Gateway to the Paleobiology Database
Gueran (Eocene of Western Sahara)

Also known as Guerran, Garouaz, Punta GŁera, Krebb Afedeira

Where: Western Sahara (25.1° N, 13.9° W: paleocoordinates 22.4° N, 17.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Aridal Formation, Bartonian (40.4 - 37.2 Ma)

• ~11 m above the base of the section

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; gray, white, argillaceous, silty sandstone

• neritic zone of a shallow shelf
• The sand- stone is white to light gray in color, clayey, silty, poorly-sorted, and very fine to coarse in grain size (F 1⁄4 Ģ4 to 1). The larger sand grains include clear quartz grains and opaque lithic fragments, all subrounded to rounded, and polished. Sandstone cement is calcareous. Marl and clay casts up to several centimeters in diam- eter are common, and fish coprolites on the order of 1.0e1.5 cm long and 4e5 mm in diameter are present.

Size class: macrofossils

Collected in 2014-2016

Primary reference: P. D. Gingerich and S. Zouhri. 2015. New fauna of archaeocete whales (Mammalia, Cetacea) from the Bartonian middle Eocene of southern Morocco. Journal of African Earth Sciences 111:273-286 [M. Uhen/M. Uhen/M. Uhen] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 175734: authorized by Mark Uhen, entered by Mark Uhen on 07.01.2016, edited by Philip Mannion and Patricia Holroyd

Creative Commons license: CC BY (attribution)