mass extinction.

Taxonomy

Below is a cladogram modified from Cuthbertson et al., 2013.

References

General references

* Ellis, Richard, (2003) Sea Dragons - Predators of the Prehistoric Oceans. University Press of Kansas
* McGowan, C & Motani, R. (2003) Ichthyopterygia, Handbook of Paleoherpetology, Part 8, Verlag Dr. Friedrich

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