Categories: Geology stubs | Jurassic Jump to: navigation, search 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. ... Jump to: navigation, search Lower Jurassic (also known as Lias) is the earliest of three epochs of Jurassic period. ... Jump to: navigation, search The Middle Jurassic, called the Dogger in the European system of classification, is the second epoch of the Jurassic period. ... Jump to: navigation, search Upper Jurassic (also known as Malm) was an epoch of the Jurassic geologic period. ... Jump to: navigation, search The Hettangian is the first stage of the Early Jurassic Epoch. ... Jump to: navigation, search The Aalenian is a subdivision of the Middle Jurassic period of the geologic timescale that extends from about 175. ... Jump to: navigation, search 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. ... Jump to: navigation, search The Kimmeridgian is a stage of the Late Jurassic Epoch. ... Jump to: navigation, search The Toarcian Stage was the last faunal stage of the Early Jurassic period. ... Jump to: navigation, search In the geologic timescale, the Bathonian is the age of the Middle Jurassic epoch of the Jurassic period of the Mesozoic era of the Fanerozoic eon that is comprehended between 167 million 700 thousand and 164 million 700 thousand years ago, approximatedly. ... Jump to: navigation, search The Callovian is a stage on the geologic time scale occuring from 164. ... Jump to: navigation, search The Tithonian (141-135 MYA) is the most recent faunal stage of the Jurassic era. ...