Where: England, United Kingdom (50.7° N, 1.7° W: paleocoordinates 49.2° N, 5.6° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Barton Beds Formation, Late/Upper Eocene (37.2 - 33.9 Ma)
• bed A1: this bed is 21 feet (either in thickness or height above the base, tough to tell which, probably thickness)
• bed-level stratigraphic resolution
Environment/lithology: marine; sandy claystone
Size class: macrofossils
Preservation: replaced with pyrite
Collection methods: In the introduction, Burton says that he is reporting fauna "the horizons of which are known to the author", and states that he has collected 480 specimens. It is also clear that he is pulling from other sources, some published (in difficult to obtain British journals), some not. It's difficult to tell which are his and which aren't. This is not a definitive source for this collection, but I think it's a reasonable place to start.
Primary reference: E. S.t. J. Burton. 1933. Faunal Horizons of the Barton Beds in Hampshire. Proceedings of the Geologist's Association 44:131-167 [J. Alroy/E. Leckey/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 42634: authorized by John Alroy, entered by Erin Leckey on 03.08.2004, edited by John Alroy
Creative Commons license: CC BY (attribution)
Taxonomic list
Foraminifera | |
unclassified | |
Plantae indet. Haeckel 1866 | |
Pinopsida | |
Chondrichthyes | |
"Odontaspis macrota" = Otodus macrotus
"Odontaspis macrota" = Otodus macrotus Agassiz 1838 mackerel shark | |
Reptilia | |
? Argillochelys sp. Lydekker 1889 turtle | |
Crocodylomorpha indet. crocodilian | |
Actinopteri | |
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