JO 86A-E, Volcanic member Josephine ophiolite (Jurassic of the United States)

Where: California (42.0° N, 123.8° W: paleocoordinates 33.3° N, 63.9° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Volcanic Member (Josephine Formation), Bajocian (170.3 - 168.3 Ma)

• Zone 1H. Age re-assigned based on Baumgartner et al. (1995).

•Informal Formation name. Stated as Volcanic member, Josephine Ophiolite

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified, tuffaceous chert

• Smith River Subterrane
• Tuffaceous cherts within upper basalt member of Josephine Ophiolite

Size class: microfossils

Preservation: original silica

Collection methods: chemical, hydroflouric,

Primary reference: E. A. Pessagno, Jr., C. D. Blome, D. M. Hull and W. M. Six. 1993. Jurassic radiolaria from the Josephine ophiolite and overlying strata, Smith River subterrane (Klamath Mountains), northwestern California and southwestern Oreg. Micropaleontology 39:93-166 [W. Kiessling/W. Kiessling/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 51631: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 09.06.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Radiolaria
 Nassellaria - Williriedellidae
"Quarkus madstonensis" = Williriedellum madstonense
"Quarkus madstonensis" = Williriedellum madstonense Pessagno et al. 1993 radiolarian
 Nassellaria -
? Tricolocapsa sp. Haeckel 1881 radiolarian
 Nassellaria - Unumidae
Protunuma aff. multicostatus radiolarian
[entered as Protunuma multicostata]
 Nassellaria - Hsuidae
Hsuum baldfacense radiolarian
Hsuum sp. Pessagno 1977 radiolarian
Hsuum brevicostatum Ozvoldova 1975 radiolarian
Semihsuum sp. Pessagno et al. 1993 radiolarian
 Nassellaria - Eucyrtidiidae
Stichocapsa aff. convexa Yao 1979 radiolarian
Stichocapsa japonica Yao 1979 radiolarian
 Nassellaria - Ultranaporidae
Napora sp. Pessagno 1977 radiolarian
 Nassellaria - Parvicingulidae
"Praecaneta decora" = Praeparvicingula decora, "Praecaneta sp." = Praeparvicingula, Ristola sp., Ristola aff. procera
"Praecaneta decora" = Praeparvicingula decora Pessagno and Whalen 1982 radiolarian
"Praecaneta sp." = Praeparvicingula Pessagno et al. 1993 radiolarian
Ristola sp. Pessagno and Whalen 1982 radiolarian
Ristola aff. procera Pessagno 1977 radiolarian
 Nassellaria - Spongocapsulidae
Spongocapsula sp. Pessagno 1977 radiolarian
 Entactinaria - Eptingiidae
Perispyridium sp. Dumitrica 1978 radiolarian
 Spumellaria - Angulobracchiidae
Paronaella sp. Pessagno 1971 radiolarian
 Spumellaria - Archaeospongoprunidae
Archaeospongoprunum sp. Pessagno 1973 radiolarian
Wilvemia sp. Pessagno et al. 1993 radiolarian
 Spumellaria - Xiphostylidae
Xiphostylus sp. Haeckel 1881 radiolarian
 Spumellaria - Parvivaccidae
Levileugeo sp. Yang and Wang 1990 radiolarian
 Spumellaria - Patulibracchiidae