Arroyo Malo, Agassiceras zone (lower 120 m) (Jurassic of Argentina)

Where: Mendoza, Argentina (34.8° S, 69.9° W: paleocoordinates 37.0° S, 29.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Early/Lower Sinemurian (196.5 - 189.6 Ma)

• Agassiceras assemblage zone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone and lithified shale

• Includes sandstone, shale, limestone, mustone, and conglomerate.

Size class: macrofossils

Collection methods: Repository: Museo de La Plata (MLP)

Primary reference: A. C. Riccardi, S. E. Damborenea, M. O. Mancenido and S. C. Ballent. 1991. Hettangian and Sinemurian (Lower Jurassic) biostratigraphy of Argentina. Journal of South American Earth Sciences 4(3):159-170 [A. Miller/D. Schramm/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 42774: authorized by Arnold Miller, entered by Danielle Schramm on 05.08.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Arietitidae
Agassiceras sp., Agassiceras cf. scipionianum, "Coroniceras (Paracoroniceras) cf. charlesi" = Coroniceras charlesi
Agassiceras sp. Hyatt 1874 ammonite
Agassiceras cf. scipionianum d'Orbigny 1844 ammonite
"Coroniceras (Paracoroniceras) cf. charlesi" = Coroniceras charlesi Donovan 1955 ammonite