Compton Road tracksite (Triassic of the United States)

Where: Fairfax County, Virginia (38.8° N, 77.4° W: paleocoordinates 13.2° N, 21.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Poolesville Member (Manassas Sandstone Formation), Norian (228.0 - 208.5 Ma)

• lower part of member, <50 m above base of exposed sequence. Assigned to early Norian here.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Preservation: mold/impression, trace

Collected by P. Kimmel in 1983

Collection methods: quarrying,

Primary reference: R. E. Weems and P. G. Kimmel. 1993. Upper Triassic reptile footprints and a coelacanth fish scale from the Culpeper Basin, Virginia. Proceedings of the Biological Society of Washington 16(2):390-401 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 154230: authorized by Matthew Carrano, entered by Matthew Carrano on 03.02.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

 Thecodontia -
Chirotherium lulli, "Brachychirotherium parvum" = Chirotherium parvum
Chirotherium lulli Bock 1952 archosaur
USNM 412533
"Brachychirotherium parvum" = Chirotherium parvum Hitchcock 1889 archosaur
USNM 412534
 Saurischia -
Plesiornis pilulatus Hitchcock 1858 saurischian
USN 412535