Chacaico Sur-Charahuilla (icthyosaur locality) (Jurassic of Argentina)

Where: Neuquen, Argentina (39.3° S, 70.3° W: paleocoordinates 37.0° S, 31.1° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Early/Lower Bajocian (171.6 - 168.4 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

• "dark shales and marls" (Gasparini 1997)

Size class: macrofossils

Primary reference: Z. Gasparini and M. Fernandez. 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/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140299: authorized by Philip Mannion, entered by Jonathan Tennant on 07.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ichthyosauria -
Stenopterygius grandis n. sp. Cabrera 1939 ichthyosaur
MLP 39-VII-2–2 - type (rostral fragment)
 Ichthyosauria - Ophthalmosauridae
Mollesaurus perihallus n. gen. n. sp.
Mollesaurus perihallus n. gen. n. sp. ichthyosaur
MOZ 2282 - holotype (a skull with articulated vertebral column and ribs)
 Ichthyosauria -
Chacaicosaurus cayi n. gen. n. sp.
Chacaicosaurus cayi n. gen. n. sp. Fernandez 1994 ichthyosaur
MOZ 58103 PV - holotype (complete skull with associated forefine, proximal fragment of humerus and femur, atlas, axis, four cervical vertebrae, isolated phalanges)