Vasalemma, Vasalemma Fm. (Ordovician of Estonia)

Where: Harju, Estonia (59.2° N, 24.3° E: paleocoordinates 33.0° S, 1.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Vasalemma Formation, Keila (453.9 - 453.0 Ma)

Environment/lithology: reef, buildup or bioherm; lithified, carbonaceous limestone

Size classes: macrofossils, mesofossils

Primary reference: B. Kröger and M. Isakar. 2006. Revision of annulated orthoceridan cephalopods of the Baltoscandic Ordovician. Fossil Record 9(1):137-163 [B. Kröger/B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87273: authorized by Björn Kröger, entered by Torsten Liebrecht on 13.03.2009, edited by Loic Villier and Björn Kröger

Creative Commons license: CC BY (attribution)

Taxonomic list

Asteroidea
 Euaxosida - Palasterinidae
Estoniaster maennili n. gen. n. sp.2
Estoniaster maennili n. gen. n. sp.2 Blake and Rozhnov 2007 sea star
Edrioasteroidea
 Cyathocystida - Cyathocystidae
Cyathocystis sp.2 Schmidt 1879
Rhombifera
 Hemicosmitoida - Hemicosmitidae
Hemicosmites sp.2 Buch 1840
Cephalopoda
 Orthocerida - Proteoceratidae
Isorthoceras vexilli4 Kröger and Aubrechtova 2017
Isorthoceras cavi4 Kröger and Aubrechtova 2017
 Orthocerida - Orthoceratidae
Striatocycloceras undulostriatum Hall 1847
two specimens in Kröger & Aubrechtova, in 2017
Pleurorthoceras organi4 Kröger and Aubrechtova 2017
 Dissidocerida - Geisonoceratidae
 Actinocerida - Ormoceratidae
Orthonybyoceras sp.4 Shimizu and Obata 1935
Orthonybyoceras isakari4 Kröger and Aubrechtova 2017
Orthonybyoceras moisense4 Kröger and Aubrechtova 2017
 Barrandeocerida - Barrandeoceratidae
 Discosorida - Westonoceratidae
Hemibeloitoceras sp.4 Balashov 1962
Hemibeloitoceras molis4 Kröger and Aubrechtova 2017
 Tarphycerida - Trocholitidae
Curtoceras abditus4 Kröger and Aubrechtova 2017
Discoceras sp.4 Barrande 1867
Discoceras vasalemmense4 Balaschov 1953
Trocholites gennadii4 Kröger and Aubrechtova 2017
 Oncocerida -
Oncocerida indet.4 Flower and Kummel 1950
 Oncocerida - Oncoceratidae
Beloitoceras cautis4 Kröger and Aubrechtova 2017
Stenolaemata
 Trepostomida - Monticuliporidae
Dittopora colliculata1 Eichwald 1856
 Trepostomata - Halloporidae
"Callopora ligniformis" = Hallopora ligniformis1
"Callopora ligniformis" = Hallopora ligniformis1 Dybowski 1877
Rhynchonellata
 Orthida - Glyptorthidae
Bassettella alata3 Hints 2010
Strophomenata
 Billingsellida - Clitambonitidae
Vellamo defecta5 Opik 1934