NNE Baltimore tracksite (Cretaceous of the United States)

Where: Baltimore County, Maryland (39.4° N, 76.4° W: paleocoordinates 33.4° N, 29.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Patuxent Formation (Potomac Group), Aptian (125.0 - 113.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: delta plain; lithified, sideritic sandstone

• "siderite-cemented sandstone"

Size class: macrofossils

Preservation: mold/impression, trace

Collected by R. Stanford

Collection methods: surface (float), surface (in situ),

Primary reference: R. Stanford, R. E. Weems, and M. G. Lockley. 2004. A new dinosaur ichnotaxon from the Lower Cretaceous Patuxent Formation of Maryland and Virginia. Ichnos 11:251-259 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 69258: authorized by Matthew Carrano, entered by Matthew Carrano on 22.02.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ornithischia -
Hypsiloichnus marylandicus Stanford et al. 2004 ornithopod