Assertion: macroraptorial sperm whale | /r/Synonym | raptorial sperm whales
Facets:
value: commonly
type: DEGREE
Source sentences:
text: Livyatan was part of a fossil stem group of hyper-predatory sperm whales commonly known as macroraptorial sperm whales, or raptorial sperm whales, alongside the extinct whales Brygmophyseter, Acrophyseter, and Zygophyseter.