The Boreal Sea was a
Mesozoic-era seaway that lay along the northern border of
Laurasia
Laurasia () was the more northern of two large landmasses that formed part of the Pangaea supercontinent from around ( Mya), the other being Gondwana. It separated from Gondwana (beginning in the late Triassic period) during the breakup of Pan ...
.
World distribution of middle Jurassic ammonites (Upper Aalenian to Middle Bathonian): relationships between biodiversity and palaeogeography - Moyne et al. 175 (5): 513 - Bull...
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References
Historical oceans
Prehistory of the Arctic
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