Oandu Stage, North Estonia, Rookula core - Patzkowsky (Ordovician of Estonia)
Where: Rookula, Estonia (59.0° N, 26.0° E: paleocoordinates 31.8° S, 0.4° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Hirmuse Formation, Oandu (453.0 - 451.8 Ma)
Environment/lithology: shallow subtidal; argillaceous marl and carbonaceous claystone
• Argillaceous marls and carbonate clays intercalating with more or less argillaceous limestones. Occurrence of thin laminated marls and limestones with some fine sand on different stratigraphical levels.
Collection methods: core,
Primary reference: L. Hints. 1998. Oandu stage (Caradoc) in central North Estonia. Proceedings of the Estonian Academy of Science 47(3):158-172 [M. Patzkowsky/Z. Krug/Z. Krug]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 37773: authorized by Mark Patzkowsky, entered by Zack Krug on 23.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
unclassified | |
Trilobita | |
Toxochasmops sp. McNamara 1979 trilobite | |
Rhynchonellata | |
Platystrophia ex gr. dentata Pander 1830
Platystrophia crassoplicata Alichova 1951 | |
Howellites wesenbergensis Alichova 1951 | |
Oanduporella reticulata Hints 1975 | |
Zygospira sp. Hall 1862 | |
Rhynchotrema cf. parva Oraspold 1956 | |
Porambonites sp. Pander 1830 | |
Camerella sp. Billings 1859 | |
Strophomenata | |
Ilmarinia sp. Opik 1934
Vellamo sp. Opik 1930 | |
"Rafinesquina (? Platyfairia) oanduensis" = Hedstroemina oanduensis, Kjaerina sp., Kjaerina poljensis, "Leptaena" sp.
"Rafinesquina (? Platyfairia) oanduensis" = Hedstroemina oanduensis Oraspold 1956
Kjaerina sp. Bancroft 1929
Kjaerina poljensis Alichova 1951
"Leptaena" sp. Dalman 1828 | |
Sowerbyella tenera Rõõmusoks 1959 | |
Craniata | |
Paracrinoidea | |
Achradocystites schmidti Hecker 1958 |