unknown quarry near Vasalemma (Ordovician of Estonia)

Where: Harju, Estonia (59.2° N, 24.4° E: paleocoordinates 33.0° S, 1.7° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Baltoniodus alobatus conodont zone, Vasalemma Formation, Keila (460.9 - 455.8 Ma)

• Conodont zone based on Hints, Martma, Männik, Nolvak, Poldvere, Shen & Viira 2014. See also Bergström in Ebbestad et al. 2007. Formation is divided into four members, but no member information provided. (Only one, the Saku, extends into the Oandu.) Vasalemma overlies the Kahula formation and underlies the Ragavere formation.

• formation-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, shelly/skeletal grainstone and limestone

• Lithologically, the Vasalemma Formation consists of bioclastic grainstones and reef-core limestones (Kröger et al. 2014). It comprises a succession of facies, including a bryozoan framestone, echinoderm bindstone, bryozoan–receptaculitid–microbial framestone, and tabulate bafflestone (Kröger et al. 2014, 2016).

Size classes: macrofossils, mesofossils

Primary reference: D. F. Wright and U. Toom. 2017. New crinoids from the Baltic region (Estonia): fossil tip-dating phylogenetics constrains the origin and Ordovician–Silurian diversification of the Flexibilia (Echinodermata). Palaeontology 60(6) [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 188423: authorized by Pete Wagner, entered by Pete Wagner on 31.08.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Crinoidea
 Sagenocrinida - Homalocrinidae
Tintinnabulicrinus estoniensis n. gen. n. sp. Wright and Toom 2017 Sea lily