Tithonian vs Oxfordian - What's the difference?

tithonian | oxfordian | coordinate terms |

Oxfordian is a coordinate term of tithonian.

As proper nouns the difference between tithonian and oxfordian

is that tithonian is an age or stage, from 152.1±0.9 MY to ~145.0 Ma while Oxfordian is 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.

As a noun Oxfordian is

a native or resident of Oxford.

As an adjective Oxfordian is

of or pertaining to Oxford or its residents.