Sachs, S.; Kear, B. (2017). «A rare new Pliensbachian plesiosaurian from the Amaltheenton Formation of Bielefeld in northwestern Germany». Alcheringa42 (4): 1-14. doi:10.1080/03115518.2017.1367419.
Ketchum, H.F.; Benson, R.B.J. (2010). «Global interrelationships of Plesiosauria (Reptilia, Sauropterygia) and the pivotal role of taxon sampling in determining the outcome of phylogenetic analyses». Biological Reviews of the Cambridge Philosophical Society85 (2): 361-392. PMID20002391. doi:10.1111/j.1469-185X.2009.00107.x.
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Ketchum, H.F.; Benson, R.B.J. (2010). «Global interrelationships of Plesiosauria (Reptilia, Sauropterygia) and the pivotal role of taxon sampling in determining the outcome of phylogenetic analyses». Biological Reviews of the Cambridge Philosophical Society85 (2): 361-392. PMID20002391. doi:10.1111/j.1469-185X.2009.00107.x.