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Bryn Gwyn (Miocene of Argentina)

Also known as Loma Blanca

Where: Chubut, Argentina (43.3° S, 65.4° W: paleocoordinates 43.9° S, 59.9° W)

• coordinate estimated from map

When: Gaiman Formation, Burdigalian (20.4 - 16.0 Ma)

• lower part of the Gaiman Formation (Marx & Fordyce, 2015)

• formation-level stratigraphic resolution

Environment/lithology: marine; tuffaceous, gray siltstone and tuffaceous, gray sandstone

• gray tuffaceous siltstones and sandstones

Size class: macrofossils

Preservation: replaced with phosphate

Collection methods: surface (in situ)

Primary reference: A. L. Cione and M. A. Cozzuol. 1990. Reidentification of Portheus patagonicus Ameghino, 1901, a supposed fish from the Middle Tertiary of Patagonia as a delphinoid cetacean. Journal of Paleontology 64(3):451-453 [M. Uhen/M. Uhen/J. Alroy] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 45886: authorized by Mark Uhen, entered by Mark Uhen on 11.12.2004, edited by Evangelos Vlachos

Creative Commons license: CC BY (attribution)