Unit 3 of the Buya Formation in Indonesia (Jurassic of Indonesia)

Where: Sula Islands, Indonesia (2.0° S, 125.0° E: paleocoordinates 21.1° N, 137.7° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Buya Formation, Oxfordian (163.5 - 157.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified, calcareous mudstone

• The Buya Formation is divided into five informal units.This paper describes Unit 3 which is calcareous mudstone with mumerous dark to medium gray micrite nodules.

Size class: microfossils

Primary reference: S. E. MacLeod and L. V. Hills. 1990. Conformable Late Jurassic (Oxfordian) to Early Cretaceous Strata, northern Bowser Basin, British Columbia: a sedimentological and paleontological model. Canadian Journal of Earth Sciences 27:989-998 [A. Miller/D. Schramm/D. Schramm]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 41190: authorized by Arnold Miller, entered by Danielle Schramm on 08.07.2004, edited by Wolfgang Kiessling

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Praparvicingula bandaensis n. sp.2, Praparvicingula deadhorsensis2, Praparvicingula hurdygurdyensis2, Praparvicingula aff. hurdygurdyensis2, Praparvicingula "sp. A"2, Praparvicingula "sp. B"2, Praparvicingula "sp. C"2, Praparvicingula spp.2
Protozoa
 Spumellaria - Orbiculiformidae
Orbiculiforma "sp. A"2, Orbiculiforma spp.2
Orbiculiforma "sp. A"2 Pessagno 1973 radiolarian
3 (RCA Scale 1-3) 1: Rare 2: Common 3: Abundant
Orbiculiforma spp.2 Pessagno 1973 radiolarian
3
 Spumellaria - Angulobracchiidae
Paronaella cleopatraensis2, Paronaella spp.2, Paronaella "sp. A", Paronaella "sp. B", Paronaella "sp. C", Paronaella cf. bandyi2, "Bigrumpta molluccaensis n. sp." = Bistarkum2, "Bigrumpta spp." = Bistarkum2, "Grumpta australis n. sp." = Bistarkum2, "Grumpta sulaensis n. sp." = Bistarkum2, "Grumpta "sp. A"" = Bistarkum2
Paronaella spp.2 Pessagno 1971 radiolarian
3
Paronaella "sp. A" Pessagno 1971 radiolarian
Paronaella "sp. B" Pessagno 1971 radiolarian
Paronaella "sp. C" Pessagno 1971 radiolarian
Paronaella cf. bandyi2 Pessagno 1977 radiolarian
1
"Bigrumpta molluccaensis n. sp." = Bistarkum2 radiolarian
3
"Bigrumpta spp." = Bistarkum2 Yeh 1987 radiolarian
3
"Grumpta australis n. sp." = Bistarkum2 radiolarian
3
"Grumpta sulaensis n. sp." = Bistarkum2 radiolarian
3
"Grumpta "sp. A"" = Bistarkum2 Yeh 1987 radiolarian
1
 Spumellaria - Pantanelliidae
Gorgansium "sp. A"2, Gorgansium spp.2
Gorgansium "sp. A"2 Pessagno and Blome 1980 radiolarian
1
Gorgansium spp.2 Pessagno and Blome 1980 radiolarian
2
 Spumellaria - Hagiastridae
Crucella capaluluensis n. sp.2, Crucella hamiltoni n. sp.2, Crucella taliabuensis n. sp.2, Crucella westermanni n. sp.2, Crucella spp.2
Crucella capaluluensis n. sp.2 radiolarian
3
Crucella hamiltoni n. sp.2 radiolarian
3
Crucella taliabuensis n. sp.2 radiolarian
3
Crucella westermanni n. sp.2 radiolarian
3
Crucella spp.2 Pessagno 1971 radiolarian
3
 Entactinaria - Saturnalidae
Acanthocircus kozuri n. sp.2, Acanthocircus tansinhoki n. sp.2, Acanthocircus waigaloensi n. sp.2, Acanthocircus "sp. A"2, Acanthocircus spp.2
Acanthocircus kozuri n. sp.2 radiolarian
3
Acanthocircus tansinhoki n. sp.2 radiolarian
3
Acanthocircus waigaloensi n. sp.2 radiolarian
3
Acanthocircus "sp. A"2 Squinabol 1903 radiolarian
1
Acanthocircus spp.2 Squinabol 1903 radiolarian
3
 Nassellaria - Bagotidae
Aitaum bipartitum n. sp.2, Aitaum yehae n. sp.2, Aitaum spp.2
Aitaum bipartitum n. sp.2 radiolarian
3
Aitaum yehae n. sp.2 radiolarian
3
Aitaum spp.2 Pessagno and Hull 2002 radiolarian
3
 Nassellaria - Parvicingulidae
Praeparvicingula bandaensis n. sp.1, Praeparvicingula hurdygurdyensis1, Praeparvicingula aff. hurdygurdyensis1, Praeparvicingula "sp. A"1, Praeparvicingula "sp. B"1, Praeparvicingula "sp. C"1, Praeparvicingula sp.1, "Praeparvicingula deadhorsensis" = Parvicingula deadhorsensis1, ? Caneta "sp. A"2, ? Caneta spp.2
Praeparvicingula bandaensis n. sp.1 radiolarian
3
Praeparvicingula "sp. A"1 Pessagno et al. 1993 radiolarian
1
Praeparvicingula "sp. B"1 Pessagno et al. 1993 radiolarian
1
Praeparvicingula "sp. C"1 Pessagno et al. 1993 radiolarian
1
Praeparvicingula sp.1 Pessagno et al. 1993 radiolarian
3
"Praeparvicingula deadhorsensis" = Parvicingula deadhorsensis1 Pessagno et al. 1993 radiolarian
2
? Caneta "sp. A"2 Pessagno et al. 1993 radiolarian
1
? Caneta spp.2 Pessagno et al. 1993 radiolarian
1
1Kiessling 1995; 2Pessagno and Hull 2002