Where: England, United Kingdom (50.7° N, 1.6° W: paleocoordinates 49.2° N, 5.4° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Headon Beds Formation, Late/Upper Eocene (37.2 - 33.9 Ma)

• the authors say that this fossil is "...from the sandy Headon Beds immediately beneath a hard sandstone seam containing Viviparus....The horizon at which this deposit occurred appears to be higher than the beds of the Colwell Bay side of Headon Hill cliff."

• bed-level stratigraphic resolution

Environment/lithology: marine; sandstone

Size class: macrofossils

Collection methods: surface (in situ),

Primary reference: F. R. Woodward. 1965. Monograph of the British lower Tertiary Unionidae, with descriptions of three new species. Journal of Conchology 25:316-330 [J. Alroy/E. Leckey/E. Leckey]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 41502: authorized by John Alroy, entered by Erin Leckey on 15.07.2004

Creative Commons license: CC BY (attribution)