The Upnor Formation is a
geological formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock expo ...
found in the
London Basin
The London Basin is an elongated, roughly triangular sedimentary basin approximately long which underlies London and a large area of south east England, south eastern East Anglia and the adjacent North Sea. The basin formed as a result of compr ...
of southeastern
England
England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe ...
.
[Upnor Formation]
at Fossilworks
Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world.
History
Fossilworks was cre ...
.org It is of
Thanetian
The Thanetian is, in the ICS Geologic timescale, the latest age or uppermost stratigraphic stage of the Paleocene Epoch or Series. It spans the time between . The Thanetian is preceded by the Selandian Age and followed by the Ypresian Age (part ...
(Upper
Paleocene
The Paleocene, ( ) or Palaeocene, is a geological epoch that lasted from about 66 to 56 million years ago (mya). It is the first epoch of the Paleogene Period in the modern Cenozoic Era. The name is a combination of the Ancient Greek ''pal ...
) age. It lies
unconformably on the
Thanet Formation
The Thanet Formation is a geological formation found in the London Basin of southeastern England.[Chalk Group
The Chalk Group (often just called the Chalk) is the lithostratigraphic unit (a certain number of rock strata) which contains the Upper Cretaceous limestone succession in southern and eastern England. The same or similar rock sequences occur ac ...]
.
It is generally overlain either by the
Reading Formation
The Reading Formation is a geologic formation in southern England. It dates to the Paleocene period, and is part of the Lambeth Group. It overlies the London Basin and is below the Harwich Formation. The formation is composed of "a series of l ...
or the
Woolwich Formation
The Woolwich Formation is a geological formation in southeast England. It preserves fossils dating back to the Paleogene period.
See also
* List of fossiliferous stratigraphic units in England
See also
* Lists of fossiliferous stratigrap ...
, but locally in north and east Kent it is overlain unconformably by the
Harwich Formation. It forms the lowermost part of the
Lambeth Group
The Lambeth Group is a stratigraphic group, a set of geological rock strata in the London and Hampshire Basins of southern England. It comprises a complex of vertically and laterally varying gravels, sands, silts and clays deposited between 56-55 ...
. The
type section A stratotype or type section in geology is the physical location or outcrop of a particular reference exposure of a stratigraphic sequence or stratigraphic boundary. If the stratigraphic unit is layered, it is called a stratotype, whereas the stan ...
is at
Lower Upnor
Lower Upnor and Upper Upnor are two small villages in Medway, Kent, England. They are in the parish of Frindsbury Extra on the western bank of the River Medway. Today the two villages are mainly residential and a centre for small craft moored o ...
Pit, north
Kent
Kent is a county in South East England and one of the home counties. It borders Greater London to the north-west, Surrey to the west and East Sussex to the south-west, and Essex to the north across the estuary of the River Thames; it faces ...
. The formation has provided fossils of the
eutheria
Eutheria (; from Greek , 'good, right' and , 'beast'; ) is the clade consisting of all therian mammals that are more closely related to placentals than to marsupials.
Eutherians are distinguished from noneutherians by various phenotypic t ...
n
mammal ''
Arctocyonides arenae''.
[Hooker & Millbank, 2001]
References
Bibliography
* {{cite LSA , last=Hooker , first=J. J. , first2=C. , last2=Millbank , year=2001 , title=A Cernaysian mammal from the Upnor Formation (Late Palaeocene, Herne Bay, UK) and its implications for correlation , journal=
Proceedings of the Geologists' Association , volume=112 , pages=331–338
Geologic formations of England
Paleocene Series of Europe
Paleogene England
Thanetian Stage
Sandstone formations
Shallow marine deposits
Paleontology in England
Geology of London