Anna Quarry, buildup complex (Carboniferous to of the United States)

Also known as Reef 3385

Where: Union County, Illinois (37.5° N, 89.2° W: paleocoordinates 14.1° S, 32.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ste. Genevieve Limestone Formation, Asbian to Asbian (339.4 - 326.4 Ma)

• Lower Chesterian, 4.5 to 6 m above the base of the formation

• group of beds-level stratigraphic resolution

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

• buildup complex: microbial mud mounds (2.5-3 m thick, 12 m wide), bryozoan boundstone (1.3 m thick, 7 m wide) and solenoporoid boundstone facies (1.5 m thick, 12-15 m long) on the windward margin

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: Z. Lasemi and R. D. Norby. 2003. Mississippian carbonate buildups and development of cool-water-like carbonate platforms in the Illinois Basin, Midcontinent U.S.A. in W. M. Ahr, P. M. Harris, W. A. Morgan, I. D. Somerville, eds., Permo-Carboniferous carbonate platforms and reefs. SEPM Special Publication 78:69-95 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 76724: authorized by Wolfgang Kiessling, entered by Uta Merkel on 30.11.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

 Corallinales - Corallinophycidae
Parachaetetes sp. Deninger 1906
Brachiopoda indet. Cuvier 1805
Gastropoda indet. Cuvier 1797 snail
 Sabellida - Serpulidae
Serpulidae indet. Rafinesque 1835
Bryozoa indet. Ehrenberg 1831
 Auloporida - Syringoporidae
Syringopora sp. Goldfuss 1826 tabulate coral
 Hadromerida - Suberitidae
Chaetetes sp. Fischer von Waldheim 1829 demosponge