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In 1912, a fossil collector discovered some strange bone fragments in the eerie, beautiful Cretaceous Bahariya rock formation of Egypt. Eventually, that handful of fossil fragments would reveal to scientists one of the strangest dinosaurs that ever existed — the world’s only known semi-aquatic dinosaur.

Thanks as always to Nobumichi Tamura for allowing us to use his wonderful paleoart: http://spinops.blogspot.com/

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References:
https://blogs.scientificamerican.com/tetrapod-zoology/the-discovery-and-early-interpretation-of-spinosaurus/
What big neural spines you have…
http://www.prehistoric-wildlife.com/species/s/spinosaurus.html
https://www.nature.com/articles/324359a0
https://www.researchgate.net/profile/David_Martill/publication/277428738_A_new_crested_maniraptoran_dinosaur_from_the_Santana_Formation_Lower_Cretaceous_of_Brazil/links/54ac23b40cf2479c2ee76e0c/A-new-crested-maniraptoran-dinosaur-from-the-Santana-Formation-Lower-Cretaceous-of-Brazil.pdf
http://science.sciencemag.org/content/282/5392/1276
https://www.researchgate.net/profile/Gregory_Wilson4/publication/235242262_A_Long-Snouted_Predatory_Dinosaur_from_Africa_and_the_Evolution_of_Spinosaurids/links/004635268b0ff353e3000000.pdf
https://www.researchgate.net/profile/Eric_Buffetaut/publication/228488989_New_information_on_the_skull_of_the_enigmatic_theropod_Spinosaurus_with_remarks_on_its_size_and_affinities/links/0912f5121ec22d6bdc000000.pdf
https://ac.els-cdn.com/S1251805098800542/1-s2.0-S1251805098800542-main.pdf?_tid=2c66d5b1-c1b1-474b-9ec6-a48aa6dad0d5&acdnat=1524349730_cc6c271c4c4f70e8b44bb983edd459c6
https://www.cambridge.org/core/journals/geological-magazine/article/riddle-of-spinosaurus-aegyptiacus-dorsal-sail/B19941405E1791A97230BCF003017B7B/core-reader
https://news.nationalgeographic.com/news/2014/09/140911-spinosaurus-fossil-discovery-dinosaur-science/?beta=true
https://www.smithsonianmag.com/science-nature/meet-mighty-spinosaurus-first-swimming-dinosaur-180952679/

The Baryonyx walkeri is from Cuff A, Rayfield E