Lough Shee Mudrocks (Ordovician of Ireland)

Where: Ireland (54.0° N, 9.0° W: paleocoordinates 24.8° S, 35.1° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Lough Shee Mudrocks Formation, Llanvirn (468.0 - 458.4 Ma)

• "upper Whiterock" (Sepkoski)

•Llanvirn and listed as D. "bifidus" / D. murchisoni zone (Novack-Gottshall)

• formation-level stratigraphic resolution

Environment/lithology: slope; lithified, green mudstone

• "green mudrocks. deepwater" (Sepkoski)

•"Text notes setting is transgressive mudstone facies (therefore outer shelf?), upper slope, and with basal conglomerates as alluvial; I'm interpreting the setting as upper slope with some debris flow deposits" (Novack-Gottshall)

• "green mudrock" (Novack-Gottshall)

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Primary reference: D. A. T. Harper, J. R. Graham, A.W. Owen and S.K. Donovan. 1988. An Ordovician fauna from Lough Shee, Partry Mountains, Co. Mayo, Ireland. Geological Journal 23:293-310 [P. Novack-Gottshall/P. Hearn/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 381: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 20.11.1998, edited by Mike Sommers

Creative Commons license: CC BY (attribution)

Taxonomic list

• "D.A.T. Harper, J.R. Graham, A.W. Owen, S.K. Donovan, 1988. An Ord. fauna from Lough Shee, Pantry Mtns., Co. Mayo, Ireland. Geol. Jour. 23:293-310"

•a duplicate record (collection 75964: authorizer P. Novack-Gottshall, enterer P. Hearn, created 2007-9-18) was entered and later dropped

Show authors, comments, and common names
unclassified
  -
? Porifera indet.
? Porifera indet. Grant 1836
sponge spicules? - originally entered as "? Porifera indet."
Rhynchonellata
 Pentamerida - Camerellidae
Idiostrophia cf. costata
Idiostrophia cf. costata Ulrich and Cooper 1938
Strophomenata
 Strophomenida - Aegiromenidae
Chonetoidea cf. triangularis
 Strophomenida - Syndielasmatidae
Syndielasma sp.
Syndielasma sp. Cooper 1956
Lingulata
 Lingulida - Obolidae
Lingulella sp.
Lingulella sp. Salter 1866
Polychaeta
  -
Plumulites sp.
Plumulites sp. Barrande 1872 scale worm
Bivalvia
 Arcida - Parallelodontidae
? Glyptarca sp.
? Glyptarca sp. Hicks 1873 clam
originally entered as "? Glyptarca sp."
 Nuculoida -
"Nuculoida indet." = Nuculida
"Nuculoida indet." = Nuculida Dall 1889 clam
indet. Nuculoids
 Nuculida - Cardiolariidae
"cf. Praeleda sp." = Deceptrix
"cf. Praeleda sp." = Deceptrix Fuchs 1919 clam
originally entered as "cf. Praeleda sp."
Cephalopoda
 Nautiloidea -
Nautiloidea indet.
Nautiloidea indet. Agassiz 1847 nautiloid
orthoconic nautiloid
 Dissidocerida - Geisonoceratidae
Ugooloceras oblatum
Ugooloceras oblatum Evans 1996
originally included in Nautiloidea indet.
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
indet. Gastropods
Trilobita
 Trinucleida - Raphiophoridae
Ampyx sp.
Ampyx sp. Dalman 1827 trilobite
 Asaphida - Asaphidae
Niobe sp.
Niobe sp. Angelin 1851 trilobite
 Asaphida - Nileidae
Nileus sp.
Nileus sp. Dalman 1827 trilobite
 Proetida - Telephinidae
Telephina cf. americana
Telephina cf. americana Billings 1865 trilobite
Artiopoda
 Agnostida - Metagnostidae
Galbagnostus sp.
Galbagnostus sp. Whittington 1965
originally entered as "Galbagnotus sp."