Section 1, SM-105, Stanley Mountain, California (Jurassic of the United States)

Where: California (35.1° N, 120.2° W: paleocoordinates 28.7° N, 61.2° W)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

When: Unit 1 Formation (Volcanopelagic Succession Group), Callovian (166.1 - 163.5 Ma)

• Zone 2 gamma - revision of chronostratigraphic assignment based on Baumgarnter et al. (1995) and Kiessling et al. (1999)

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified limestone

• Dark gray manganiferous limestone bed

Size class: microfossils

Preservation: original silica

Collection methods: bulk, hydrochloric,

• Radiolarians only

Primary reference: D. M. Hull. 1997. Upper Jurassic Tethyan and Southern Boreal radiolarians from western North America. Micropaleontology 43(S2):1-202 [W. Kiessling/W. Kiessling/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 50737: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 20.05.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Radiolaria
 Nassellaria - Williriedellidae
Williriedellum carpathicum Dumitrica 1970 radiolarian
Praewilliriedellum cephalospinosum Kozur 1984 radiolarian
Hiscocapsa robusta radiolarian
"Striatojaponicapsa conexa" = Striatojaponocapsa radiolarian
"Striatojaponicapsa plicarum" = Striatojaponocapsa radiolarian
s. str.
"? Striatojaponicapsa sp." = Striatojaponocapsa Kozur 1984 radiolarian
 Nassellaria - Eucyrtidiellidae
Eucyrtidiellum unumaense Yao 1979 radiolarian
ssp. pustulatum
 Nassellaria - Archaeodictyomitridae
 Nassellaria - Unumidae
Unuma sp. Ichikawa and Yao 1976 radiolarian
Unuma echinatus Ichikawa and Yao 1976 radiolarian
"Unuma gorda" = Unuma gordus Hull 1997 radiolarian
? Protunuma "sp. A" Ichikawa and Yao 1976 radiolarian
 Nassellaria - Hsuidae
Hsuidae indet. Pessagno and Whalen 1982 radiolarian
Hsuum speciosum radiolarian
Hsuum "sp. B" Pessagno 1977 radiolarian
Hsuum brevicostatum Ozvoldova 1975 radiolarian
Hsuum cf. brevicostatum Ozvoldova 1975 radiolarian
"Semihsuum rutogense" = Hsuum rutogense Yang and Wang 1990 radiolarian
"Semihsuum aff. rutogense" = Hsuum rutogense Yang and Wang 1990 radiolarian
Parahsuum stanleyense radiolarian
[entered as Parahsuum stanleyensis]
Parahsuum cf. simplum Yao 1982 radiolarian
Parahsuum aff. simplum Yao 1982 radiolarian
"? Combusta publica" = Parahsuum publicum Hull 1997 radiolarian
 Nassellaria -
Belleza decora radiolarian
Belleza cf. decora radiolarian
 Nassellaria - Xitidae
Xitus singularis Hull 1997 radiolarian
Xitus cf. singularis Hull 1997 radiolarian
 Nassellaria - Obeliscoitidae
Olanda olorina radiolarian
 Nassellaria - Eucyrtidiidae
? Stichomitra takanoensis Aita 1987 radiolarian
group
Guexella sp. Baumgartner 1984 radiolarian
written as Guxella sp.
 Nassellaria -
Canelonus conus Hull 1997 radiolarian
 Nassellaria - Tripedurnulidae
Turanta flexa radiolarian
Turanta luminosa radiolarian
 Nassellaria - Sethocapsidae
Kilinora catenarum radiolarian
Kilinora spiralis Matsuoka 1982 radiolarian
group
 Nassellaria - Hilarisiregidae
Hilarisirex sp. Takemura and Nakaseko 1982 radiolarian
 Nassellaria - Ultranaporidae
Napora collieri radiolarian
Napora redonda radiolarian
Napora sixi radiolarian
 Nassellaria - Parvicingulidae
Mirifusus sp. Pessagno 1977 radiolarian
Mirifusus guadalupensis Pessagno 1977 radiolarian
