Doswell sewer plant, bed 7 (USNM) (Triassic of the United States)

Where: Hanover County, Virginia (37.8° N, 77.4° W: paleocoordinates 2.8° N, 15.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Falling Creek Formation (Doswell Group), Carnian (237.0 - 228.0 Ma)

• late middle Carnian (Weems 1980); Sandfordian LVF (Lucas & Huber 2003); Carnian (Dilkes & Sues 2009)

• bed-level stratigraphic resolution

Environment/lithology: "channel"; fine-grained, medium, gray, argillaceous, calcareous sandstone

• "Sandstone, medium gray, medium to fine grained, poorly sorted, calcareous, massive; faintly laminated; rare 2-3 mm clayballs or coprolites"

Size classes: macrofossils, mesofossils

Collected by R. Weems in 1974; reposited in the USNM

Primary reference: R. E. Weems. 1980. An unusual newly discovered archosaur from the Upper Triassic of Virginia, U.S.A. Transactions of the American Philosophical Society, New Series 70(7):1-53 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 68957: authorized by Matthew Carrano, entered by Matthew Carrano on 14.02.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Gnathostomata
  -
Osteichthyes indet. bony fish
fish scales
Reptilia
 Loricata - Rauisuchidae
 Phytosauria -
"Parasuchia indet." = Phytosauria
"Parasuchia indet." = Phytosauria Jaeger 1828 phytosaur
teeth
 Diapsida - Doswelliidae
Doswellia kaltenbachi Weems 1980 archosauromorph