Pisces Point (Cretaceous of Canada)

Where: Alberta, Canada (52.0° N, 112.9° W: paleocoordinates 59.7° N, 84.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Scollard Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• about 1–2 m above the base of the formation, just above the Kneehills Tuff in the Battle Formation, dated to 66.5-67Ma from K/Ar by Eberth 1997.

• bed-level stratigraphic resolution

Environment/lithology: "channel"; sandstone and mudstone

• The Pisces Point locality is preserved in

•a paleochannel composed of alternating sandstone and mudstone

•layers. These alternating layers are interpreted as the result of

•periodic alternation between active channel and stagnant waters

•in the channel (pers. comm., Dave Eberth and Dennis Braman,

•June 2012). The locality may have been a cut-off ox bow in which

•flow was seasonal and ponded water was stagnant (pers. comm.,

•Dave Eberth and Dennis Braman, June 2012). Articulated fish

•are present in both the sandstone and mudstone layers,

• alternating sandstone and mudstone

Size classes: macrofossils, mesofossils

Preservation: replaced with hematite

Collected by Showalter, TMP ; reposited in the TMP

Collection methods: quarrying, sieve,

Primary reference: A. M. Murray, M. G. Newbrey, A. G. Neuman and D. B. Brinkman. 2016. New articulated osteoglossomorph from Late Cretaceous freshwater deposits (Maastrichtian, Scollard Formation) of Alberta, Canada. Journal of Vertebrate Paleontology 1-14 [P. Holroyd/P. Holroyd/P. Holroyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 190346: authorized by Patricia Holroyd, entered by Patricia Holroyd on 05.12.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

• aquatic macrophytes reported present in mudstones
 Teleostei -
 Osteoglossiformes -
Wilsonichthys aridinsulensis n. gen. n. sp. Murray et al. 2016
 Holostei -
Semionotiformes indet. Arambourg and Bertin 1958