Notharctus

No-fark-tuss.
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John Stewart

Paleoecologist

John Stewart is a distinguished paleoecologist whose work has significantly advanced our understanding of prehistoric ecosystems. With over two decades dedicated to unearthing fossils across Asia and Africa

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Name

Notharctus.

Phonetic

No-fark-tuss.

Named By

Joesph Leidy‭ ‬-‭ ‬1870.

Classification

Chordata,‭ ‬Mammalia,‭ ‬Primates,‭ ‬Notharctidae,‭ ‬Notharctinae.

Diet

Pirmarily a herbivore,‭ ‬insects may have also been included in its diet.

Species

N.‭ ‬tenebrosus

Size

Around‭ ‬40-45‭ ‬centimetres long.

Known locations

USA,‭ ‬including Colorado,‭ ‬Nevado,‭ ‬New Mexico,‭ ‬Texas,‭ ‬Utah and Wyoming.

Time Period

Ypresian to Lutetian of the Eocene.

Fossil representation

Around at least a hundred individuals.

In Depth

       Notharctus is easily the best known of the‭ ‬arboreal primates of the Eocene,‭ ‬a popularity thanks largely to the number of fossil specimens for this genus as well as its frequent inclusion in books about prehistoric animals.‭ ‬Notharctus was a small lightly built and flexible primate that is often described as lemur-like.‭ ‬The long limbs and grasping hands of Notharctus meant that it could move through the tree canopy with the utmost ease.‭ ‬The first of its kind to be identified and named,‭ ‬Notharctus is the type genus for the Notharctidae primates as well as the Notharctinae sub group.

Further Reading

– On the structure and relations of Notharctus,‭ ‬an American Eocene primate.‭ ‬Memoirs of the AMNH‭ ; ‬new ser.,‭ ‬v.‭ ‬3,‭ ‬pt.‭ ‬2,‭ ‬William Gregory King – 1920. – Phylogeny of middle Eocene Adapidae (Mammalia, Primates) in North America: Smilodectes and Notharctus. – Journal of Paleontology 53(1):153-163. – P. D. Gingerich – 1979.

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