An inhabitant of Bath is known as a Bathonian.

The earliest stegosaur is thought to be Lexovisaurus from the Bathonian of England.

In the geologic timescale the Bathonian is an age or stage of the Middle Jurassic.

It is important for the study of Middle Jurassic rocks of the Bathonian Stage.

In the Tethys domain, the Bathonian contains eight ammonite biozones:

The Bathonian is calcareous in the northeast, whereas in the southeast it keeps its dolomitic character.

S. baroni: Madagascar from the Bathonian.

S. larteti: Western Europe (England and France) from the Bathonian.

It is the last stage of the Middle Jurassic, following the Bathonian and preceding the Oxfordian.

Bajocian-Lower Bathonian sequence.

A global reference profile for the base of the Bathonian (a GSSP) had in 2009 not yet been assigned.

The quarries are one of the most important Bathonian (Middle Jurassic) research sites in the United Kingdom.

Ammonites indicating the Morrisi and Subcontractus zones of the Middle Bathonian are frequent.

In the south east of the basin these deposits are known as Purlawaugh Formation which are aged between Pliensbachian to Bathonian.

These sediments are dated from the Bathonian to Callovian stages of the Middle Jurassic Period, or about 168 to 161 million years ago.

At the same time he created a second species: Streptospondylus cuvieri based on a single damaged vertebra from the Bathonian, found near Chipping Norton.

The base of the Bathonian is at the first appearance of ammonite species Parkinsonia (Gonolkites) convergens in the stratigraphic column.

Paleontologists have dated parts of the formation at about 168 to 161 million years old, between the Bathonian to Callovian stages of the Mid Jurassic.

Two species also placed within Machimosaurus are M. bathonicus and M. rigauxi, from the Bathonian of France.

The end of the sequence in the Lower Bathonian shows regressive tendencies with lignites, breccias, and lacustrine fossils in the Quercy.

Upper Bathonian and lower Callovian ammonites from Chacay Melehue (Argentina), by Horacio Parent.

Laycock Railway Cutting is the best single exposure of the Bathonian 'Fuller's Earth Rock' in South Somerset.

The combination of features of both litho- and chrono-stratigraphical importance make Laycock Railway Cutting a key British Bathonian locality.

Another brachiopod genus, Plectoidothyris, so far reported from the Bajocian of Great Britain only, has been recorded from the Bathonian in this basin.

Last in the Majunga Basin in layers of the Bathonian, the Isalo III Formation.