Akidolestes

Ah-ke-do-les-teez.
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Cassidy Wood

Paleoentomologist

Cassidy Wood uncovers the tiny yet significant world of prehistoric insects. Her research on amber-preserved specimens has revealed intricate details about ancient ecosystems.

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Name

Akidolestes ‭(P‬ointed thief‭)‬.

Phonetic

Ah-ke-do-les-teez.

Named By

G.‭ ‬Li‭ & ‬Z.-X.‭ ‬Luo‭ ‬-‭ ‬2006.

Classification

Chordata,‭ ‬Mammalia,‭ ‬Symmetrodonta,‭ ‬Spalacotheriidae.

Diet

Insectivore.

Species

A.‭ ‬cifellii‭

Size

About‭ ‬10‭ ‬centimeteres long for the body,‭ ‬2‭ ‬centimetres for the skull.

Known locations

China,‭ ‬Liaoning Province‭ ‬-‭ ‬Yixian Formation.

Time Period

Barremian of the Cretaceous.

Fossil representation

Almost complete individual.

In Depth

       Akidolestes displays a number of‭ ‬features which are seen in monotreme mammals,‭ ‬including a similar pubis and the presence of cervical ribs.‭ ‬However,‭ ‬other observations of the holotype specimen mean that there is no doubt that Akidolestes was a spalacotheriid mammal.‭ ‬The monotreme-like features are probably convergent features or traits from an ancestral form shared with monotremes.

       The genus name Akidolestes means‭ ‘‬pointed thief‭’ ‬and this is a reference to the long snout that Akidolestes is known to have had.‭ ‬The type species name is in honour of Richard Cifelli and in recognition to his contributions in the field of mammal palaeontology.‭

Further Reading

-‭ ‬A Cretaceous symmetrodont therian with some monotreme-like postcranial features,‭ ‬G.‭ ‬Li‭ & ‬Z.-X.‭ ‬Luo‭ ‬-‭ ‬2006. – Postcranial Skeleton of the Cretaceous Mammal Akidolestes cifellii and Its Locomotor Adaptations. – Journal of Mammalian Evolution. 20 (3): 159–189. – Meng Chen & Zhe-Xi Luo – 2012.

SPECIES SPOTLIGHT