Ülgase section, Maardu Member (Ordovician of Estonia)

Where: Harju, Estonia (59.5° N, 25.1° E: paleocoordinates 42.9° S, 8.9° W)

• coordinate estimated from map

When: Maardu Member (Kallavere Formation), Pakerort (485.4 - 484.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: shallow subtidal; gray sandstone

• "The sequence of the Maardu member can be interpreted as two transgressive sedimentary cycles, commencing with a brachiopod coquina and coarse-grained

•sandstones and terminating with fine-grained sandstones.", in Puura & Holmer (1993)

•(see also Heinsalu et al. 1957. fig. 1).

Size classes: macrofossils, mesofossils

Primary reference: I. Puura and L. E. Holmer. 1993. Lingulate brachiopods from the Cambrian-Ordovician boundary beds in Sweden. Geologiska Föreningens i Stockholm Förhandlingar 115(3):215-237 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 191667: authorized by Björn Kröger, entered by Björn Kröger on 08.02.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Lingulata
 Lingulida - Obolidae
Obolus eichwaldi, Ungula ingrica, Schmidtites celatus, "Oepikites obtusus" = Oepikites obtusus, "Schmidtites obtusus" = Oepikites obtusus
Obolus eichwaldi Mickwitz 1896
Ungula ingrica Eichwald 1829
Schmidtites celatus Volborth 1869
"Oepikites obtusus" = Oepikites obtusus Mickwitz 1896
"Schmidtites obtusus" = Oepikites obtusus Mickwitz 1896
 Acrotretida - Ceratretidae
Keyserlingia buchii
Keyserlingia buchii deVerneuil 1845
Gymnolaemata
 Ctenostomata - Vinellidae
Marcusodictyon priscum