Ghost River Locality (Devonian of Canada)

Also known as Calgary

Where: Alberta, Canada (51.3° N, 115.0° W: paleocoordinates 15.7° S, 44.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Yahatinda Formation, Early/Lower Frasnian (383.7 - 382.4 Ma)

• Scheckler (1978, p. 3138): "formation is overlain by the Cairn Formation of lower Frasnian age."


Size class: macrofossils

Preservation: adpression, permineralized, original carbon, replaced with pyrite, replaced with hematite, replaced with limonite

Collection methods: quarrying, chemical, mechanical,

Primary reference: S. E. Scheckler. 1978. Ontogeny of Progymnosperms. II. Shoots of Upper Devonian Archaeopteridales. Canadian Journal of Botany 56(24):3136-3170 [W. Stein/J. Kao/J. Kao]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 21241: authorized by Bill Stein, entered by Jenny Kao on 21.06.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Archaeopteridales - Archaeopteridaceae
Archaeopteris macilenta
branch, transverse section, sympodia
Archaeopteris sp. Dawson 1871
sympodia, ultimate branch
 Cordaitales -