Dunlap Canyon, Pilot Mountains (locality DC) (Triassic of the United States)

Where: Nevada (38.4° N, 118.0° W: paleocoordinates 15.1° N, 54.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Luning Formation, Lacian (221.5 - 215.6 Ma)

• Section in strata dipping 25-35° SE. Section measured from west to east along road in east limb of overturned anticline. Section cut by thrust fault.

Environment/lithology: reef, buildup or bioherm; lithified framestone and lithified wackestone

Size classes: macrofossils, mesofossils

Collected by G. Stanley; reposited in the UMMP

Primary reference: G. D. Stanley, Jr. 1979. Paleoecology, structure, and distribution of Triassic coral buildups in western North America. The University of Kansas Paleontological Contributions 65:1-68 [A. Miller/S. Kolbe]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 100412: authorized by Arnold Miller, entered by Sarah Kolbe on 09.12.2010, edited by Matthew Clapham and Wolfgang Kiessling

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Foraminifera
 Foraminifera -
Nodosariata
 Nodosariida - Nodosariidae
cf. Nodosaria sp. Lamarck 1812
Foraminifera
  - Spiroplectamminidae
Spiroplectammina sp. Cushman 1927
  -
"Marginulina sp." = Cristellaria (Marginulina)
"Marginulina sp." = Cristellaria (Marginulina) d'Orbigny 1826
Hydrozoa
 Spongiomorphida - Spongiomorphidae
Anthozoa
 Scleractinia - Tropiastraeidae
"Actinastraea martini" = Guembelastraea martini
"Actinastraea martini" = Guembelastraea martini Smith 1927 stony coral
 Scleractinia - Pamiroseriidae
"Actinastraea shastensis" = Minasteria shastensis Smith 1927 stony coral
"Elysastraea parva" = Ceriostella parva Smith 1927 stony coral
Ceriostella martini2 Smith 1927 stony coral
Ceriostella martini1 Smith 1927 stony coral
Areaseris nevadaensis2 Roniewicz and Stanley 2013 stony coral
 Scleractinia - Montlivaltiidae
Elysastraea profunda Reuss 1854 stony coral
 Scleractinia - Alpinophylliidae
"Margarastraea cf. norica" = Stuoresimorpha norica
"Margarastraea cf. norica" = Stuoresimorpha norica Frech 1890 stony coral
 Scleractinia - Microsolenidae
"Spongiomorpha dendriformis" = Eocomoseris ramosa
"Spongiomorpha dendriformis" = Eocomoseris ramosa Frech 1890 stony coral
 Scleractinia - Astraeomorphidae
Astraeomorpha confusa Winckler 1861 stony coral
Astraeomorpha confusa and Astraeomorpha confusa var. minor
 Scleractinia - Thamnasteriidae
Thamnasteria smithi Squires 1956 stony coral
 Scleractinia - Stylophyllidae
Pinacophyllum cf. parallelum Frech 1890 stony coral
 Scleractinia - Coryphylliidae
Nevadoseris puncata2 stony coral
 Scleractinia - Reimaniphylliidae
""Montlivaltia" marmorea" = Cuifia marmorea, ""Montlivaltia" norica" = Distichophyllia norica, ""Thecosmilia" fenestrata" = Retiophyllia fenestrata, ""Thecosmilia" norica" = Retiophyllia norica, ""Thecosmilia" delicatula" = Retiophyllia delicatula, "Thamnasteria norica" = Oedalmia norica
""Montlivaltia" marmorea" = Cuifia marmorea Frech 1890 stony coral
""Montlivaltia" norica" = Distichophyllia norica Frech 1890 stony coral
""Thecosmilia" fenestrata" = Retiophyllia fenestrata Reuss 1854 stony coral
""Thecosmilia" norica" = Retiophyllia norica Frech 1890 stony coral
""Thecosmilia" delicatula" = Retiophyllia delicatula Frech 1890 stony coral
"Thamnasteria norica" = Oedalmia norica Frech 1890 stony coral
Demospongiae
 Verticillitida - Verticillitidae
"Ascosymplegma expansum" = Cinnabaria expansa, "Polytholosia astoma" = Fanthalamia astoma, "Polytholosia cylindrica" = Nevadathalamia cylindrica
"Ascosymplegma expansum" = Cinnabaria expansa Seilacher 1962 demosponge
"Polytholosia astoma" = Fanthalamia astoma Seilacher 1962 demosponge
"Polytholosia cylindrica" = Nevadathalamia cylindrica Seilacher 1962 demosponge
subsp. cylindrica and dialata
Echinoidea
  -
Echinoidea indet. Leske 1778 sea urchin
 Cidaridae - Cidaridae
"Cidaridae indet." = Cidaroida
"Cidaridae indet." = Cidaroida Claus 1880 pencil urchin
Crinoidea
 Isocrinida - Isocrinidae
Isocrinus sp. von Meyer 1836 Sea lily
 Encrinida - Encrinidae
Encrinus sp. Lamarck 1801 Sea lily
Reptilia
 Ichthyosauria - Ichthyosauridae
Ichthyosaurus sp. Koenig 1818 ichthyosaur
Cephalopoda
 Nautilida - Liroceratidae
Paranautilus sp. Mojsisovics 1902 nautiloid
 Nautilida - Tainoceratidae
Pleuronautilus sp. von Mojsisovics 1882 nautiloid
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
Bivalvia
 Nuculida -
Nuculoidea indet. Gray 1824 clam
 Pectinida -
Pectinoidea indet. Rafinesque 1815 scallop
 Ostreida - Ostreidae
Ostrea sp., "Ostrea cf. montiscaprilis" = Umbrostrea montiscaprilis
Ostrea sp. Linnaeus 1758 oyster
"Ostrea cf. montiscaprilis" = Umbrostrea montiscaprilis Klipstein 1843 oyster
 Ostreida - Halobiidae
Halobia sp. Bronn 1830 oyster
 Ostreida - Posidoniidae
Posidonia sp. Bronn 1828 oyster
 Ostreida - Pinnidae
Trichites sp. Lhuyd 1760 oyster
 Ostreida - Cassianellidae
Cassianella sp. Beyrich 1862 oyster
 Mytilida -
Mytiloidea indet. Rafinesque 1815 clam
 Carditida - Cardiniidae
Cardinia sp. Agassiz 1841 clam
Rhynchonellata
 Terebratulida - Angustothyrididae
Rhaetina gregaria3 Suess 1854
 Terebratulida - Plectoconchidae
Plectoconcha newbyi n. sp.3 Sandy and Stanley 1993
 Terebratulida - Zeilleriidae
Zeilleria cf. elliptica3 Zugmayer 1882
 Spiriferinida - Spondylospiridae
Zugmayerella uncinata3 Schafhautl 1851
Deuteropoda
  -
Ostracoda indet. Latreille 1802 ostracod