Where: Sumatra, Indonesia (1.0° S, 100.5° E: paleocoordinates 2.1° N, 117.9° E)
• coordinate estimated from map
• local area-level geographic resolution
When: Ngalau Chert Formation, Aalenian to Aalenian (174.1 - 168.3 Ma)
• thickness: >20m
• bed-level stratigraphic resolution
Environment/lithology: marine; chert
Size class: microfossils
Primary reference: A. J. McCarthy, B. Jasin, and N. S. Haile. 2001. Middle Jurassic radiolarian chert, Indarung, Padang District, and its implications for the tectonic evolution of western Sumatra, Indonesia. Journal of Asian Earth Scienses 19:31-44 [W. Kiessling/F. Reichel/F. Reichel]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 85473: authorized by Wolfgang Kiessling, entered by Falko Reichel on 26.12.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
| Protozoa | |
|
Pseudoeucyrtis sp. Pessagno 1977 radiolarian | |
|
Parahsuum sp. Yao 1982 radiolarian
Hsuum cf. matsuokai Isozaki and Matsuda 1985 radiolarian
Transhsuum sp. Takemura 1986 radiolarian | |
|
Archicapsa cf. pachyderma radiolarian | |
|
Parvicingula sp. Pessagno 1977 radiolarian
Parvicingula cf. spinata radiolarian | |
|
Katroma sp. Pessagno and Poisson 1981 radiolarian | |
|
Bernoullius sp. Baumgartner 1984 radiolarian | |
|
Tetratrabs sp. Baumgartner 1980 radiolarian | |
|
Praeconocaryomma sp. Pessagno 1976 radiolarian
Praeconocaryomma cf. decora Yeh 1987 radiolarian | |
|
Spongotrochus sp. Haeckel 1860 radiolarian | |
Angulobracchia sp., Paronaella sp., Paronaella cf. corpulenta, Paronaella cf. skowkonaensis, Bistarkum sp.
Angulobracchia sp. Baumgartner 1980 radiolarian
Paronaella sp. Pessagno 1971 radiolarian
Paronaella cf. corpulenta De Wever 1981 radiolarian
Paronaella cf. skowkonaensis Carter 1988 radiolarian
Bistarkum sp. Yeh 1987 radiolarian | |
|
Orbiculiforma sp. Pessagno 1973 radiolarian | |
|
Homoeoparonaella cf. elegans Pessagno 1977 radiolarian | |