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Notocelia uddmanniana
find out more... Notocelia uddmanniana Copyright: Graham Ekins

Essex Field Club
Essex Field Club
registered charity
no 1113963
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EFC Centre at Wat Tyler Country ParkWe are normally open to the public at our centre at Wat Tyler Country Park every Saturday, Sunday and bank holiday 11am-4pm, check. We are also open on Wednesdays 10am-4pm.
Autumn recording Record Grey Squirrel Record Fly Agaric
Record Ivy Bee
Record Wild Teasel
Record Sloe, Blackthorn
Record Garden Spider Record Nigma walckenaeri spider

Geology Site Account

Wix bypass (excavations for), WIX, Tendring District, TM148279, Historical site only

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Historical site only. Excavations for the A120 Wix bypass in 1997.


The London Clay Sea was home to a large number of species but perhaps the most curious was the pearly nautilus, an animal with a spiral chambered shell, the descendants of which now live in the southern Pacific and Indian oceans. A very fine fossil nautilus from the London Clay was donated to Colchester Natural History Museum in 1977 and is understood to have been found during the building of the A120.

There is a likely looking cutting at TM 148 279 (south of Wix Lodge) but the museum have no precise locality. Roger Hewitt, a specialist in London Clay nautiloids, has identified it as Euciphocera regule from the London Clay (Division B1 Isselicrinus horizon) (a fragment of a stem of the crinoid Isselicrinus is present in the aperture of the shell).

A splendid fossil nautilus from the London Clay in Colchester Natural History Museum; found during excavations for the Wix bypass in 1977 . Photo © G. Lucy


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