Mesembriornis

Me-sem-bri-or-niss.
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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

Mesembriornis

Phonetic

Me-sem-bri-or-niss.

Named By

Francisco P.‭ ‬Moreno‭ ‬-‭ ‬1889.

Classification

Chordata,‭ ‬Aves,‭ ‬Cariamae,‭ ‬Phorusrhacidae,‭ ‬Mesembriornithinae.

Diet

Carnivore.

Species

M.‭ ‬incertus,‭ ‬M.‭ ‬milneedwardsi

Size

Up to‭ ‬1.5‭ ‬meters tall.

Known locations

Argentina.

Time Period

Tortonian of the Miocene through to the Gelasian of the Pleistocene.

Fossil representation

Enough fossils to identify one species,‭ ‬but the bones are fragmentary.

In Depth

       Mesembriornis was a middle of the range‭ ‘‬terror bird‭’ ‬with regards to its size,‭ ‬but it was one of the last known to have lived.‭ ‬In overall build Mesembriornis was similar to other medium sized phorusrhacids such as Andalgalornis and may have also filled the same ecological niche as its earlier predecessor.

       Mesembriornis is usually depicted as a fast running predator,‭ ‬and while it could have used its beak to attack and kill prey it has also been theorised that it may have used its long legs to kick prey as well as possibly other members of the same genus in interspecific combat as well as to defend its kills from other predators.‭

Further Reading

Further reading- Systematic revision of the Phorusrhacidae (Aves: Ralliformes). – Pap�is Avulsos de Zoologia 43(4). – Herculano M.F. Alvarenga & Elizabeth H�fling – 2003.

SPECIES SPOTLIGHT