Cerro de los Leones, level 4: Early/Lower Albian, Argentina
collected by J. F. Bonaparte 1997-2004
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Testudinata
- Chelidae
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Chelidae indet.
Lindholm 1929
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turtle |
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Reptilia
- Dinosauria
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Theropoda indet.
(Marsh 1881)
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1 individual | theropod |
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| MCF-PVPH-738, 13 partially articulated caudal vertebrae | ||||||||||
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Reptilia
- Archosauria
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Mesoeucrocodylia indet.
Whetstone and Whybrow 1983
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1 individual | archosaur |
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| MCF-PVPH-735, angular/dentary, four dorsal vertebrae, three osteoderms, other skeletal fragments | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Neuquén |
| Coordinates: | 39.6° South, 69.4° West (view map) | ||
| Paleocoordinates: | 45.4° South, 41.7° West | ||
| Basis of coordinate: | estimated from map | ||
| Altitude: | 445 meters | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
| Key time interval: | Early/Lower Albian | ||
| Age range of interval: | 112.0 - 99.6 m.y. ago |
Stratigraphy
| Formation: | Lohan Cura | Member: | Cullín Grande | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: The Cullín Grande Member is the upper part of the Lohan Cura Formation | |||||
Lithology and environment
| Primary lithology: | fine,medium,quartzose sandstone | ||
| Includes fossils? | Y | ||
| Lithology description: "medium to fine grained, quartzitic sandstones" | |||
| Environment: | levee | Tectonic setting: | foreland basin |
| Geology comments: "The sedimentary sequence of the Lohan Cura Formation was developed in a retro-arc foreland stage that began in the Early Albian as the result of Gondwanan break-up" "Thick sequence of meandering fluvial deposits...level 4 consists of top bar and levee deposits" | |||
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Preservation of anatomical detail: | good |
| Associated major elements: | some |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
| Fragmentation: | frequent |
Collection methods and comments
| Collection methods: | field collection,selective quarrying,mechanical,sieve | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | J. F. Bonaparte | Collection dates: | 1997-2004 |
Metadata
| Database number: | 92235 | ||
| Authorizer: | R. Butler | Enterer: | R. Butler |
| Modifier: | R. Butler | Research group: | vertebrate |
| Created: | 2009-11-04 02:52:46 | Last modified: | 2009-11-04 04:52:46 |
| Access level: | the public | Released: | 2009-11-04 02:52:46 |
Reference information
Primary reference:
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