Lava River canyon, Bed 33A: Kunda, Russian Federation

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Porambonites costata Pander 1830
Strophomenata - Billingsellida - Gonambonitidae
Gonambonites sp. Pander 1830
Strophomenata - Billingsellida - Clitambonitidae
Hemipronites imbricata (Opik 1934)
Strophomenata - Billingsellida - Polytoechiidae
Antigonambonites planus (Pander 1830)
Gonambonites plana
Strophomenata - Strophomenida - Taffiidae
Ahtiella sp. Öpik 1932
    = Ukoa ornata Öpik 1932
Pedersen and Rasmussen 2019
Strophomenata - Strophomenida - Plectambonitidae
Ingria sp. Öpik 1930
Rhynchonellata - Orthida - Lycophoriidae
Lycophoria sp. Lahusen 1885
Rhynchonellata - Orthida - Productorthidae
Glossorthis sp. Öpik 1930
Rhynchonellata - Pentamerida
Syntrophiidina indet. Ulrich and Cooper 1936
see common names

Geography
Country:Russian Federation State/province:St. Petersburg
Coordinates: 59.9° North, 31.6° East (view map)
Paleocoordinates:35.8° South, 1.4° East
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Ordovician Epoch:Middle Ordovician
10 m.y. bin:Ordovician 2-3
Key time interval:Kunda Trilobite zone: Asaphus expansus
Age range of interval:467.10000 - 462.90000 m.y. ago
Stratigraphy
Formation:Sillaoru Member:Nikolskoe
Local section:Lava River Canyon Local bed:33 A
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: ~ 10 cm below top of zone.
Lithology and environment
Primary lithology: calcareous claystone
Secondary lithology:ooidal argillaceous "limestone"
Lithology description: "The Sillaoru Formation is about 85 cm thick, the Nikolskoe Member constituting some 65 cm of the formation. Furthermore, here, both the base and the top of the member are marked by purple phosphatized hardground surfaces. It consists of calcareous clay with highly argillaceous limestone with numerous iron ooliths. The carbonates are heavily bioturbated, penetrated often by Skolithos burrows together with Trypanites type borings.", in Rasmussen & Harper (2008)
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:191354
Authorizer:B. Kröger, P. Wagner Enterer:B. Kröger, P. Wagner
Modifier:P. Wagner
Created:2018-01-23 11:51:55 Last modified:2019-08-13 11:03:32
Access level:the public Released:2018-01-23 11:51:55
Creative Commons license:CC BY
Reference information

Primary reference:
64540. C. M. O. Rasmussen and D. A. T. Harper. 2008. Resolving early Mid-Ordovician (Kundan) bioevents in the East Baltic based on brachiopods. Geobios 41:533-542 [B. Kröger/B. Kröger]

Secondary references:

69737 M. Pedersen and C. M. Ø Rasmussen. 2019. The glacially induced Middle Ordovician rise of the Plectambonitoidea (Brachiopoda) and the phylogenetic placement of the Baltic genus Ukoa. Palaeogeography, Palaeoclimatology, Palaeoecology 534 [P. Wagner/P. Wagner/M. Uhen]