ORDOVICIAN STRATIGRAPHY OF 2014 Correlation of the formations (members) s e m Stage

e Conodont zones e g southern Estonia, i t Graptolite zones a r & index, t e and subzones NW Estonia northern Estonia central Estonia western Latvia, y s S S S substage NW Lithuania Coronograpt. cyphus Hilliste Tamsalu Distomodus Õhne ? kentuckyensis Õhne Silur. Rhud.

Lland. Varbola Varbola G1-2 Metabolo. persculptus Saldus Saldus Metabolograptus F Kuldiga extraordinarius II Hirnantian Ärina Ärina Adila Dicellograptus anceps Amorphognathus U Adila Adila Jelgava ordovicicus Halliku Dicellograptus F c complanatus I L Moe Moe Moe Jonstorp

VORMSI FIb Kõrgessaare Kõrgessaare Tudulinna Fjäcka Pleurograptus linearis ? NABALA U Saunja Saunja Saunja Saunja ? FIa L Paekna Paekna Mõntu Mõntu n r Amorphognathus a e

i RAKVERE t p superbus a p E Rägavere Rägavere Rägavere K U Amorphognathus Priekule

OANDU n “ventilatus” e

Dicranograptus s DIII Hirmuse Hirmuse Variku

clingani Saku o s

Vasalemma M Plunge KEILA ? D II Blidene Kahula Kahula Kahula Diplograptus U foliaceus Adze 12 C -D Amorphognathus III I L Tatruse Tatruse Tatruse

Sandbian 11 tvaerensis n Nemagraptus gracilis KUKRUSE a 10 Dreimani Dreimani i Pihla Viivikonna c ? CII i 9 v o Pygodus anserinus d Gymnograptus 8 UHAKU U Kõrgekallas Kõrgekallas r Kõrgekallas

O linnarssoni 7 CIc 65 L Väo (upper) Pseudoamplexograpt. Pygodus serra 4 Väo Väo LASNAMÄGI Stirnas Stirnas n distichus 3 CIb a i l i Eoplacognathus

w Pterograptus elegans e Segerstad i l C a r I Kandle

d Rokiskis

r suecicus d a i Nicholsonog. fascicul. D U

M Baldone Eoplacognathus KUNDA Loobu Loobu (lower) Holmograptus lentus pseudoplanus M Pakri BIII Sillaorg (upper) Sakyna Undulograptus Yangtzeplac. crassus L austrodentatus Lenodus variabilis 2 U Sillaorg (lower) Balt. norrlandicus 1 Paroistodus originalisVOLKHOV Kriukai Didymograptus M hirundo Baltoniodus navis BII Toila

Daping. Baltonio. triangularis L Phyllogr. a. elongatus Oepikodus evae BILLINGEN Pseudophyllo. densus B b Prioniodus elegans I Zebre Floian Tetragr. approximatus HUNNEBERG Leetse Leetse Hunnegrap. copiosus Paroistodus proteus BIa

n Adelograp. murrayi r a

e VARANGU i Paltodus deltifer Varangu Varangu c w Adelograptus AIII o o

d hunnebergensis L C. angulat.-C. rotund. a Türisalu m Rhabdinopora flabell. Türisalu e r anglicum-R.f. multith. Cordylodus U T Rhabdinopora flabel- lindstroemi PAKER- liformis norvegicum ORT Kallavere n n Cordylodus intermed. AII a

a Kallavere i Rhabdinopora Kallavere Kallavere r i g Cordylodus proavus L b n flabelliformis sociale m r o Cordylodus andresi a u C F

From: Meila, T., Ainsaar, L., Hints, O. (2014): The Ordovician System in Estonia. In: Bauert, H., Hints, O., Meidla, T. and Männik, P. (eds). 4th Annual Meeting of IGCP 591, Estonia, 10-19 June 2014. Abstracts and Field Guide. University of Tartu, Tartu. p. 118.

Graptolite zonation according to Kaljo & Vingissaar, 1969, Kaljo et al., 1986, Männil, 1976, Resheniya..., 1987, Männil & Meidla, 1994, Nõlvak et al., 2006, conodont zones according to Kaljo et al., 1986, Meidla, 1997 and Männik in Nõlvak et al., 2006. Numbers in the column of the conodont zonation correspond to the conodont subzones as follows: subzones of the Baltoniodus norrlandicus Zone: 1 – Trapezognathus quadrangulum Subzone, 2 – Lenodus antivariabilis Subzone; subzones of the Pygodus serra Zone: 3 – Eoplacognathus foliaceous Subzone, 4 – Eoplacognathus reclinatus Subzone, 5 - Eoplacognathus robustus Subzone, 6 – Eoplacognathus protoamosus Subzone, 7 – Eoplacognathus lindstroemi Subzone; subzones of the Pygodus anserinus Zone: 8 – Sagittodontia kielcensis Subzone, 9 – Amorphognathus inaequalis Subzone; subzones of the Amorphognathus tvaerensis Zone: 10 – Baltoniodus variabilis Subzone, 11 – Baltoniodus gerdae Subzone, 12 – Baltoniodus alobatus Subzone.