Where: Amazonas, Peru (6.4° S, 77.9° W: paleocoordinates 12.6° S, 44.7° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Aramachay Formation (Pucara Group), Late/Upper Hettangian to Late/Upper Hettangian (201.3 - 189.6 Ma)
• Hettangian/Sinemurian boundary
• bed-level stratigraphic resolution
Environment/lithology: deep-water; lithified siltstone and lithified limestone
Size class: microfossils
Primary reference: H. Suzuki, P. Prinz-Grimm, and R. Schmidt-Effing. 2002. Radiolarien aus dem Grenzbereich Hettangium/Sinemurium von Nordperu [Radiolarians from the Hettangian/Sinemurian boundary of northern Peru]. Palaeontologische Zeitschrift 76(2):163-187 [W. Kiessling/U. Merkel]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 94849: authorized by Wolfgang Kiessling, entered by Uta Merkel on 31.03.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Protozoa | |
"Cenosphaera clathrata" = Archaeocenosphaera clathrata
"Cenosphaera clathrata" = Archaeocenosphaera clathrata Parona 1890 radiolarian | |
Canutus rockfishensis Pessagno and Whalen 1982 radiolarian
Droltus hecatensis Pessagno and Whalen 1982 radiolarian
Droltus lyellensis Pessagno and Whalen 1982 radiolarian | |
Perseus tingoensis n. sp.
Perseus tingoensis n. sp. Suzuki et al. 2002 radiolarian | |
Canoptum dixoni Pessagno and Whalen 1982 radiolarian
Wrangellium oregonense Yeh 1987 radiolarian | |
Trexus dodgensis Carter et al. 1998 radiolarian | |
Bipedis fannini, "Jacus "sp. A"" = Napora
Bipedis fannini Carter 1988 radiolarian
"Jacus "sp. A"" = Napora Pessagno 1977 radiolarian | |
Empirea "sp. A" Carter et al. 1998 radiolarian
Empirea "sp. B" Carter et al. 1998 radiolarian | |
Charlottea johnsoni Carter et al. 1998 radiolarian
Charlottea cf. johnsoni Carter et al. 1998 radiolarian
Charlottea amurensis Carter et al. 1998 radiolarian
Charlottea cf. amurensis Carter et al. 1998 radiolarian | |
Stylospongia "sp. A", Spongotripus sp., Spongotripus "sp. A", Spongotripus "sp. B", Spongotripus "sp. C"
Stylospongia "sp. A" Haeckel 1862 radiolarian
Spongotripus "sp. A" radiolarian
Spongotripus "sp. B" radiolarian
Spongotripus "sp. C" radiolarian | |
Pseudocrucella "sp. E", Crucella "sp. A", Crucella squama, Crucella mijo, Hagiastrum rudimentum, Udalia plana
Pseudocrucella "sp. E" Baumgartner 1980 radiolarian
Crucella "sp. A" Pessagno 1971 radiolarian
Crucella squama Kozlova 1971 radiolarian
Crucella mijo De Wever 1981 radiolarian
Hagiastrum rudimentum Carter et al. 1998 radiolarian
Udalia plana Carter et al. 1998 radiolarian | |
Praeconocaryomma parvimamma Pessagno and Poisson 1981 radiolarian
Praeconocaryomma media Pessagno and Poisson 1981 radiolarian | |
Spongostaurus "sp. A" Haeckel 1882 radiolarian | |
Beatricea christovalensis Carter et al. 1998 radiolarian
Beatricea cf. christovalensis Carter et al. 1998 radiolarian | |
Paronaella gemmata De Wever 1981 radiolarian
Paronaella bona Yeh 1987 radiolarian
? Bistarkum "sp. A" Yeh 1987 radiolarian
Thurstonia minutaglobus Carter et al. 1998 radiolarian |