Section 2, SM-29, Stanley Mountain, California: Early/Lower Tithonian, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Xiphostylidae
Tripocyclia foremanae Pessagno et al. 1989
common category
Protozoa - Nassellaria - Parvicingulidae
Mirifusus baileyi Pessagno 1977
Hull 1995 common category
Caneta hsui (Pessagno 1977)
Hull 1995 rare category
Praeparvicingula sencilla
Hull 1995 rare category
Praeparvicingula rotunda Hull 1995
Hull 1995 rare category
Parvicingula obstinata
Hull 1995 rare category
Parvicingula aff. obstinata
Hull 1995 rare category
Parvicingula turrita (Rüst 1898)
Hull 1995 common category
Parvicingula colemani Pessagno and Blome 1984
Hull 1995 rare category
Parvicingula corona Hull 1995
Hull 1995 rare category
Parvicingula blowi Pessagno 1977
Hull 1995 rare category
Praeparvicingula excelsa (Pessagno and Blome 1984)
Hull 1995 common category
original and current combination Parvicingula excelsa
Protozoa - Nassellaria - Williriedellidae
Praezhamoidellum frequens (Tan Sin Hok 1927)
rare category
recombined as Williriedellum frequens
Zhamoidellum parva
rare category
Complexapora kozuri
common category
synonym of Zhamoidellum
Complexapora kiesslingi
common category
synonym of Zhamoidellum
Protozoa - Nassellaria - Hsuidae
Hsuum naturale
rare category
Protozoa - Spumellaria - Orbiculiformidae
Orbiculiforma sp. Pessagno 1973
rare category
Protozoa - Spumellaria
Phantum cf. insperatum
rare category
Protozoa - Spumellaria - Parvivaccidae
Acastea dura
rare category
Acastea tenuis
rare category
see common names

Geography
Country:United States State/province:California
Coordinates: 35.1° North, 120.2° West (view map)
Paleocoordinates:30.5° North, 65.5° West
Basis of coordinate:based on nearby landmark
Geographic resolution:hand sample
Time
Period:Jurassic Epoch:Late/Upper Jurassic
Stage:Tithonian 10 m.y. bin:Jurassic 6
Key time interval:Early/Lower Tithonian
Age range of interval:149.20000 - 146.30000 m.y. ago
Stratigraphy
Geological group:Volcanopelagic Succession Formation:Unit 2
Local section:Section 2 Local bed:100 m
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: Zone 4 beta - revision of chronostratigraphic assignment based on Baumgarnter et al. (1995) and Kiessling et al. (1999)
Lithology and environment
Primary lithology:red lithified cherty/siliceous mudstone
Lithology description: Thin-bedded red siliceous mudstone
Environment:basinal (siliceous) Tectonic setting:deep ocean basin
Taphonomy
Modes of preservation:body,original silica
Size of fossils:microfossils
Preservation of anatomical detail:medium
Abundance in sediment:few
Collection methods and comments
Collection methods:bulk,hydrochloric,field collection
Reason for describing collection:taxonomic analysis
Collection method comments: Radiolarians only
Metadata
Database number:50745
Authorizer:W. Kiessling Enterer:W. Kiessling
Modifier:W. Kiessling Research group:micropaleontology
Created:2005-05-20 01:43:47 Last modified:2005-05-20 04:43:48
Access level:the public Released:2005-05-20 01:43:47
Creative Commons license:CC BY
Reference information

Primary reference:
13552. 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]

Secondary references:

13556 D. M. Hull. 1995. Morphologic diversity and paleogeographic signficance of the family Parvicingulidae (Radiolaria). Micropaleontology 41:1-48 [W. Kiessling/W. Kiessling/W. Kiessling]