Lantz Mills (Ordovician of the United States)

Also known as Lantz Mills "facies," Lantz Mills Fm., Diplograptus multidens zone

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

• coordinate based on political unit

When: Diplograptus multidens zone, Lantz Mills Formation, Caradoc (458.4 - 449.5 Ma)

• "M. Ord."

Environment/lithology: offshore ramp; argillaceous wackestone

• "nodular argillaceous ls. (mudstone and wackestone). deep ramp facies below shelf edge (BA5) ocean facing? slope"

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 326: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• "B.N. Cooper and G.A. Cooper 1946. Lower M. Ord. strat. of the Shenandoah Valley, VA. GSA Bull. 57:35-113. J.F. Read 1980. Carbonate ramp-to-basin transition and foreland basin evolution, M. Ord. Virginia Appalachians. AAPG Bull. 64:1575-1612"
Show authors, comments, and common names
Artiopoda
 Agnostida - Metagnostidae
Arthrorhachis sp.
Arthrorhachis sp. Hawle and Corda 1847
Trilobita
 Phacopida - Pterygometopidae
Calliops sp.
Calliops sp. Delo 1935 trilobite
 Phacopida - Cheiruridae
Ceraurus sp., Sphaerexochus sp., Sphaerocoryphe sp.
Ceraurus sp. Green 1832 trilobite
Sphaerexochus sp. Beyrich 1845 trilobite
Sphaerocoryphe sp. Angelin 1854 trilobite
 Corynexochida - Illaenidae
Bumastus sp.
Bumastus sp. Murchison 1839 trilobite
 Corynexochida - Styginidae
Bronteopsis sp.
Bronteopsis sp. Nicholson and Etheridge 1879 trilobite
 Asaphida - Asaphidae
"Homotelus sp." = Isotelus
"Homotelus sp." = Isotelus Dekay 1824 trilobite
 Asaphida - Remopleurididae
Remopleurides sp., Robergia sp.
Remopleurides sp. Portlock 1843 trilobite
Robergia sp. Wiman 1905 trilobite
 Trinucleida - Trinucleidae
Cryptolithus sp., Tretaspis sp.
Cryptolithus sp. Green 1832 trilobite
Tretaspis sp. M'Coy 1849 trilobite
 Trinucleida - Raphiophoridae
Ampyx sp., Ampyxina sp., Lonchodomas sp.
Ampyx sp. Dalman 1827 trilobite
Ampyxina sp. Ullrich 1922 trilobite
Lonchodomas sp. Angelin 1854 trilobite
 Trinucleida - Dionididae
Dionide sp.
Dionide sp. Barrande 1847 trilobite
 Harpetida - Harpetidae
Eoharpes sp.
Eoharpes sp. Raymond 1905 trilobite
Tergomya
 Cyrtonellida - Cyrtonellidae
Cyrtonella sp.
Cyrtonella sp. Hall 1879
Stenolaemata
 Cryptostomata - Arthrostylidae
Glauconome sp.
Glauconome sp. Goldfuss 1826
 Cryptostomata - Rhinidictyidae
Rhinidictya sp.
Rhinidictya sp. Ulrich 1882
  - Phylloporinidae
Chasmatopora sp.
Chasmatopora sp. Eichwald 1860
 Trepostomida - Monticuliporidae
Mesotrypa sp.
Mesotrypa sp. Ulrich 1893
Strophomenata
 Strophomenida - Furcitellidae
Oepikina sp.
Oepikina sp. Salmon 1942
originally entered as "Oepikinia sp."
 Strophomenida - Christianiidae
Christiania sp.
Christiania sp. Hall and Clarke 1892
 Strophomenida - Sowerbyellidae
Sowerbyella sp., Ptychoglyptus sp.
Sowerbyella sp. Jones 1928
Ptychoglyptus sp. Willard 1928
 Strophomenida - Leptellinidae
Leptellina sp.
Leptellina sp. Ulrich and Cooper 1936
 Orthotetida - Triplesiidae
Oxoplecia sp.
Oxoplecia sp. Wilson 1913
Rhynchonellata
 Orthida - Dalmanellidae
Resserella sp.
Resserella sp. Bancroft 1928
 Orthida - Plaesiomyidae
Multicostella sp., Dinorthis sp.
Dinorthis sp. Hall and Clarke 1892
 Orthida - Plectorthidae
Corineorthis sp.
 Atrypida - Cyclospiridae
Cyclospira sp.
Cyclospira sp. Hall and Clarke 1893
 Atrypida - Protozygidae
Protozyga sp.
Protozyga sp. Hall and Clarke 1893
Lingulata
 Acrotretida - Acrotretidae
Conotreta sp.
Conotreta sp. Walcott 1889
 Siphonotretida - Siphonotretidae
Schizambon sp.
Schizambon sp. Walcott 1884
 Lingulida - Obolidae
Leptobolus sp.
Leptobolus sp. Hall 1871
 Lingulida - Lingulidae
Lingula sp.
Lingula sp. Bruguiére 1797
 Lingulida - Discinidae
Orbiculoidea sp.
Orbiculoidea sp. d'Orbigny 1847
 Rhombifera - Echinosphaeritidae
Echinosphaerites sp.
Echinosphaerites sp. Wahlenberg 1818
Anthozoa
 Stauriida - Lambelasmatidae
Lambeophyllum sp.
Lambeophyllum sp. Okulitch 1938 horn coral
Scyphozoa
 Conulariida - Conulariidae
Conularia sp.
Conularia sp. jellyfish
Demospongiae
 Lithistida -
Lithistida indet.
Stromatoporoidea
 Labechiida - Aulaceratidae
Cryptophragmus sp.
Cryptophragmus sp. Raymond 1914 stromatoporoid sponge
Hexactinellida
  -
Hexactinellida indet.
Hexactinellida indet. Schmidt 1870 glass sponge