Estancia Las Violetas (Paleocene of Argentina)

Also known as Necrosuchus ionensis type

Where: Chubut, Argentina (45.0° S, 67.0° W: paleocoordinates 47.6° S, 56.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Salamanca Formation, Danian (66.0 - 61.6 Ma)

• Peligran South American Land Mammal Age (SALMA); summit of the Salamanza Formation

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; fine-grained, coarse sandstone

• fine and coarse sand with gravel

Size class: macrofossils

Collected by First Scarritt Expedition in 1931; reposited in the AMNH

Primary reference: G. G. Simpson. 1937. An ancient eusuchian crocodile from Patagonia. American Museum Novitates 965:1-20 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 123270: authorized by Philip Mannion, entered by Philip Mannion on 17.01.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Crocodylia - Alligatoridae
Necrosuchus ionensis n. gen. n. sp.
Necrosuchus ionensis n. gen. n. sp. Simpson 1937 crocodilian
AMNH 3219 - holotype (right dentary with associated cranial fragments and partial postcranial skeleton)
unclassified
  -
Plantae indet.
Plantae indet. Haeckel 1866
Fossilized wood