Angolatitan

An-goe-lah-tie-tan.
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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

Angolatitan ‭(‬Angola titan‭).

Phonetic

An-goe-lah-tie-tan.

Named By

Octavio Mateus,‭ ‬Louis L.‭ ‬Jacobs,‭ ‬Anne S.‭ ‬Schulp,‭ ‬Michael J.‭ ‬Polcyn,‭ ‬Tatiana S.‭ ‬Taveres,‭ ‬Andre Buta Neto,‭ ‬Maria Luisa Morais‭ & ‬Miguel T.‭ ‬Antunes‭ ‬-‭ ‬2011.

Classification

Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Sauropoda,‭ ‬Titanosauriformes,‭ ‬Somphospondyli.

Diet

Herbivore.

Species

A.‭ ‬adamastor‭

Size

Humerus about 110 centimetres long, ulna about 69 centimetres long. Total size uncertain due to lack of remains.

Known locations

Angola‭ ‬-‭ ‬Itombe Formation.

Time Period

Turonian of the Cretaceous.

Fossil representation

Partial right fore limb including scapula,‭ ‬humerus,‭ ‬ulna,‭ ‬radius,‭ ‬and three metacarpals‭ (‬MGUAN-PA-003‭)‬.

In Depth

       The naming of Angolatitan was a very important discovery for the country of Angola because it was the first genus of dinosaur known to have come from there.‭ ‬Angolatitan is so far known only from a partial right fore limb,‭ ‬so details like size or a specific dietary preference beyond just plants are impossible to establish with certainty.‭ ‬What is known though is that Angolatitan was a titanosaur,‭ ‬a kind of advanced sauropod that‭ ‬was common during the Cretaceous.‭ ‬A possible feature known in some titanosaurs such as Saltasaurus is the presence of bony osteoderm armour in the skin,‭ ‬but it is unknown if Angolatitan had armour.‭ ‬The fore limb however is enough to identify Angolatitan as a member of the Somphospondyli,‭ ‬meaning that it was probably most similar to genera along the lines of Sauroposeidon,‭ ‬Argentinosaurus,‭ ‬Astrophocaudia and Wintonotitan to name just a few examples.

       One interesting thing to note is that the fossil formation that Angolatitan is known to have a very high occurrence of marine organisms from fish and ammonites to even marine reptiles such as plesiosaurs,‭ ‬mosasaurs like Angolasaurus and Tylosaurus and even turtles such as Angolachelys.‭ ‬This could indicate that the holotype remains of Angolatitan were from an individual that was swept out to sea.

Further Reading

-‭ ‬Angolatitan adamastor,‭ ‬a new sauropod dinosaur and the first record from Angola‭ ‬-‭ ‬Octavio Mateus,‭ ‬Louis L.‭ ‬Jacobs,‭ ‬Anne S.‭ ‬Schulp,‭ ‬Michael J.‭ ‬Polcyn,‭ ‬Tatiana S.‭ ‬Taveres,‭ ‬Andre Buta Neto,‭ ‬Maria Luisa Morais‭ & ‬Miguel T.‭ ‬Antunes‭ ‬-‭ ‬2011.

SPECIES SPOTLIGHT