Pelican Hills, 65-10-21-4 A (Cretaceous of Canada)

Also known as Sample #65-10-21-4 A, about 10 ft above base of gully outcrop on north slope of Pelican Hills (basal beds of Belly River Group)

Where: Alberta, Canada (53.6° N, 113.5° W: paleocoordinates 61.1° N, 76.3° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Belly River Group, Middle Campanian (83.5 - 70.6 Ma)

• Sample is from the basal beds of the Belly River Group about 750 ft above the "First White Speckled Shale," and is middle Campanian in age.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; shale

• black shale about 10 ft above base of gully outcrop on north slope of Pelican Hills

Size class: microfossils

Preservation: original sporopollenin

Collection methods: surface (in situ), chemical, sieve,

• 100-mesh wire screen used (149-micron openings); 30 to 50 grams sample used

Primary reference: J. D. Campbell and B. Untergasser. 1972. Two new megaspore species from the continental Upper Cretaceous (Campanian-Maastrichtian) of the Alberta Plains. Canadian Journal of Botany 50(12):2553-2557 [R. Lupia/T. Naeher/J. Cassara]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 33626: authorized by Rick Lupia, entered by Tiffany Naeher on 04.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• Ariadnaesporites macroglebulosus has been found in 3 out of more than 100 localities and about 250 rock samples. At the southernmost locality, a single megaspore was found 8 mi north of the United States boundary, about 550 ft above the "First White Speckled Shale" and about 1500 ft below the base of the Bearpaw Formation (i.e., early middle Campanian in age), while four megaspores were found at the second locality, about 100 mi north of Edmonton, about 700 ft above the "First Speckled Shale" and about 700 ft below strata equivalent to the base of the Bearpaw Formation (i.e., middle Campanian in age). The remaining specimens (including the holotype and syntype) were recovered from an isolated outcrop on the north face of the Pelican Hills about 180 mi north of Edmonton, about 750 ft above the "First White Speckled Shale" (also believed to be middle Campanian in age).
Show authors, comments, and common names
Polypodiopsida
 Salviniales - Polypodiidae
Ariadnaesporites macroglebulosus n. sp.