ammonites
London Clay Basement beds - Watford (Eocene of the United Kingdom)

Where: England, United Kingdom (51.7° N, 0.4° W: paleocoordinates 47.1° N, 2.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: London Clay Formation, Ypresian (55.8 - 48.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marginal marine; unlithified claystone

• Lithology an educated guess - no literature data given, but preservation typical of London Clay "clay" specimens

Size class: mesofossils

Preservation: cast, permineralized, coalified, original carbon, replaced with pyrite

Collection methods: quarrying,

Primary reference: M. E. J. Chandler. 1961. The Lower Tertiary Floras of Southern England. I. Palaeocene Floras. London Clay Flora (Supplement). British Museum (Natural History) London. 1-354 + 34 Plates [B. Tiffney/J. Bean/J. Bean] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 22813: authorized by Bruce Tiffney, entered by Bruce Tiffney on 26.06.2002