Where: Coahuila, Mexico (26.4° N, 102.9° W: paleocoordinates 1.7° S, 34.6° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Las Delicias Formation, Capitanian (264.3 - 259.5 Ma)
• Brachiopods found suggest a Wordian–Capitanian age for the stratigraphic section studied herein, just as Wardlaw et al. (1979) reported for La Difunta unit. However, the presence of 15 common species with a Capitanian age along with the record of ammonoid Timorites from the upper part of Delaware Mountains and Mexico (Las Delicias Beds) (Miller, 1944; Wardlaw et al., 1979; Leonova, 2002) confirms that rocks of the Las Manuelas I section get a late-middle Permian age (Table 1). The stratigraphic location of the studied section allowed delimiting the age of the upper levels of La Difunta unit (Wardlaw et al., 1979) to the Capitanian.
• bed-level stratigraphic resolution
Environment/lithology: lithified limestone
Size class: macrofossils
Collection methods: Repository: Museo de Paleontología, Facultad de Ciencias, Universidad Nacional Autónoma de México
Primary reference: M. A. Torres-Martínez, D. P. Heredia-Jiménez, S. A. Quiroz-Barroso, P. Navas-Parejo, F. Sour-Tovar and S. A. Quiroz-Barragán. 2019. A Permian (late Guadalupian) brachiopod fauna from northeast Mexico and their paleobiogeographic affinities. Journal of South American Earth Sciences 92:41-55 [M. Clapham/M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 200252: authorized by Matthew Clapham, entered by Matthew Clapham on 24.03.2019
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Thedusia aff. ventricosa Cooper and Grant 1976
Hustedia bipartita Girty 1908 | |
Dielasma "sp. 1" King 1856 | |
Rhynchopora guadalupensis Cooper and Grant 1976 | |
Strophomenata | |
Marginifera minor King 1931 | |
Liosotella subquadrata Cloud 1944 |