King 12, Bed 17, La Difunta section, Las Delicias (Permian of Mexico)

Where: Coahuila, Mexico (26.4° N, 102.9° W: paleocoordinates 2.0° S, 34.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Palo Quemado Formation, Wordian (266.9 - 264.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, blue limestone

• Massive and nodular blue-gray limestone, with abundant Chonetes deliciaensis (from section description, p. 13). Prominent limestone layers separated from one another by shale, graywacke, and lava. Beds 11 to 17 and lower part of bed 10. Most imporant member is bed 15, which caps Cerro Caballo. Massive limestones have adundant sponges, crinoidal fragments; shales and thin limestones contain cephalopods. (From a general stratigraphy table, Fig. 3, p. 19).

Size class: macrofossils

Reposited in the YPM

Primary reference: R. E. King. 1944. Geology, Part I of Geology and paleontology of the Permian area northwest of Las Delicias, southwestern Coahulia, Mexico. Geological Society of America Special Paper 52:3-33 [T. Olszewski/L. Fall/L. Fall]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 62921: authorized by Tom Olszewski, entered by Leigh Fall on 01.08.2006, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Terebratulida - Dielasmatidae
Dielasma sp.
Dielasma sp. King 1856
 Spiriferinida - Reticulariinidae
"Spiriferina laxa" = Reticulariina laxa
"Spiriferina laxa" = Reticulariina laxa Girty 1909
 Rhynchonellida - Rhynchoporidae
Rhynchopora taylori
 Rhynchonellida - Petasmariidae
? Pugnoides sp.
? Pugnoides sp. Weller 1910
Strophomenata
 Productida - Linoproductidae
Cancrinella rugosa n. sp.
Cancrinella rugosa n. sp. Cloud 1944
 Productida - Productidae
"Buxtonia cf. peruviana" = Kochiproductus peruvianus
"Buxtonia cf. peruviana" = Kochiproductus peruvianus d'Orbigny 1842
 Orthotetida - Meekellidae
Meekella enigma n. sp.
Meekella enigma n. sp. Cloud 1944
 Strophomenida - Chonetidae
"Chonetes" deliciasensis
Lingulata
 Lingulida - Discinidae
Orbiculoidea cf. utahensis
Cephalopoda
 Nautilida - Grypoceratidae
Domatoceras sp.
Domatoceras sp. Hyatt 1891
 Prolecanitida - Medlicottiidae
"Medlicottia burckhardti" = Eumedlicottia burckhardti, Medlicottia sp.
"Medlicottia burckhardti" = Eumedlicottia burckhardti Böse 1919 ammonite
Medlicottia sp. Waagen 1880 ammonite
 Goniatitida - Cyclolobidae
"Waagenoceras guadalupense" = Mexicoceras guadalupense, Waagenoceras dieneri
"Waagenoceras guadalupense" = Mexicoceras guadalupense Girty 1909 ammonite
Waagenoceras guadalupense smithi also included in collection
Waagenoceras dieneri Böse 1919 ammonite
 Goniatitida - Adrianitidae
Pseudagathiceras difuntense
Pseudagathiceras difuntense Miller 1944 ammonite
 Goniatitida - Paragastrioceratidae
"Pseudogastrioceras roadense" = Roadoceras roadense
"Pseudogastrioceras roadense" = Roadoceras roadense Böse 1919 ammonite
 Pseudorthocerida - Spyroceratidae
Bitaunioceras coahuilense
Foraminifera
 Fusulinoidea - Schwagerinidae
Parafusulina deliciasensis
 Fusulinoidea - Staffellidae
Staffella subacuta