USGS Loc. 25299 - Camp Conoy [Boston Cliffs Mbr, Choptank Fm] (Miocene of the United States)

Where: Calvert County, Maryland (38.4° N, 76.4° W: paleocoordinates 38.6° N, 73.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Boston Cliffs Member (Choptank Formation), Serravallian (13.8 - 11.6 Ma)

• LITHOSTRATIGRAPHY: From the Boston Cliffs Mbr of the Choptank Fm, for which lithostratigraphic relations are not discussed. AGE: Middle and Upper Miocene (Serravallian). STRATIGRAPHIC POSITION: Zone 19 of Shattock, 1904, 2m above shoreline.

• member-level stratigraphic resolution

Environment/lithology: offshore; unlithified, medium-grained, shelly/skeletal sandstone

• Open shelf conditions created channel deposits of clean, medium-size sand, and allowed for abundant growth of molluscan fauna and subsequent cirriped development.
• LITHOLOGY: Fossiliferous medium sand. LITHIFICATION: Unconsolidated.

Size classes: macrofossils, mesofossils

Reposited in the USNM

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

Primary reference: V. A. Zullo. 1992. Revision of the balanid barnacle genus Concavus Newman, 1982, with the description of a new subfamily, two new genera, and eight new species. The Paleontological Society Memoir 27:1-46 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 160229: authorized by Austin Hendy, entered by Austin Hendy on 16.08.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to Cirripedia.
Show authors, comments, and common names
Thecostraca
 Balanomorpha - Balanidae
Chesaconcavus rossi
Chesaconcavus rossi Zullo 1992 barnacle