Callovian is a coordinate term of oxfordian.
As proper nouns the difference between callovian and oxfordian
is that callovian is (geology|paleontology) a subdivision of the jurassic period while oxfordian is (geology) the age from 1635±10 ma to 1573±10 ma or the stage of rocks (chiefly coral-derived limestones) deposited during it.
As a noun oxfordian is
a native or resident of oxford.
As an adjective oxfordian is
of or pertaining to oxford or its residents.
oxfordian
English
(Oxfordian theory of Shakespeare authorship)
Noun
(
en noun)
A native or resident of Oxford.
One who believes that (Edward de Vere), 17th Earl of Oxford, wrote the plays traditionally attributed to (William Shakespeare).
Proper noun
(
en proper noun)
(geology) The age from 163.5±1.0 Ma to 157.3±1.0 Ma or the stage of rocks (chiefly coral-derived limestones) deposited during it.
Synonyms
* Corallian
Hypernyms
* Phanerozoic - eon; Mesozoic - era; Jurassic - period; Upper Jurassic - epoch
Coordinate terms
* Callovian (Middle Jurassic); Oxfordian , Kimmeridgean, Tithonian (Upper Jurassic) - ages or stages
Adjective
(
en adjective)
Of or pertaining to Oxford or its residents.
Relating to or denoting the theory that Edward de Vere (1550–1604), Earl of Oxford, wrote the plays attributed to William Shakespeare.
Relating to the Oxfordian age or stage.
Derived terms
* Oxfordianism
* Oxfordian Theory
References
* http://oxforddictionaries.com/definition/Oxfordian