BG 54 (Cretaceous of Italy)

Where: Italy (43.4° N, 12.6° E: paleocoordinates 26.3° N, 12.9° E)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Scaglia Bianca Formation, Middle Cenomanian (99.6 - 93.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified, lenticular chert and lithified limestone

Size class: microfossils

Preservation: original silica, replaced with silica

Collection methods: chemical, sieve,

Primary reference: B. Musavu-Moussavou, T. Danelian, F. Baudin, R. Coccioni, and F. Fröhlich. 2007. The Radiolarian biotic response during OAE2. A high resolution study across the Bonarelli Level at Bottaccione (Gubbio, Italy). Revue de Micropaléontologie 50(3):253-287 [T. Danelian/T. Danelian]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 77291: authorized by Taniel Danelian, entered by Taniel Danelian on 08.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Protozoa
 Spumellaria - Archaeospongoprunidae
Archaeospongoprunum cortinaensis Pessagno 1973 radiolarian
 Spumellaria - Angulobracchiidae
Paronaella solanoensis Pessagno 1971 radiolarian
 Spumellaria - Cavaspongiidae
 Spumellaria - Praeconocaryommidae
Praeconocaryomma lipmanae Pessagno 1976 radiolarian
 Spumellaria - Sponguridae
Patellula cognata radiolarian
Patellula helios radiolarian
 Spumellaria - Pseudoaulophacidae
 Spumellaria - Dactyliosphaeridae
 Spumellaria - Patulibracchiidae
Pessagnobrachia fabianii Squinabol 1914 radiolarian
 Spumellaria - Hagiastridae
Crucella irwini Pessagno 1971 radiolarian
Crucella messinae Pessagno 1971 radiolarian
 Nassellaria - Pseudodictyomitridae
Pseudodictyomitra pseudomacrocephala Squinabol 1903 radiolarian
 Nassellaria - Xitidae
Xitus mclaughlini radiolarian
Xitus spicularius Aliev 1961 radiolarian
 Nassellaria - Eucyrtidiidae
Stichomitra communis Squinabol 1903 radiolarian
 Nassellaria - Williriedellidae
Cryptamphorella conara Foreman 1968 radiolarian
 Nassellaria - Archaeodictyomitridae
Dictyomitra formosa Squinabol 1904 radiolarian
 Nassellaria - Syringocapsidae
 Entactinaria - Saturnalidae
Acanthocircus venetus Squinabol 1914 radiolarian
 Radiolaria - Actinommidae