video phone beyonce mp3 Dinosaurs Unearthed - Ostafrikasaurus - Early Spinosaurid - Documentary

Ostafrikasaurus - Early Spinosaurid - Documentary
In this video, I talk about Ostafrikasaurus, a spinosaurid only known from a single tooth.

Turn on the subtitles for a better experience!

Ostafrikasaurus was a medium-sized spinosaurid that lived in Africa during the Jurassic period around 148 to 145.5 million years ago.

This dinosaur is only known from a tooth 49 millimeters long and its size is estimated.

Its size is estimated to be 10.3 meters long or 33.7 feet long and it would’ve weighed around 2 to 3 tons.

Ostafrikasaurus was originally identified as Labrosaurus in 1920. When Labrosaurus was declared a synonym to Allosaurus, Ostafrikosaurus’ teeth weren’t seen similar to Allosaurus’ known teeth, and for that reason they were moved to the theropod Ceratosaurus. The teeth weren’t a perfect match, and again in 2012, paleontologist Eric Buffetaut established a new genus of spinosaurid dinosaur along with them.

Because of the lack of specimens and because Ostafrikasaurus is based upon the description of one tooth, there are many things we don’t know about. We can’t say exactly how big it was or how it looked like or what it ate.

Although it has been classed as a spinosaurid, it might have looked a bit different because it was one of the earliest spinosaurids to have evolved. Resulting in more megalosaurid-like features such as a short snout and a small sail.

The holotype tooth was identified as coming from a late Jurassic era deposit. This makes Ostafrikasaurus the oldest known spinosaurid.

The tooth seems to be similar to more general theropod tooth form and broader at the base unlike the long and thin teeth that are adapted for spearing which are seen commonly throughout the spinosaurid genera.

The form of this tooth is the inspiration for the species name: O. crassiserratus which translates to English as “thick-serrated”.

Ostafrikasaurus could’ve developed the long snout from spinosaurids, or it might have been short like an early theropod, or maybe a combination of both. It is also uncertain if this dinosaur had the sensory features proposed for other spinosaurid genera.

Ostafrikasaurus might have had enlarged claws on its hand, and it might have been a generalist hunter instead of a fish hunter, or it might have been a scavenger.

Ostafrikasaurus lived in an environment where creatures such as Elaphrosaurus or Giraffatitan lived.

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Artwork:
Ostafrikasaurus by Hyrotrioskjan from http://www.deviantart.com/art/Ostafri...

Tendaguru Titans- Ostafrikasaurus Strikes Back from
http://www.deviantart.com/art/Tendagu...

Ostafrikasaurus crassiseratus by Teratophoneus from
http://www.deviantart.com/art/Ostafri...

Ostafrikasaurus by Fafnirx from
http://www.deviantart.com/art/Ostafri...

Ostafrikasaurus by SameerPrehistorica from
http://www.deviantart.com/art/Ostafri...

Ostafriksaurus crassiserratus by Miyess from
http://www.deviantart.com/art/Ostafri...

Spinosaurus and Ostafrikasaurus by TeketeVerinenStjerne
http://www.deviantart.com/art/Spinosa...

Ozzy Ostafrikasaurus by SpyroOandOcynder from
http://www.deviantart.com/art/Ozzy-Os...

Ostafrikasaurus by wolvesanddogs23 from
http://www.deviantart.com/art/Ostafri...

Sources: http://www.prehistoric-wildlife.com/s...
http://dinopedia.wikia.com/wiki/Ostaf...
https://en.wikipedia.org/wiki/Ostafri...


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video phone beyonce mp3 Dinosaurs Unearthed - Ostafrikasaurus - Early Spinosaurid - Documentary
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