Jobaria ‭(‬Jobar‭ ‬-‭ ‬after a creature in African mythology‭)

Short Info

Jobaria ‭(‬Jobar‭ ‬-‭ ‬after a creature in African mythology‭)

Phonetic : Jo-ba-re-ah.

Named By : P.C.‭ ‬Sereno.,‭ ‬A.L.‭ ‬Beck,‭ ‬D.B.‭ ‬Dutheil,‭ ‬H.C.E.‭ ‬Larsson,‭ ‬G.H.‭ ‬Lyon,‭ ‬B.‭ ‬Moussa,‭ ‬R.W.‭ ‬Sadleir,‭ ‬C.A.‭ ‬Sidor,‭ ‬D.J.‭ ‬Varricchio,‭ ‬G.P.‭ ‬Wilson‭ & ‬J.A.‭ ‬Wilson‭ ‬-‭ ‬1999

Diet : Herbivore

Size : Estimated 21 meters long

Type of Dinosaur : Sauropod

Type Species : J.‭ ‬tiguidensis‭ (‬type‭)

Found in : Niger,‭ ‬Abaka -‭ ‬Tiouraren Formation

When it Lived : Early Cretaceous, 132-94 million years ago

Jobaria is a genus sauropod dinosaur. It lived between 164 million and 161 millions years ago in the middle Jurassic Period. Jobaria, the only valid sauropod currently known from the Tiouraren was discovered in 1997.

Iziko Jobaria Dinosaur Skeleton PanoramaNkansahrexford, CC BY 3.0, via Wikimedia Commons

Jobaria was a primitive sauropod measuring 18.2 meters (60 feet) in length and weighing 22.4 tonnes (24.7 short tons). Gregory S. Paul, in 2016, gave a lower estimate of 16 metres (52 feet) and 16 tons (18 short tons). Its tail and backbone were simpler than the whiplash tail and complex vertebrae of Apatosaurus and Diplodocus, later North American sauropods.

Paul Sereno suggested that it may have been able rear up on its hind leg, as Paul Sereno compared Jobaria’s humerus circumference to those of extant elephants. Jobaria’s weight distribution suggests that Jobaria was supported by its rear limbs, rather than the front (as in elephants). It is also possible that Jobaria could have reared up more easily, as elephants can.

It was discovered in the Tiouraren Formation in Niger in the fall 1997. It is one of the most complete known sauropods, with over 95% preserved.

Named after Jobar, a mythical giant animal from the area, the genus was named for him. Tuaregs believed his bones to be the origin of the fossils. The exact name tiguidensis is derived from the Tiguidi cliff, which was the place of discovery.

It was originally believed that the sediments it was found belonged to the Hauterivian-Barremian stage of the early Cretaceous Period. Jobaria is approximately 132 million year old. Re-interpretation of sediments revealed that they were more likely to be from the Bathonian and Oxfordian stages in the middle Jurassic, which are between 167-161 million years old.

Source: Wikipedia