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meaning: "Willunga whale"
Named By: Pledge in 2005
Time Period: Oligocene
Location: Australia, South Australia, Willunga
Size: Unknown due to lack of fossil material
Diet: Uncertain, but likely to have been predatory
Fossil(s): Partial skull
Classification: | Chordata | Mammalia | Cetacea | Aetiocetidae |

Willungacetus is an extinct genus of primitive baleen whale of the family Aetiocetidae known from the Oligocene of Australia (at Port Willunga, 35.3degS 138.5degE / -35.3; 138.5, paleocoordinates 52.9degS 133.7degE / -52.9; 133.7). It is the oldest-known whale from Australia, and the only aetiocetid whale currently known from the Southern Hemisphere.

Neville S. Pledge first visited the type locality in 1983 and collected two boulders. These two rocks, however, were forgotten until 2001 when a partial vertebra were discovered within. The site was subsequently revisited and another specimen, a partial cranium, was discovered. Pledge referred a radius, collected from the same cliff in 1994, to his newly named species.

Pledge provisionally assigned Willungacetus to Aetiocetidae, but this assignment still needs to be confirmed.

Read more about Willungacetus at Wikipedia
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