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Garnett Quarry (Carboniferous of the United States)

Also known as Garnett Vertebrate Fauna, Charles Hardesty farm

Where: Anderson County, Kansas (38.4° N, 95.3° W: paleocoordinates 3.5° S, 28.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Rock Lake Shale Member (Stanton Formation), Missourian (305.9 - 303.4 Ma)

• "Rock Lake Member, Stanton Formation, Lansing Group, Missourian Series, Upper Pennsylvanian" (Reisz & Berman, 1996)

•all vertebrate remains seem to come exclusively from the basal part of the Rock Lake Shale (see Reisz et al., 1982)

• group of beds-level stratigraphic resolution

Environment/lithology: fine channel fill; brown, calcareous, carbonaceous mudstone

• "The Rock Lake Shale is a rather thin but otherwise typical ’outside’ shale of a ’Kansas Megacyclothem’ sequence formed as a change from regressive to transgressive conditions occurred [...] The site is located along the western edge of what was, during the Late Pennsylvanian, a shallow, forested stream valley or channel that was eroded into a limestone coastal plain during the latter stages of a major eustatic fall in sea level. As the succeeding rise in sea level occurred, the valley was gradually flooded by estuarine waters" (Reisz et al., 1982).

•Sequence stratigraphy is interpreted from the description given by Reisz et al. (1982). The surface of the underlying limestone is the sequence boundary merged with the transgressive surface and the Lake Rock Shale is the basalmost deposit of the transgressive systems tract.

• "dark greyishbrown, moderately well bedded, very carbonaceous, calcareous mudstone" (Reisz et al., 1982)

Size class: macrofossils

Collected by F. E. Peabody, R. Camp, R. L. Carroll, R. R. Reisz, M. J. Heaton, B. R. Pynn, G. MacDonald in 1953-1956, 1965, 1980, 1981; reposited in the ROM

Collection methods: bulk, mechanical

Primary reference: R. R. Reisz, M. J. Heaton, and B. R. Pynn. 1982. Vertebrate Fauna of Late Pennsylvanian Rock Lake Shale near Garnett, Kansas: Pelycosauria. Journal of Paleontology 56(3):741-750 [J. Mueller/T. Liebrecht] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 80784: authorized by Johannes Mueller, entered by Jana Dummasch on 08.05.2008, edited by Torsten Liebrecht, Marcus Walther and Emma Dunne

Creative Commons license: CC BY (attribution)