Recent marine reptile papers with free pdfs:
Case V. Miller, JosÃ P. O'Gorman, Steven W. Salisbury, Rodolfo A. Coria, Eric M. Roberts, Patrick M. O'Connor, Marcelo A. Reguero & Matthew Lamanna (2020)
A new plesiosaur (Reptilia: Sauropterygia) specimen from the Upper Cretaceous of west Antarctica, with comments on the ontogeny and morphological diversity of the elasmosaurid pelvic girdle.
Annals of Carnegie Museum 86(2): 93-106
[No official online link or doi for now]
During Early/Middle Triassic Shastasauridae were located in western Tethys.
We hypothesized three possible migration route for Early/Middle Triassic shastasaurids.
The Viking Graben could represent a waterway across northern Europe.
This hypothesis is partially speculative, further evidence could come from additional future data.