ammonites
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Medanitos, Catriel (MCPA) (Cretaceous of Argentina)

Where: Río Negro, Argentina (37.9° S, 67.8° W: paleocoordinates 40.8° S, 52.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Neuquén Group, Early/Lower Campanian (84.9 - 70.6 Ma)

• Río Colorado Subgroup (listed here as a formation)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; poorly lithified, gray sandstone

• "friable grey sandstones"

Size class: macrofossils

Collected by R. Abel in 1984

Primary reference: J. E. Powell. 2003. Revision of South American titanosaurid dinosaurs: palaeobiological, palaeobiogeographical and phylogenetic aspects. Records of the Queen Victoria Museum Launceston 111:1-173 [M. Carrano/M. Carrano/M. Carrano] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 51579: authorized by Matt Carrano, entered by Matt Carrano on 08.06.2005