ammonites
Section 2, bed 5, Alacran Mountain, Hueco Mountains (Permian of the United States)

Where: Texas (31.9° N, 106.0° W: paleocoordinates 2.7° N, 35.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Alacran Mountain Formation, Artinskian (290.1 - 279.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, gray limestone

• Algal limestone, light olive gray, bedding not discernible; 10 feet of light olive gray to olive gray, thin-bedded limestone in middle of unit

Size class: microfossils

Reposited in the YPM

Collection methods: peel or thin section

Primary reference: T. E. Williams. 1963. Fusulinidae of the Hueco Group (Lower Permian), Hueco Mountains, Texas. Peabody Museum of Natural History, Yale University Bulletin 18:1-122 [M. Clapham/L. Edwards/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 131725: authorized by Matthew Clapham, entered by Matthew Clapham on 28.07.2012

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)