Ancalecetus

An-kal-e-see-tus.
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Benjamin Gutierrez

Vertebrate Paleontologist

Benjamin Gutierrez is a leading expert on dinosaurs, particularly the mighty theropods. His fieldwork in South America has uncovered new species and provided insights into dinosaur social structures.

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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.

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