BOTHREMYDIDAE INDET.

Robert & Weems, E., 2014, Paleogene chelonians from Maryland and Virginia, PaleoBios 31 (1), pp. 1-32 : 2-5

BOTHREMYDIDAE INDET.

( Figs. 3A–C)

Specimen —CMM-V-4776, left epiplastron found by Melville Hurd.

Locality, horizon, and age — Found on the beach at the foot of the bluff west of Loyola Retreat , 1.7 miles north of Popes Creek in southern Charles County, Maryland; the color, density, and the presence of very fine silvery mica adhering to the bone surface all indicate that it came from the adjacent Woodstock Member (Bed A) of the Nanjemoy Formation; early Eocene (late Ypresian; within nannofossil zone NP12) .

Description —CMM-V-4776, epiplastron broadly attached suturally to right epiplastron and hyoplastron, anterior portion of contact with the entoplastron shingled. Two sulcal grooves present on the external (ventral) surface. Anterior sulcal groove trends anteriorly; posterior sulcal groove trends more laterally than anteriorly.