Ancalecetus

An-kal-e-see-tus.
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Claire Morris

Marine Paleontologist

Claire Morris has dedicated her career to exploring the depths of prehistoric oceans. Her fascination with ancient marine life has led her to discover significant fossils that illuminate the evolution of early sea creatures.

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Name

Ancalecetus ‭(‬bent arm whale‭)‬.

Phonetic

An-kal-e-see-tus.

Named By

P.‭ ‬D.‭ ‬Gingerich‭ & ‬M.‭ ‬D.‭ ‬Uhen‭ ‬-‭ ‬1996.

Classification

Chordata,‭ ‬Mammalia,‭ ‬Cetacea,‭ ‬Archaeoceti,‭ ‬Basilosauridae,‭ ‬Dorudontinae.

Diet

Carnivore/Piscivore.

Species

A.‭ ‬simonsi‭

Size

Roughly estimated to be around‭ ‬5‭ ‬meters long.

Known locations

Egypt‭ ‬-‭ ‬Birket Qarun Formation.

Time Period

Priabonian of the Eocene.

Fossil representation

Partial remains of the skull,‭ ‬mandible and post cranial skeleton.

In Depth

       A relative of other primitive whales such as Dorudon and Zygorhiza,‭ ‬Ancalecetus would have been a toothed predatory whale that hunted other marine organisms for food.‭ ‬In fact,‭ ‬Ancalecetus is seen to be very similar to Dorudon atrox with the exception of the fore limbs of Ancalecetus being much smaller and closer to the body.‭ ‬This means that Ancalecetus would have had a reduced steering ability when compared to Dorudon,‭ ‬so it may have been a more specialised,‭ ‬perhaps slower predator.

Further Reading

-‭ ‬Ancalecetus simonsi,‭ ‬a new dorudontine archaeocete‭ (‬Mammalia,‭ ‬Cetacea‭) ‬from the early late Eocene of Wadi Hitan,‭ ‬Egypt,‭ ‬P.‭ ‬D.‭ ‬Gingerich‭ & ‬M.‭ ‬D.‭ ‬Uhen‭ ‬-‭ ‬1996.

SPECIES SPOTLIGHT