Liberty Hall "facies," Liberty Hall Fm. (Ordovician of the United States)

Where: Virginia (38.5° N, 78.6° W: paleocoordinates 29.9° S, 58.6° W)

• coordinate based on political unit

When: Liberty Hall Formation, Caradoc (458.4 - 449.5 Ma)

• "M. Ord."

Environment/lithology: slope; black limestone and shale

• "black ls and black sh. slope and basin facies (deeper than Lantz Mills facies) BA6. geosynclinal; foreland to E."

Size class: macrofossils

Primary reference: J. F. Read. 1980. Carbonate ramp-to-basin transition and foreland basin evolution, Middle Ordovician Virginia Appalachians. AAPG Bulletin 64:1575-1612 [M. Uhen/J. Ju/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 327: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Cooper and Cooper, 1946. GSA Bull. 57:35-113. Read, 1980. AAPG Bull. 64:1575-1612"
Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Dicranograptidae
Nemagraptus sp.
Nemagraptus sp. graptolite
 Graptoloidea - Climacograptidae
Climacograptus sp.
Climacograptus sp. Hall 1865 climacograptid
 Graptoloidea - Diplograptidae
Diplograptus sp.
Diplograptus sp. graptolite
Lingulata
 Lingulida - Lingulidae
Lingula sp.
Lingula sp. Bruguiére 1797
 Lingulida - Obolidae
Leptobolus sp.
Leptobolus sp. Hall 1871
 Acrotretida - Acrotretidae
Conotreta sp.
Conotreta sp. Walcott 1889
Strophomenata
 Orthotetida - Triplesiidae
Oxoplecia sp.
Oxoplecia sp. Wilson 1913
 Strophomenida - Sowerbyellidae
Ptychoglyptus sp., Sowerbyella sp.
Ptychoglyptus sp. Willard 1928
Sowerbyella sp. Jones 1928
 Strophomenida - Leptellinidae
Leptellina sp.
Leptellina sp. Ulrich and Cooper 1936
Rhynchonellata
 Atrypida - Cyclospiridae
Cyclospira sp.
Cyclospira sp. Hall and Clarke 1893
 Orthida - Dalmanellidae
Resserella sp.
Resserella sp. Bancroft 1928
 Orthida - Plaesiomyidae
Dinorthis sp., Multicostella sp.
Dinorthis sp. Hall and Clarke 1892
Artiopoda
 Agnostida - Metagnostidae
Arthrorhachis sp.
Arthrorhachis sp. Hawle and Corda 1847
Trilobita
 Corynexochida - Styginidae
Bronteopsis sp.
Bronteopsis sp. Nicholson and Etheridge 1879 trilobite
 Phacopida - Pterygometopidae
Calliops sp.
Calliops sp. Delo 1935 trilobite
 Trinucleida - Raphiophoridae
Ampyxina sp., Ampyx sp., Lonchodomas sp.
Ampyxina sp. Ullrich 1922 trilobite
Ampyx sp. Dalman 1827 trilobite
Lonchodomas sp. Angelin 1854 trilobite
 Trinucleida - Dionididae
Dionide sp.
Dionide sp. Barrande 1847 trilobite
 Trinucleida - Trinucleidae
Cryptolithus sp.
Cryptolithus sp. Green 1832 trilobite
 Asaphida - Remopleurididae
Robergia sp., Remopleurides sp.
Robergia sp. Wiman 1905 trilobite
Remopleurides sp. Portlock 1843 trilobite
Stromatoporoidea
 Labechiida - Aulaceratidae
Cryptophragmus sp.
Cryptophragmus sp. Raymond 1914 stromatoporoid sponge