MNA 1048 (Carboniferous to of the United States)

Also known as The Dome

Where: Mojave County, Arizona (35.3° N, 112.9° W: paleocoordinates 0.6° S, 45.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Surprise Canyon Formation, Late/Upper Mississippian to Late/Upper Mississippian (326.4 - 314.6 Ma)

• "section 1, unit 3 of measured section, 23 above base" of formation "in lens"

•"Upper Mississippian-Lower Pennsylvanian"

• bed-level stratigraphic resolution

Environment/lithology: "channel"; lithified siltstone

• "channels" in "two major streams"
• "a basal fluvial detrital unit in a medium- to fine-grained siltstone that is interbedded with red-brown to dark-gray sandstone and overlies pebble and cobble conglomerates"

Size class: macrofossils

Preservation: adpression

Collected by S. Beus

• Museum of Northern Arizona collection

Primary reference: W. D. Tidwell, J. R. Jennings, and S. S. Beus. 1992. A Carboniferous flora from the Surprise Canyon Formation in the Grand Canyon, Arizona. Journal of Paleontology 66(6):1013-1021 [J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 92395: authorized by John Alroy, entered by John Alroy on 09.11.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

 Lepidodendrales - Lepidodendraceae