A mixture of large, encrusted pecten valves, encrusted, rounded cobbles, and gravel made up of well-rounded lithic pebbles many of which are also encrusted with calcareous bryozoa.
Cite the IMLGS database as: Curators of Marine and Lacustrine Geological Samples Consortium. The Index to Marine and Lacustrine Geological Samples (IMLGS). National Geophysical Data Center, NOAA. doi:10.7289/V5H41PB8 [date of access].