Old Church Formation

The Old Church Formation is a geologic formation in Virginia and possibly Maryland. It preserves fossils dating back to the Oligocene epoch of the Paleogene period. It rarely exposes on land and is under-studied. However, deposits from this period are rare and the Old Church Formation likely contains many scientifically significant taxa. Ward (1985) recommended placing this formation in the Chesapeake Group.

Species
Some of the species known from the Old Church Formation are included below. Further study will likely reveal a more diverse fauna.

Chondrichthyans

 * Otodus angustidens
 * Hemipristis serra
 * Alopias vulpinus
 * Squatina prima?

Cetaceans

 * Xenorophidae sp.
 * Micromysticetus sp.
 * cf. Ankylorhiza sp.
 * cf. Xenorophus sloani
 * aff. Coronodon sp.
 * aff. Cotylocara sp. and Echovenator sp.
 * aff. Eosqualodon sp.

Chelonians

 * Procolpochelys charlestonensis
 * Carolinochelys wilsoni
 * Ashleychelys palmeri

Invertebrates

 * Mercenaria gardnerae
 * Anomia ruffini
 * "Pectin" seabeensis
 * "Pectin" sp.
 * Lucina sp.
 * Plicatula sp.
 * Epitonium sp.
 * Panopea sp.
 * Cyclocardia sp.
 * Astarte sp.
 * Pycnodonte sp.
 * Isognomon sp.
 * "Cardium" sp.
 * Bicorbula idonea
 * Macrocallista sp.
 * Diadora sp.
 * Ecphora sp.
 * Trophon sp.
 * Calypttaea sp.