Callovian
![Matmor Formation (Callovian, Peltoceras athleta Zone) in Makhtesh Gadol, Israel.](/Images/godic/202501/02/MatmorFormation20095957.JPG")
![Agilisaurus](/Images/godic/202501/02/Agilisaurus25957.jpg")
![Peloneustes](/Images/godic/202501/02/Peloneustes_BW5957.jpg")
![Simolestes vorax](/Images/godic/202501/02/Simolestes1DB5957.jpg")
In the geologic timescale, the Callovian is an age or stage in the Middle Jurassic, lasting between 166.1 ± 4.0 Ma (million years ago) and 163.5 ± 4.0 Ma. It is the last stage of the Middle Jurassic, following the Bathonian and preceding the Oxfordian.