TMM 42990, Middle Copperas Creek (Cretaceous of the United States)

Also known as F6 Ranch, Coperas

Where: Kimble County, Texas (30.7° N, 100.1° W: paleocoordinates 28.8° N, 60.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Fort Terrett Member (Edwards Limestone Formation), Middle Albian (109.0 - 105.3 Ma)

• "Dolomitic" member

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; peloidal, shelly/skeletal wackestone and bioturbated, peloidal, shelly/skeletal lime mudstone

• "stromatolitic hard crusts, root marks, mud cracks and birdseye structure indicating tidal flat deposits...Ripple marks, current streaks, fine planar cross beds, and flat mud clasts are scattered throughout member... dolomitic sediments once contained gypsum" Tracks probably made on exposed flats
• pelmicrite/mudstone, "thin, flaggy limestones"; "Calcarenite, foraminifera-ostracode packstone at base grades up to calcarenite, ostracode-miliolid wackestone in middle and grades up to calcilutite, lime mudstone at top; thin bedded flaggy limestone (Y." to 2" flags), rare gastropods, bivalves and foraminifera also present, worm trails and mudcracks common in and near track layers, small calcite filled voids-former evaporite nodules."

Size class: macrofossils

Preservation: mold/impression, trace

Collected by J. Farlow in 1982; reposited in the TMM

Collection methods: surface (in situ),

Primary reference: Anonymous. 1982. Dinosaurs in the fast track. Science '82 3(3):11 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 52139: authorized by Matthew Carrano, entered by Kaitlin Maguire on 27.07.2005, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Foraminifera
 Foraminiferida -
"Foraminiferida indet." = Foraminifera1
"Foraminiferida indet." = Foraminifera1 Eichwald 1830 foram
Tubothalamea
 Miliolida - Miliolidae
Miliolidae indet.2
Miliolidae indet.2 Ehrenberg 1839
Reptilia
 Theropoda -
Theropoda indet.
Theropoda indet. theropod
trackways CHHB-G48, Q94-Q98, E23-HOPE, BLV-A3, 18D-PVW1, 9B-J0F9, C17-RW, N77-MKR32, M73-M66
Gastropoda
  -
Gastropoda indet.1
Gastropoda indet.1 Cuvier 1795 snail
Bivalvia
  -
Bivalvia indet.1
Bivalvia indet.1 Linnaeus 1758 clam
Deuteropoda
  -
Ostracoda indet.2
Ostracoda indet.2 Latreille 1802 ostracod
1Hawthorne 1990; 2Pittman 1989