Where: Union County, Illinois (37.5° N, 89.4° W)
• Paleocoordinates: 33.3° S, 57.4° W (Wright 2013)
• outcrop-level geographic resolution
When: Icriodus latericrescens latericrescens conodont zone, St. Laurent Formation, Givetian (387.7 - 382.7 Ma)
• = Polygnathus hemiansatus conodont zone.
• group of beds-level stratigraphic resolution
Environment/lithology: limestone
Size class: macrofossils
Primary reference: G. H. Fraunfelter. 1973. Mollusca from the Lingle and St. Laurent Limestones (Middle Devonian) of southern Illinois and southeastern Missouri. Southern Illinois Studies 11:1-44 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 157345: authorized by Pete Wagner, entered by Pete Wagner on 13.06.2014
Creative Commons license: CC BY (attribution)
Taxonomic list
Hyolitha | |
Lophophorata | |
Tentaculites bellulus Hall 1876 | |
Gastropoda | |
"Bembexia cf. rotalia" = Denayella rotalia
"Bembexia cf. rotalia" = Denayella rotalia Hall 1862 snail | |
"Platyceras (Platyceras) fornicatum" = Spinyplatyceras fornicatum, "Platystoma (Platystoma) lineata" = Platyostoma lineata, Devononema typicum n. gen. n. sp.
"Platyceras (Platyceras) fornicatum" = Spinyplatyceras fornicatum Hall 1862 snail Platyceras (Platyceras) n. ssp. fornicatum plurispinum
"Platystoma (Platystoma) lineata" = Platyostoma lineata Conrad 1842 snail
Devononema typicum n. gen. n. sp. Fraunfelter 1973 snail | |
Bivalvia | |
Modiomorpha concentrica Conrad 1838 clam
? Goniophora "sp. 1" Phillips 1848 clam | |
Ptychopteria (Actinopteria) boydi, "Leiopteria laevis" = Leptodesma (Leiopteria)
Ptychopteria (Actinopteria) boydi Conrad 1842 oyster
"Leiopteria laevis" = Leptodesma (Leiopteria) oyster | |
Pseudaviculopecten princeps, "Aviculopecten fasciculatus" = Pseudaviculopecten fasciculatus
Pseudaviculopecten princeps scallop
"Aviculopecten fasciculatus" = Pseudaviculopecten fasciculatus Hall 1883 scallop |