Sample unit IX (section 5) (Ordovician of Canada)

Where: Ontario, Canada (44.6° N, 75.8° W: paleocoordinates 29.8° S, 67.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: March Formation (Beekmantown Group), Tremadocian (485.4 - 477.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, bioturbated, dolomitic, gray sandstone

• Sandstones deposited in "shallow, offshore marine environment such as a tidal or sub-tidal flat" (Greggs and Bond 1971, p. 1459)
• Bioturbated and homogenized sandstone (Greggs and Bond 1971). More extensively described in Bond and Greggs (1973, CJES 10:1140-1155): "Sandstone-dolomitic, blue-gray, medium- to coarse-grained, thinly bedded, thin, irregular parting, highly bioturbated(sedimentary structures not preserved), rubbly weathering."

Size class: mesofossils

Reposited in the GSC

Collection methods: bulk, chemical,

Primary reference: R. G. Greggs and I. J. Bond. 1971. Conodonts from the March and Oxford Formations in the Brockville Area, Ontario. Canadian Journal of Earth Sciences 8:1455-1471 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 173869: authorized by Melanie Hopkins, entered by Melanie Hopkins on 20.10.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Conodonta
 Protopanderodontida - Protopanderodontidae
Scolopodus quadriplicatus, "Acontiodus staufferi" = Scolopodus staufferi, "Paltodus spurius" = Ventricodus spurius, "Oneotodus variabilis" = Variabiliconus variabilis, Drepanodus conulatus, Drepanodus homocurvatus, Drepanodus simplex
"Acontiodus staufferi" = Scolopodus staufferi Furnish 1938 conodont
"Paltodus spurius" = Ventricodus spurius Ethington and Clark 1964 conodont
"Oneotodus variabilis" = Variabiliconus variabilis Lindström 1955 conodont
Drepanodus simplex Branson and Mehl 1943 conodont