Viljandi core - Sample 18: Pirgu, Estonia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Lingulata - Lingulida - Obolidae
Rowellella minuta Wright 1963
Lingulata - Lingulida - Paterulidae
Paterula cf. perfecta Cooper 1956
The valves examined are similar to the specimens described by Wright (1963) as Paterula cf. perfecta from the Portrane Limestone
Lingulata - Lingulida - Discinidae
Schizotreta cf. concava Wright 1963
They are very similar to S. concava Wright, 1963, in having the dorsal apex placed close to the posterior margin and ornamentation with coarse, ridge-like, concentric filae.
Lingulata - Siphonotretida - Siphonotretidae
Acanthambonia portranensis Wright 1963
Lingulata - Acrotretida - Acrotretidae
Spondylotreta cf. parva Wright 1963
Lingulata - Acrotretida - Ephippelasmatidae
Rhinotreta laeta (Popov et al. 1982)
Lingulata - Acrotretida - Eoconulidae
Eoconulus semiregularis Biernat 1973
Lingulata - Acrotretida - Biernatidae
Opsiconidion praecursor Popov et al. 1994
Hyolithelminthida
Phosphannulus sp.
see common names

Geography
Country:Estonia County:Vil'yandi
Coordinates: 58.4° North, 25.6° East (view map)
Paleocoordinates:28.8° South, 0.2° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Ordovician Epoch:Late/Upper Ordovician
Stage:Katian 10 m.y. bin:Ordovician 5
Key time interval:Pirgu Graptolite zone: Dicellograptus complanatus
Age range of interval:449.60000 - 445.20000 m.y. ago
Stratigraphy
Formation:Jonstorp
Local section:Viljandi Local bed:310.1 m
Local order:top to bottom
Stratigraphic resolution:bed
Stratigraphy comments: FIc of old scheme. Amorphognathus ordovicicus conodont zone.
Lithology and environment
Primary lithology:nodular "limestone"
Lithology description: nodular aphanitic limestone
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:core,field collection
Reason for describing collection:taxonomic analysis
Metadata
Also known as:Vil'yandi Borehole
Database number:173706
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2015-10-11 16:46:40 Last modified:2015-10-11 21:08:43
Access level:the public Released:2015-10-11 16:46:40
Creative Commons license:CC BY
Reference information

Primary reference:
56623. L. Popov, J. Nolvak, and L. E. Holmer. 1994. Late Ordovician lingulate brachiopods from Estonia. Palaeontology 37(3):627-650 [P. Wagner/P. Wagner]