Chacaico Sur-Charahuilla (icthyosaur locality): Early Bajocian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
|
||||||||||
|
Chacaicosaurus cayi n. gen., n. sp.
Fernandez 1994
|
||||||||||
| MOZ 58103 PV - holotype (complete skull with associated forefine, proximal fragment of humerus and femur, atlas, axis, four cervical vertebrae, isolated phalanges) | ||||||||||
|
Reptilia
- Ophthalmosauridae
|
||||||||||
|
Mollesaurus perihallus n. gen., n. sp.
|
||||||||||
| MOZ 2282 - holotype (a skull with articulated vertebral column and ribs) | ||||||||||
|
Reptilia
|
||||||||||
|
Stenopterygius grandis n. sp.
Cabrera 1939
|
||||||||||
| MLP 39-VII-2–2 - type (rostral fragment) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Neuquen |
| Coordinates: | 39.3° South, 70.3° West (view map) | ||
| Paleocoordinates: | 37.0° South, 31.1° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | small collection |
Time
| Period: | Jurassic | Epoch: | Middle Jurassic |
| Stage: | Bajocian | 10 m.y. bin: | Jurassic 4 |
| Key time interval: | Early Bajocian | ||
| Age range of interval: | 170.9 - 168.6 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | not reported |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: "dark shales and marls" (Gasparini 1997) | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Abundance in sediment: | rare |
| Fragmentation: | frequent |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 140299 | ||
| Authorizer: | P. Mannion | Enterer: | J. Tennant |
| Modifier: | P. Mannion | Research group: | vertebrate |
| Created: | 2013-03-07 05:33:56 | Last modified: | 2013-05-29 08:04:16 |
| Access level: | the public | Released: | 2013-03-07 05:33:56 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 45364. | Z. Gasparini and M. Fernández. 2005. Jurassic marine reptiles of the Neuquen Basin: records, faunas, and their palaeobiogeographic significance. In G. D. Viega, L. A. Spalletti, J. A. Howell, E. Schwarz (eds.), The Neuquen Basin, Argentina: A Case Study in Sequence Stratigraphy and Basin Dynamics; Geological Society, London, Special Publications 252:279-294 [P. Mannion/J. Tennant/F. Aspromonte] |
Secondary references:
| 46102 | M. Fernandez. 1994. A new long-snouted ichthyosaur from the Early Bajocian of Neuquen Basin (Argentina). Ameghiniana 31(3):291-297 [P. Mannion/J. Tennant] | |
| 46967 | M. S. Fernández and M. Talevi. 2013. Ophthalmosaurian (Ichthyosauria) records from the Aalenian–Bajocian of Patagonia (Argentina): an overview. Geological Magazine [P. Mannion/P. Mannion] | |
| 46676 | P. M. Sander. 2000. Ichthyosauria: their diversity, distribution and phylogeny. Palaeontologische Zeitschrift 74(1/2):1-35 [P. Mannion/J. Tennant] |