Cal. Coast Ranges, Franciscan Complex, NSF-909 (Jurassic of the United States)

Where: California (34.7° N, 119.9° W: paleocoordinates 30.0° N, 65.4° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Early/Lower Tithonian (150.8 - 145.0 Ma)

• zone 3

•subzone 3 beta

•15,8 m above contact with CRO

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, gray limestone and lithified, tuffaceous, gray, green chert

• Small, light-gray, micritic limestone nodules occurring in light-green to gray tuffaceous chert

Size class: microfossils

Primary reference: E. Pessagno, W. M. Six, and Q. Yang. 1989. The Xiphostylidae Haeckel and Parvivaccidae, n. fam, (Radiolaria) from the North American Jurassic. Micropaleontology 35(3):193-255 [J. Pálfy/A. Kocsis]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127814: authorized by József Pálfy, entered by Adam Kocsis on 24.05.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

• Abundance data given as rare (1-2 specimens); common (3-6 specimens); abundant (6+ specimens). Data entered using conservative values of 1, 3, and 6 for rare, common and abundant, respectively.
Show authors, comments, and common names
Protozoa
 Actinommacea - Xiphostylidae
Tripocyclia spp., Archaeocenosphaera spp., "Tripocyclia jonesi" = Triactoma jonesi
Tripocyclia spp. Haeckel 1881 radiolarian
Archaeocenosphaera spp. Pessagno et al. 1989 radiolarian
"Tripocyclia jonesi" = Triactoma jonesi Pessagno 1977 radiolarian