Cf. Rafinesquina-Zygospira Community (MacDaniels), Dillsboro Fm. (Ordovician of the United States)

Where: Indiana (39.4° N, 85.0° W: paleocoordinates 25.8° S, 60.3° W)

• coordinate based on nearby landmark

When: Dillsboro Formation, Late/Upper Ordovician (458.4 - 443.8 Ma)

• "U. Ord."

Environment/lithology: shallow subtidal; limestone and shale

• "intercalated thin sh and biomicrite ls (ecol. succession); shallow shelf (10-50 m); occasional storms. stable craton"

Size class: macrofossils

Primary reference: W. C. Parker. 1983. Fossil ecological successions in Paleozoic level bottom brachiopod-bryozoan communities. 1-217 [M. Uhen/J. Ju]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 398: authorized by Jack Sepkoski, entered by Mike Sommers on 03.12.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Parker, 1981. Parker thesis"
Show authors, comments, and common names
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
pelmatozoans
Gastropoda
 Euomphalina - Platyceratidae
Cyclonema sp.
Cyclonema sp. Hall 1852 snail
Bivalvia
 Myalinida - Ambonychiidae
Ambonychia sp.
Ambonychia sp. Hall 1847 clam
 Ostreida - Pterineidae
Pterinea sp.
Pterinea sp. Goldfuss 1832 oyster
Lophophorata
 Tentaculitida - Tentaculitidae
Tentaculites sp.
Tentaculites sp. von Schlotheim 1820
Strophomenata
 Strophomenida - Strophomenidae
Strophomena sp.
Strophomena sp. Rafinesque and De Blainville 1824
Sepkoski put Stroph. and Rafinesquina on same line, I split abundance% 50-50
 Strophomenida - Rafinesquinidae
Rafinesquina sp.
Rafinesquina sp. Hall and Clarke 1892
Sepkoski put Stroph. and Rafinesquina on same line, I split abundance% 50-50
Rhynchonellata
 Orthida - Platystrophiidae
Platystrophia sp.
 Orthida - Plectorthidae
Hebertella sp.
Hebertella sp. Hall and Clarke 1892
 Orthida - Dalmanellidae
Onniella sp.
Onniella sp. Bancroft 1928
 Atrypida - Anazygidae
Zygospira sp.
Zygospira sp. Hall 1862
 Rhynchonellida - Rhynchotrematidae
Lepidocyclus sp.
Lepidocyclus sp. Wang 1949
originally entered as "Lepidocyclas sp."
Stenolaemata
 Trepostomata -
Trepostomata indet.
Trepostomata indet. Ulrich 1882
encrusting trepostome
 Trepostomata - Halloporidae
Hallopora sp.
Hallopora sp. Bassler 1911
Trilobita
 Phacopida - Calymenidae
Flexicalymene sp.
Flexicalymene sp. Shirley 1936 trilobite