Also known as "London Clay" (Beds 4-6)
Where: England, United Kingdom (50.7° N, 1.6° W: paleocoordinates 49.1° N, 5.5° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Middle Member (Barton Beds Formation), Late/Upper Eocene (37.2 - 33.9 Ma)
• beds 4-6 (numbered from bottom to top). Prestwich's stratigraphy is a bit screwy. No one else has recognized the London Clay in this area. This bed is probably part of the Barton Beds (Bosma, 1974). Gardner et al. are the first I've found who call these Barton Beds.
• group of beds-level stratigraphic resolution
Environment/lithology: marine; sandy claystone and pebbly, brown, gray, green, red, sandy, calcareous, carbonaceous claystone
Size classes: macrofossils, mesofossils
Collection methods: Prestwich claims that Bowerbank's Cancer Leachii goes with this bed, but it doesn't seem to fit with the strat columns in both papers. Bowerbank puts this bed at the top of the London Clay, while Prestwich puts it at the bottom.
Primary reference: J. S. Bowerbank. 1839. On the London and Plastic Clay Formations of the Isle of Wight. Transactions of the Geological Society of London, series 2 6:169-172 [J. Alroy/E. Leckey/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 39696: authorized by John Alroy, entered by Erin Leckey on 03.06.2004, edited by Austin Hendy
Creative Commons license: CC BY (attribution)