Section 1, NSF 973, 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 beta - revision of chronostratigraphic assignment based on Baumgarnter et al. (1995) and Kiessling et al. (1999)

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified lime mudstone

• Dark gray micritic 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 50738: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 20.05.2005, edited by Adam Kocsis

Creative Commons license: CC BY (attribution)

Taxonomic list

Protozoa
 Actinommacea - Xiphostylidae
Triactoma spp.2 Rüst 1885 radiolarian
Tripocyclia spp.2 Haeckel 1881 radiolarian
Archaeocenosphaera spp.2 Pessagno et al. 1989 radiolarian
 Nassellaria - Obeliscoitidae
Olanda olorina radiolarian
 Nassellaria - Eucyrtidiidae
? Stichomitra takanoensis Aita 1987 radiolarian
group
Guexella sp. Baumgartner 1984 radiolarian
written as Guxella sp.
 Nassellaria - Xitidae
Xitus singularis Hull 1997 radiolarian
 Nassellaria - Unumidae
"Unuma gorda" = Unuma gordus
"Unuma gorda" = Unuma gordus Hull 1997 radiolarian
 Nassellaria - Hsuidae
Parahsuum stanleyense radiolarian
[entered as Parahsuum stanleyensis]
"? Combusta publica" = Parahsuum publicum Hull 1997 radiolarian
Parahsuum cf. simplum Yao 1982 radiolarian
Parahsuum aff. simplum Yao 1982 radiolarian
Hsuum cf. brevicostatum Ozvoldova 1975 radiolarian
 Nassellaria - Archaeodictyomitridae
Archaeodictyomitra rigida Pessagno 1977 radiolarian
 Nassellaria - Sethocapsidae
Kilinora catenarum radiolarian
 Nassellaria -
Canelonus conus Hull 1997 radiolarian
 Nassellaria - Eucyrtidiellidae
Eucyrtidiellum ptyctum Riedel and Sanfilippo 1974 radiolarian
 Nassellaria - Tripedurnulidae
Turanta flexa radiolarian
Turanta sp. Pessagno and Blome 1982 radiolarian
 Nassellaria - Spongocapsulidae
Spongocapsula palmerae Pessagno 1977 radiolarian
Obesacapsula sp. Pessagno 1977 radiolarian
Obesacapsula morroensis Pessagno 1977 radiolarian
 Nassellaria - Amphipyndacidae
Palinandromeda podbielensis Ozvoldova 1979 radiolarian
Palinandromeda fimbria Hull 1997 radiolarian
 Nassellaria - Parvicingulidae
Pseudoristola nova radiolarian
? Ristola bala1 radiolarian
Mirifusus sp.1 Pessagno 1977 radiolarian
Mirifusus fragilis1 Baumgartner 1984 radiolarian
Mirifusus guadalupensis1 Pessagno 1977 radiolarian
Mirifusus mediodilatatus1 Rüst 1885 radiolarian
? Praeparvicingula aff. discors1 Yang 1993 radiolarian
 Nassellaria - Syringocapsidae
Podobursa rosea radiolarian
Podobursa triacantha Fischli 1916 radiolarian
Podobursa helvetica Rüst 1885 radiolarian
Podobursa spinosa Ozvoldova 1975 radiolarian
group
 Nassellaria - Williriedellidae
Praewilliriedellum cephalospinosum, Williriedellum carpathicum, "Striatojaponicapsa plicarum" = Striatojaponocapsa, "? Zhamoidellum exquisita" = Zhamoidellum, "Zhamoidellum triangulosa" = Zhamoidellum, "? Complexapora cf. kozuri" = Zhamoidellum
Praewilliriedellum cephalospinosum Kozur 1984 radiolarian
Williriedellum carpathicum Dumitrica 1970 radiolarian
"Striatojaponicapsa plicarum" = Striatojaponocapsa radiolarian
s. str.
"? Zhamoidellum exquisita" = Zhamoidellum radiolarian
"Zhamoidellum triangulosa" = Zhamoidellum radiolarian
"? Complexapora cf. kozuri" = Zhamoidellum radiolarian
 Spumellaria - Bolenidae
Bolenidae indet. Hull 1997 radiolarian
 Spumellaria - Hagiastridae
Higumastra boucoti radiolarian
Crucella theokaftensis Baumgartner 1980 radiolarian
Tetraditryma aff. praeplena Baumgartner 1984 radiolarian
 Spumellaria - Archaeospongoprunidae
Archaeospongoprunum imlayi Pessagno 1977 radiolarian
 Spumellaria - Parvivaccidae
"Levileugeo ordinarius" = Leugeo ordinarius Yang and Wang 1990 radiolarian
Lanubus sp. Pessagno and Yang 1989 radiolarian
 Spumellaria - Angulobracchiidae
Angulobracchia "sp. C" Baumgartner 1980 radiolarian
Angulobracchia purisimaensis Pessagno 1977 radiolarian
Paronaella aranae radiolarian
 Spumellaria - Pantanelliidae
Gorgansium pulchrum Kocher 1981 radiolarian
 Spumellaria - Orbiculiformidae
Orbiculiforma sp. Pessagno 1973 radiolarian
 Spumellaria - Emiluviidae
Emiluvia hopsoni Pessagno 1977 radiolarian