Oxford Clay

E52676

Oxford Clay is a Jurassic-age marine sedimentary rock formation in England renowned for its exceptionally well-preserved fossils, especially marine reptiles and invertebrates.


Statements (49)
Predicate Object
instanceOf geologic formation
sedimentary rock formation
stratigraphic unit
color dark grey
contains calcareous concretions
organic-rich layers
septarian nodules
country England
United Kingdom
depositionalSetting epicontinental sea
economicUse brickmaking
ceramics
environmentOfDeposition marine
extendsTo Cambridgeshire
Lincolnshire
Oxfordshire
Wiltshire NERFINISHED
Yorkshire
fossilContent ammonites
belemnites
bivalves
gastropods
ichthyosaurs
invertebrate remains
marine crocodiles
plesiosaurs
pliosaurs
vertebrate remains
geologicAge Callovian
Middle Jurassic
geologicPeriod Jurassic
geologicProvince East Midlands Shelf
Wessex Basin
knownFor exceptional fossil preservation
invertebrate fossils
marine reptile fossils
lithology clay
mudstone
shale
namedAfter Oxford
overlies Kellaways Formation
primaryComposition clay minerals
silt
region eastern England
southern England
stratigraphicUnitOf Jurassic System
underlies Corallian Group
Cornbrash Formation
weatheringColor light grey

Referenced by (1)
Subject (surface form when different) Predicate
Jurassic Period
hasNotableFossilSite

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