Definition that contains brian
- leon a city in northwestern Spain at the foot of the Cantabrian Mountains
- oviedo a city in northwestern Spain near the Cantabrian Mountains
- archean of or relating to the earliest known rocks formed during the Precambrian Eon
- proterozoic formed in the later of two divisions of the Precambrian era
- archeozoic of or belonging to earlier of two divisions of the Precambrian era
- sabellian an extinct Osco-Umbrian language of ancient Italy that survives only in a few inscriptions
- archaean of or relating to the earliest known rocks formed during the Precambrian Eon
- craton the part of a continent that is stable and forms the central mass of the continent; typically Precambrian
- conodont small (2 inches long) extinct eellike fish with a finned tail and a notochord and having cone-shaped teeth containing cellular bone; late Cambrian to late Triassic; possible predecessor of the cyclostomes
- archaeozoic of or belonging to earlier of two divisions of the Precambrian era