Salitral La Amarga (Cretaceous of Argentina)

Where: La Pampa, Argentina (36.6° S, 68.2° W: paleocoordinates 38.9° S, 55.9° W)

• outcrop-level geographic resolution

When: CC26 nannofossil zone, Jagüel Formation (Malargüe Group), Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• from "a bed of mudstones"

• bed-level stratigraphic resolution

Environment/lithology: marine; wackestone

• formation is "marine pelites"

lithology said to be "mudstones" in text but illustrated as wackestone in section

• wackestone

Size class: macrofossils

Primary reference: R. M. Feldmann, S. Casadío, L. Chirino-Galvez and M. Aguirre-Urreta. 1995. Fossil decapod crustaceans from the Jaguel and Roca Formations (Maastrichtian-Danian) of the Neuquen Basin, Argentina. Journal of Paleontology 69(5 II):1-22 [J. Alroy/J. Alroy/F. Aspromonte]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 5167: authorized by John Alroy, entered by John Alroy on 01.09.1999, edited by Franco Aspromonte

Creative Commons license: CC BY (attribution)

Taxonomic list

• nannoplankton mentioned but not described
Show authors, comments, and common names
Cephalopoda
 Ammonitida - Baculitidae
Baculites sp.
Baculites sp. Lamarck 1799 ammonite
Bivalvia
 Pectinida - Pectinoidae
Camptonectes sp.
Camptonectes sp. Meek 1864 scallop
 Ostreida - Ostreidae
Rastellum clarae
 Hiatellida - Hiatellidae
Panopea inferior
 Trigoniida - Trigoniidae
"Pterotrigonia (Rinetrigonia) windhauseniana" = Trigonia windhauseniana1, Pacitrigonia pampeana, Pacitrigonia sobrali1, Austrotrigonia sobrali, Austrotrigonia pampeana1
"Pterotrigonia (Rinetrigonia) windhauseniana" = Trigonia windhauseniana1 Wilckens 1921 clam
GHUNLPam 617-623
Pacitrigonia sobrali1 Leanza and Casadío 1991 clam
GHUNLPam 624
Austrotrigonia pampeana1 Leanza and Casadío 1991 clam
GHUNLPam 625, 627-628
Malacostraca
 Decapoda - Callianassidae
Callianassa burckhardi
Callianassa burckhardi decapod
definitely not the same as the following
 Decapoda - Tumidocarcinidae
Lobonotus sp.
Lobonotus sp. Milne-Edwards 1863 crab
mentioned in list but not described
Echinoidea
 Spatangoida - Micrasteridae
Diplodetus nutrix2
Diplodetus nutrix2 Boule 1899 heart urchin
GHUNLPam22015
 Spatangoida - Hemiasteridae
"Hemiaster hawkinsi" = Hemiaster stella2
"Hemiaster hawkinsi" = Hemiaster stella2 Morton 1830 heart urchin
GHUNLPam22022
1Leanza and Casadío 1991; 2Parma and Casadío 2005