Mud mound at Putilovo Quarry, section 10, sample 1, Volkhov Stage (Ordovician of Russian Federation)

Also known as Reef 2580

Where: Russian Federation (59.9° N, 31.4° E: paleocoordinates 37.8° S, 0.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Baltoniodus triangularis conodont zone, Dikari Member (Volkhov Formation), Volkhov (471.1 - 469.2 Ma)

• Baltoniodus triangularis conodont zone [JA: reassigned to the Floian because the triangularis zone is latest Floian]

• bed-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified claystone

• microbial mud mound
• the lower of two thick clay lenses; violet-grey clay with numerous small glauconite grains and brachiopod and ostracode valves;

Size classes: macrofossils, microfossils

Primary reference: T. Tolmacheva, P. Fedorov, and E. Egerquist. 2003. Conodonts and brachiopods from the Volkhov Stage (Lower Ordovician) microbial mud mound at Putilovo Quarry, north-western Russia. Bulletin of the Geological Society of Denmark 50(1):63-74 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 61779: authorized by Wolfgang Kiessling, entered by Uta Merkel on 30.06.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Conodonta
 Ozarkodinida -
 Prioniodontida - Balognathidae
 Prioniodontida - Oistodontidae
Oistodus lanceolatus Pander 1856 conodont
 Protopanderodontida - Protopanderodontidae
"Scolopodus rex" = Scolopodus striatus Pander 1856 conodont
Protopanderodus rectus Lindstrom 1955 conodont
 Protopanderodontida - Cornuodontidae
Cornuodus longibasis Lindström 1955 conodont
 Protopanderodontida - Drepanoistodontidae
Drepanoistodus forceps Lindström 1955 conodont
Drepanoistodus cf. basiovalis Sregeeva 1963 conodont
Rhynchonellata
 Orthida - Archaeorthidae
 Orthida - Productorthidae
Panderina sp. Schuchert and Cooper 1931
 Orthida - Ranorthidae
 Orthida - Paurorthidae
Paurorthis parva Pander 1830