|
| Alamitosphenos | A. mineri | |||
| Kawasphenodon | K. expectatus |
Snakes
[edit | edit source]| Genus | Species | Material | Notes | Imaes |
|---|---|---|---|---|
| Alamitophis | A. argentinus |
Mammaliaforms
[edit | edit source]| Genus | Species | Material | Notes | Images |
|---|---|---|---|---|
| Alamitherium | A. bishopi | |||
| Austrotriconodon | A. sepulvedai | |||
| A. mckennai | ||||
| Leonardus | L. cuspidatus | |||
| Bondesius | B. ferox | |||
| Brandonia | B. intermedia | |||
| Casamiquelia | C. rionegrina | |||
| Ferugliotherium | F. windhauseni | |||
| Gondwanatherium | G. patagonicum | |||
| Groebertherium | G. novasi | |||
| Mesungulatum | M. houssayi | |||
| Paraungulatum | P. rectangularis | |||
| Reigitherium | R. bunodontum | |||
| Rougiertherium | R. tricuspes |
See also
[edit | edit source]References
[edit | edit source]- ^ Weishampel et al., 2004, "Dinosaur distribution (Late Cretaceous, South America).", pp.600-604
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ "Table 20.1," in Weishampel, et al.
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Bonaparte, 1999
- ^ Bonaparte & Soria, 1985
- ^ Bonaparte, 1990
Bibliography
[edit | edit source]- Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).