Australodocus

Australodocus (meaning "southern beam" from the Latin "australis" "southern" and the Greek "dokos"/δοκоς "beam") is a genus of sauropod dinosaur that lived during the Late Jurassic period, around 150 million years ago, in what is now Tanzania. Though initially considered a diplodocid, recent analyses suggest it may instead be a titanosauriform.
Discovery and naming.
The remains of "Australodocus bohetii" were recovered in 1909 from the Upper Dinosaur Member of the Tendaguru Formation of Tanzania, which has been a fertile ground for many Jurassic dinosaurs, including several genera of large sauropods, such as "Giraffatitan", "Wamweracaudia", "Janenschia", "Tendaguria", and "Tornieria". "Australodocus" itself is based on two neck vertebrae, which are less elongate than those of other diplodocids and differ in other anatomical details. These vertebrae were originally part of a series of four vertebrae collected in the 1909 expedition led by Werner Janensch; like some other fossils collected by German expeditions to Africa, the other bones were destroyed in World War II. The 2007 description of the surviving bones increases the known diversity of sauropods and diplodocids in Tendaguru.
The genus name is derived from the fact it was initially considered a southern (Gondwanan) relative of "Diplodocus". The species name honors Boheti bin Amrani, a native crew supervisor and chief preparator who was an important contributor to the German expeditions that first excavated the Tanzanian sites.
Systematics.
"Australodocus" was originally described as a diplodocid, because it had double (bifurcate) neural spines on some of its vertebra, a characteristic normally associated with diplodocoid sauropods. However, several later studies by John Whitlock and colleagues found that "Australodocus" is actually a member of the sauropod clade Titanosauriformes, possibly closely related to "Brachiosaurus". The presence of a higher number of macronarian sauropods in the Tendaguru environment compared to numerous diplodocoids in the Morrison Formation may be due to previously known differences in environment, with the Tendaguru being dominated by conifer forest, and the Morrison being dominated by open plains of low-browse flora. Tschopp et al. (2015) recovered "Australodocus" as a diplodocine diplodocid, closely related to "Supersaurus" and "Dinheirosaurus" (which may be a synonym of the former), but stressed that the low number of titanosauriform taxa used in the cladistic analysis made such a placement untenable due to the shared somphospondylous internal structure of "Australodocus" and somphospondylian titanosauriforms. Mannion "et al."(2019) found "Australodocus" to be a non-titanosaur somphospondyl based on the somphospondylous nature of the internal structure of the cervicals, considering it a potential euhelopodid.
Size.
Gregory S. Paul in 2010 estimated its length at about and weight at just .