In the geologic timescale, the Bathonian is the age of the Middle Jurassic epoch of the Jurassic period of the Mesozoic era of the Phanerozoic eon that is comprehended between 167 million 700 thousand and 164 million 700 thousand years ago, approximatedly. The Bathonian age succeeds the Bajocian age and precedes the Callovian age, all in the same epoch. The geologic time scale is used by geologists and other scientists to describe the timing and relationships between events that have occurred during the history of the Earth. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... The Middle Jurassic, called the Dogger in the European system of classification, is the second epoch of the Jurassic period. ... A division of geologic time less than a period and greater than an age. ... The Jurassic period is a major unit of the geologic timescale that extends from about 200 Ma (million years ago) at the end of the Triassic to 146 Ma at the beginning of the Cretaceous. ... In geology, a period or age is a time span of many millions of years that are assumed to have had similar characteristics. ... The Mesozoic is one of three geologic eras of the Phanerozoic eon. ... The table and timeline of geologic periods presented here is in accordance with the dates and nomenclature proposed by the International Commission on Stratigraphy. ... The Phanerozoic (occasionally Phaenerozoic) Eon is the period of geologic time during which abundant animal life has existed. ... In general usage, an eon (sometimes spelled aeon) is a very long period of time. ... In the geologic timescale, the Bajocian is the age of the Middle Jurassic epoch of the Jurassic period of the Mesozoic era of the Fanerozoic eon that is comprehended between 171 million 600 thousand and 167 million 700 thousand years ago, approximatedly. ... The Callovian is a stage on the geologic time scale occuring from 164. ...

The stage takes its name from Bath, a spa town built on Jurassic limestone, which is, of course, what gives it its healing powers. The city itself is largely built of Bath Stone, a bright, white oölitic limestone that is quarried nearby. For other uses, see Bath (disambiguation). ... A spa town is a town frequented, in times past, for health reasons, to take the waters. The name derives from the Belgian town Spa, and in continental Europe, a spa was known as a ville deau (town of water). ... Limey shale overlaid by limestone. ... Bath Stone is an Oolitic Limestone comprising granular fragments of calcium carbonate. ...