Mirifusus fragilis Baumgartner 1984 radiolarian
Pseudoristola clava radiolarian
Pseudoristola nova radiolarian
Pseudoristola "sp. A" Yeh 1987 radiolarian
? Praeparvicingula aff. discors Yang 1993 radiolarian
Ristola procera Pessagno 1977 radiolarian
Ristola altissima Rüst 1885 radiolarian
Ristola aff. altissima Rüst 1885 radiolarian
Parvicingula aff. dhimenaensis Baumgartner 1984 radiolarian
 Nassellaria - Spongocapsulidae
Obesacapsula sp. Pessagno 1977 radiolarian
Obesacapsula morroensis Pessagno 1977 radiolarian
Obesacapsula cf. morroensis Pessagno 1977 radiolarian
 Nassellaria - Syringocapsidae
Podobursa rosea radiolarian
Podobursa spinosa Ozvoldova 1975 radiolarian
group
Podobursa triacantha Fischli 1916 radiolarian
Podobursa helvetica Rüst 1885 radiolarian
 Nassellaria - Amphipyndacidae
Palinandromeda podbielensis Ozvoldova 1979 radiolarian
Palinandromeda fimbria Hull 1997 radiolarian
 Entactinaria - Saturnalidae
Acanthocircus suboblongus Yao 1972 radiolarian
"Saturnosphaera sp." = Pseudoheliodiscus Kozur and Mostler 1972 radiolarian
 Entactinaria - Eptingiidae
Perispyridium ordinarium Pessagno 1977 radiolarian
 Spumellaria - Angulobracchiidae
Paronaella aranae radiolarian
Paronaella bandyi Pessagno 1977 radiolarian
Angulobracchia "sp. C" Baumgartner 1980 radiolarian
 Spumellaria - Leugeonidae
Leugeonidae indet. Yang and Wang 1990 radiolarian
 Spumellaria -
Lampasa blomei radiolarian
 Spumellaria - Gomberellidae
Bernoullius dicera Baumgartner 1980 radiolarian
 Spumellaria - Archaeospongoprunidae
Archaeospongoprunum imlayi Pessagno 1977 radiolarian
Wilvemia sp. Pessagno et al. 1993 radiolarian
 Spumellaria - Praeconocaryommidae
 Spumellaria - Emiluviidae
Emiluvia nana radiolarian
Emiluvia premyogii Baumgartner 1984 radiolarian
Emiluvia hopsoni Pessagno 1977 radiolarian
Emiluvia chica Foreman 1973 radiolarian
s.l.
 Spumellaria - Hagiastridae
Tetraditryma pseudoplena Baumgartner 1980 radiolarian
Tetraditryma corralitosensis Pessagno 1977 radiolarian
s. str.
Higumastra boucoti radiolarian
Higumastra imbricata Ozvoldova 1979 radiolarian
 Spumellaria - Spongodiscidae
? Teichertus notus radiolarian
 Spumellaria - Xiphostylidae
Xiphostylidae indet. Haeckel 1881 radiolarian
Tripocyclia brooksi Pessagno et al. 1989 radiolarian
Xiphostylus sp. Haeckel 1881 radiolarian
Archaeocenosphaera aff. ruesti Pessagno et al. 1989 radiolarian
Zanola sp. Pessagno et al. 1989 radiolarian
 Spumellaria - Orbiculiformidae
Orbiculiforma sp. Pessagno 1973 radiolarian
 Spumellaria - Bolenidae
Bolenidae indet. Hull 1997 radiolarian
 Spumellaria - Parvivaccidae
Leugeo parvispinata, "Levileugeo ordinarius" = Leugeo ordinarius, Hexasphaera baumgartneri, "Tappanenella novacubica" = Tappanella, "Tappanella novacubica" = Tappanella, Helena exquisita, Lanubus sp.
Leugeo parvispinata Hull 1997 radiolarian
"Levileugeo ordinarius" = Leugeo ordinarius Yang and Wang 1990 radiolarian
"Tappanenella novacubica" = Tappanella radiolarian
Spelled Tappanella novacubica
"Tappanella novacubica" = Tappanella radiolarian
Helena exquisita radiolarian
Lanubus sp. Pessagno and Yang 1989 radiolarian
 Spumellaria - Pantanelliidae
Gorgansium sp. Pessagno and Blome 1980 radiolarian
Gorgansium pulchrum Kocher 1981 radiolarian
 Spumellaria - Tritrabidae
Tritrabs ewingi Pessagno 1977 radiolarian