What was the Deep Sea like During Prehistoric Times?

The Prehistoric oceans were bubbling with leviathans toothed predators almost the size of whales were common place up until fairly recently. The ferocious creatures that used to inhabit the oceans are well known about, however, what was the deep sea like during these times. Check out Luavis on deviant art: https://www.deviantart.com/luavis/art/Abyssosaurus-Happy-Late-New-Years-902539741 To support me on Patreon (thank you): https://www.patreon.com/MothLightMedia To donate to my PayPal (thank you): https://www.paypal.me/mothlightmedia To buy merchandise: teespring.com/en-GB/stores/moth-light... Email: [email protected] If I have used artwork that belongs to you but have neglected to credit it this will just be because I was unable to find one. If this has happened please contact me and I will add a credit. Some Art work has been altered for the purposes of bettering them for video format; these alterations were done independent from the artists who created the original work, so they are not responsible for any inaccuracies that could have occurred with the changes being made. Further reading: https://sobekswimmingpool.wordpress.com/2021/10/09/polar-oddities-and-bathyal-ghouls-the-unspoken-diversity-of-the-cryptoclidids/ Sources: https://pubmed.ncbi.nlm.nih.gov/26581105/ https://www.researchgate.net/publication/265606226_Anatomy_of_Colymbosaurus_megadeirus_Reptilia_Plesiosauria_from_the_Kimmeridge_Clay_Formation_of_the_UK_and_High_Diversity_Among_Late_Jurassic_Plesiosauroids https://www.tandfonline.com/doi/full/10.1080/02724634.2014.850087 https://royalsocietypublishing.org/doi/10.1098/rspb.2023.2830 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4424620/ https://www.academia.edu/44636598/%D0%9C%D0%BE%D1%80%D1%84%D0%BE%D1%84%D1%83%D0%BD%D0%BA%D1%86%D0%B8%D0%BE%D0%BD%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5_%D0%BE%D1%81%D0%BE%D0%B1%D0%B5%D0%BD%D0%BD%D0%BE%D1%81%D1%82%D0%B8_%D0%BF%D0%BB%D0%B5%D0%B7%D0%B8%D0%BE%D0%B7%D0%B0%D0%B2%D1%80%D0%B0_Abyssosaurus_nataliae_PLESIOSAUROIDEA_PLESIOSAURIA_%D0%B2_%D1%81%D0%B2%D1%8F%D0%B7%D0%B8_%D1%81_%D0%B0%D0%B4%D0%B0%D0%BF%D1%82%D0%B0%D1%86%D0%B8%D0%B5%D0%B9_%D0%BA_%D0%B3%D0%BB%D1%83%D0%B1%D0%BE%D0%BA%D0%BE%D0%B2%D0%BE%D0%B4%D0%BD%D0%BE%D0%BC%D1%83_%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D1%83_%D0%B6%D0%B8%D0%B7%D0%BD%D0%B8 summary in english: Further reading: https://sobekswimmingpool.wordpress.com/2021/10/09/polar-oddities-and-bathyal-ghouls-the-unspoken-diversity-of-the-cryptoclidids/ https://www.researchgate.net/publication/257843065_A_New_Plesiosaur_of_the_Family_Aristonectidae_from_the_Early_Cretaceous_of_the_Center_of_the_Russian_Platform https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8684327/