Split Tank, locality 899 (Permian of the United States)

Where: Texas (30.4° N, 103.1° W: paleocoordinates 1.1° N, 33.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Hess Formation, Kungurian (279.3 - 272.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified framestone

• Reef core facies - calcareous sponges are surrounded by medium-gray algae and light travertine in micritic limestone

Size class: macrofossils

Collected by R. Bain in 1965, 1966

Collection methods: peel or thin section,

Primary reference: R. J. Bain. 1967. Paleoecology of some Leonardian patch reefs in the Glass Mountains, Texas. Brigham Young University Geology Studies 14:195-236 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 122214: authorized by Matthew Clapham, entered by Matthew Clapham on 19.12.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Demospongiae
 Agelasida - Sebargasiidae
Amblysiphonella sp. Steinmann 1882 demosponge
 Agelasida - Thaumastocoeliidae
Girtyocoelia sp. Cossman 1909 demosponge
 Agelasida - Guadalupiidae
Cystothalamia sp. Girty 1908 demosponge