Fall Creek 3 (04FC3Dc) (Ordovician of the United States)

Where: Tennessee (36.0° N, 86.4° W: paleocoordinates 27.2° S, 65.2° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Lebanon Formation, Mohawkian (457.3 - 451.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; shelly/skeletal packstone and shelly/skeletal, calcareous siltstone

• interbedded packstone, calcareous siltstone, and calcareous shale

Size class: macrofossils

Primary reference: K. M. Layou. 2009. Ecological restructuring after extinction: the Late Ordovician (Mohawkian) of the eastern United States. Palaios 24:118-128 [K. Layou/K. Layou]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 86123: authorized by Karen Layou, entered by Karen Layou on 25.01.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Strophomenida - Strophomenidae
Strophomena sp. Rafinesque and De Blainville 1824
Rhynchonellata
 Atrypida - Anazygidae
Zygospira sp. Hall 1862
 Orthida - Hesperorthidae
Hesperorthis sp. Schuchert and Cooper 1931
 Orthida - Glyptorthidae
Glyptorthis sp. Foerste 1914
 Orthida - Plectorthidae
Doleroides sp. Cooper 1930
Stenolaemata
 Trepostomida -
Trepostomida "sp. D" Ulrich 1882
thin ramose bryozoan
 Cryptostomata - Escharoporidae
Escharopora sp. Hall 1847
 Cryptostomata - Rhinidictyidae
Rhinidictya sp. Ulrich 1882
  - Phylloporinidae
Chasmatopora sp. Eichwald 1860
Gastropoda
 Murchisoniina - Lophospiridae
Lophospira sp. Whitfield 1886 snail
 Euomphalina - Macluritidae
Maclurites sp. Le Sueur 1818 snail
Ostracoda
 Myodocopa -
Leperditicopida indet. Scott 1961 ostracod
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
 Asaphida - Asaphidae
Isotelus sp. Dekay 1824 trilobite
Crinoidea
  -
Crinoidea "group A" Miller 1821 Sea lily
Crinoidea "group C" Miller 1821 Sea lily
Crinoidea "group D" Miller 1821 Sea lily
Crinoidea "group F" Miller 1821 Sea lily