Supersaurus lourinhanensis skeletal reconstruction

Supersaurus lourinhanensis ("Super reptile from Lourinha") is a mid-sized diplodocid from the Late Jurassic Lourinha Formation in Portugal. Closely related to the giant Morrison diplodocid Supersaurus vivianae, it is much smaller in size than its North American cousin, with a proportionally shorter neck.

It was originally described as a separate genus, Dinheirosaurus lourinhanensis ("Dinheiro reptile from Lourinha"), but Tschopp and Mateus' 2015 specimen-level analysis of diplodocoids found it to be too similar to S. vivianae to warrant a separate genus (well, unless you're a taxonomic splitter, that is, genericometers are rather subjective in the end), separated by 11 diagnostic characters.

Missing portions of the skeleton are restored based on Supersaurus vivianae, Kaatedocus, and Diplodocus. Parts with insufficient data or mentioned only in text are in light grey.

Reconstructed dimensions

• Hip height: ~2.87 metres
• Back height: ~3.47 metres
• Shoulder height: ~3.18 metres
• Total height: ~8.1 metres
• Standing length: ~17 metres
• Axial length: ~19.74 metres

References

• Bonaparte & Mateus, 1999, "A new diplodocid, Dinheirosaurus lourinhanensis gen. et sp. nov, from the late Jurassic beds of Portugal"
• Jensen, 1985, "Three new sauropod dinosaurs from the Upper Jurassic of Colorado"
• Curtice et al., 1996, "A reassessment of Ultrasauros macintoshi (Jensen, 1985)"
• Lovelace et al., 2005, "Revised osteology of Supersaurus vivianae"
• Lovelace et al., 2007, "Morphology of a specimen of Supersaurus (Dinosauria, Sauropoda) from the Morrison Formation of Wyoming, and a re-evaluation of diplodocid phylogeny"
• Mannion et al., 2011, "New information on the anatomy and systematic position of Dinheirosaurus lourinhanensis (Sauropoda: Diplodocoidea) from the Late Jurassic of Portugal, with a review of European diplodocoids"
• Hatcher, 1901, "Diplodocus (Marsh): its osteology, taxonomy, and probable habits, with a restoration of the skeleton"
• Tschopp & Mateus, 2012, "The skull and neck of a new flagellicaudatan sauropod from the Morrison Formation and its implication for the evolution and ontogeny of diplodocid dinosaurs"
• Scott Hartman's Diplodocus carnegii
• bricksmashtv's Supersaurus vivianae skeletals

Update log

• 9/20/2019: A complete remake, brought up to my current standards. See the previous version for comparison.