Gorny Altai, Marcheta-1 Section, Marcheta Fm. (Ordovician of Russian Federation)

Where: Siberia, Russian Federation (51.2° N, 84.7° E: paleocoordinates 0.1° N, 26.5° E)

• coordinate estimated from map

When: proteus graptolite zone, Marcheta Formation, Tremadocian (485.4 - 477.7 Ma)

Environment/lithology: open shallow subtidal; gray, green mudstone and fine-grained, gray sandstone

• and calcareous mudstone

Size classes: macrofossils, mesofossils

Primary reference: N. V. Sennikov, O.T. Obut, E. V. Lykova, A. V. Timokhin, T. V. Gonta, R. A. Khabibulina, T. A. Shcherbanenko and T. P. Kipriyanova. 2019. Ordovician Sedimentary Basin and Paleobiotas of the Gorny Altai. 1-183 [B. Kröger/B. Kröger]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 205632: authorized by Björn Kröger, entered by Björn Kröger on 17.10.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Conodonta
 Prioniodontida - Acodontidae
"Acontiodus sp." = Acodus
"Acontiodus sp." = Acodus Pander 1856 conodont
 Prioniodontida -
Paracordylodus gracilis
Paracordylodus gracilis Lindström 1955 conodont
 Prioniodontida - Oistodontidae
Oistodus gracilis, Oistodus sp.
Oistodus sp. Pander 1856 conodont
 Protopanderodontida - Oneotodontidae
Oneotodus sp.
Oneotodus sp. Lindström 1955 conodont
 Protopanderodontida - Protopanderodontidae
"Acontiodus reclinatus" = Drepanodus reclinatus
"Acontiodus reclinatus" = Drepanodus reclinatus Lindström 1955 conodont
 Protopanderodontida - Drepanoistodontidae
Paroistodus cf. proteus
Paroistodus cf. proteus Lindström 1955 conodont
 Protopanderodontida - Cornuodontidae
Cornuodus longibasis
Cornuodus longibasis Lindström 1955 conodont