Latchford property, Muirkurk (Cretaceous of the United States)

Also known as Bladensburg, Arundel

Where: Prince George's County, Maryland (39.1° N, 76.9° W: paleocoordinates 33.0° N, 29.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Arundel Clay Formation (Potomac Group), Early/Lower Aptian (125.5 - 122.5 Ma)

• now considered early-mid Aptian

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; ferruginous siliciclastic sediments

Size class: mesofossils

Collected by P. Tyson in 1858

Collection methods: quarrying,

Primary reference: C. Johnston. 1859. Note upon odontology. The American Journal of Dental Science, new series 9:337-343 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52676: authorized by Matthew Carrano, entered by Matthew Carrano on 16.08.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Saurischia -
Astrodon johnstoni n. sp. Leidy 1865 sauropod
teeth