Ar Rhyashia (Oligocene of Yemen)

Where: Yemen (14.3° N, 44.8° E: paleocoordinates 9.2° N, 38.8° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Yemen Volcanic Group, Oligocene (33.9 - 23.0 Ma)

• "a single bedding plane"

• bed-level stratigraphic resolution

Environment/lithology: lacustrine - small; metamorphosed, calcareous shale

• one of three "freshwater interbeds" within "flood volcanic rocks" in this area that represent "small, shallow lakes"
• "limey, partly metamorphosed shale"

Size class: macrofossils

Preservation: mold/impression, adpression

Collected in 1991; reposited in the AMNH

Collection methods: surface (float), peel or thin section,

• skeletons "were discovered exposed on the outcrop"

•"silastic rubber casts [and] peels of the impressions" were taken

Primary reference: A. C. Henrici and A. M. Báez. 2001. First occurrence of Xenopus (Anura: Pipidae) on the Arabian Peninsula: a new species from the Upper Oligocene of Yemen. Journal of Paleontology 75(4):870-882 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 75093: authorized by John Alroy, entered by John Alroy on 22.09.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Amphibia
 Salientia - Pipidae
Xenopus arabiensis n. sp. Henrici and Báez 2001 clawed frog
Actinopteri
 Neopterygii -
Neopterygii indet.
"unidentified neopterygian fish"