The Cambrian is a major division of the geologic timescale that begins about 541.0 ± 1.0 Ma. Cambrian continents are thought to have resulted from the breakup of a Neoproterozoic supercontinent called Pannotia. The waters of the Cambrian period appear to have been widespread and shallow. Continental drift rates may have been anomalously high. Laurentia, Baltica and Siberia remained independent continents following the break-up of the supercontinent of Pannotia. Gondwana started to drift toward the South Pole. Panthalassa covered most of the southern hemisphere, and minor oceans included the Proto-Tethys Ocean, Iapetus Ocean and Khanty Ocean. COUNT 5
QSN1 At what rough time did the Cambrian era start? ANS1 541.0 ± 1.0 Ma. QSN2 What were the continents of the Cambrian area believed to have formerly been a part of? ANS2 Pannotia QSN3 What continent moved to the southern-most part of the earth in the Cambrian era? ANS3 Gondwana QSN4 What continent ranged over the majority of the southern hemisphere of earth in the Cambrian? ANS4 Panthalassa QSN5 Baltica and Sibera are examples of what thing, during the Cambrian era? ANS5 independent continents