In Depth Keilhauia is a genus of opthalmosaurid ichthyosaur that lived during the early Cretaceous. Though only known from partial remains, Keilhauia shares many similarities to the genera Cryopterygius and Caypullisaurus. Further Reading - A new ophthalmosaurid (Ichthyosauria) from Svalbard, Norway, and evolution of the ichthyopterygian pelvic girdle. - PLoS ONE 12(1):e0169971. - L. L. … Read more
In Depth The first specimen of Acamptonectes was discovered in 1958 from the Speeton Clay Formation, but was never officially described. A second specimen from this formation was recovered in 1985. Early interpretations of Acamptonectes led to the conclusion that it was similar to Platypterygius, but a new discovery from Germany in 2003 was found … Read more
Shastasaurus species and fossil distribution Shastasaurus hit the record books in 2011 with the re-examination of a set of ichthyosaur remains from British Columbia that were initially described as a new species of Shonisaurus back in 2004. Study of the remains has found that while they are similar, the remains are a better match … Read more
In Depth Athabascasaurus is a member of the Platypterygiinae, a wide ranging group of ichthyosaurs that were active in both hemispheres. Other similar ichthyosaurs include Sveltonectes, Aegirosaurus, Platypterygius and Caypullisaurus amongst others. Further Reading – A new Lower Cretaceous (lower Albian) ichthyosaur genus from the Clearwater Formation, Alberta, Canada. – Canadian Journal of Earth Sciences … Read more
In Depth Auroroborealia is a genus of small icnthyosaur that lived during the late Triassic. The fragmentary nature of the holotype fossils of Auroroborealia mean that many details of Auroroborealia are uncertain. Auroroborealia however seems to have been a small bodied ichthyosaur with short jaws. Further reading - Ichthyosaurs from the Upper Triassic (Carnian–Norian) … Read more