Talk:Dakosaurus

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"Godzilla"[edit]

I'm pretty sure it's knicknamed "Godzilla". -Walkingwith08 (talk) 20:01, 6 May 2008 (UTC)

Is this true? And where should I put it if it is? -Walkingwith08 (talk) 20:01, 6 May 2008 (UTC)

The knickname "Godzilla" only applied to Dakosaurus andiniensis, after a National Geographic expose on some new skulls of D. andiniensis in 2005. It was not applied to the genus as a whole, and it was not coined just after the genus or South American species were described (which was in 1856 and 1996 respectively). There is a mention the National Geographic knickname on the Dakosaurus andiniensis page. It does not need to be repeated here. Mark t young (talk) 20:20, 6 May 2008 (UTC)

If there's a species page for this genus...THen is there one for Tyrannosaurus rex? -Walkingwith08 (talk) 18:47, 7 May 2008 (UTC)

Tail fin[edit]

What evidence is there that it had a tail fin, rather than just a laterally compressed tail more akin to a mosasaur (which crocodilians tend to have)? Were there bones in this tail fin? —Preceding unsigned comment added by 75.73.70.113 (talk) 18:39, 26 October 2008 (UTC)

Other genera of metriorhynchids, such as Metriorhynchus and Geosaurus have a downwards tail fluke (called a hypocercal tail) preserved. There is a nice specimen of Geosaurus gracilis in the Natural History Museum in London that has the upper lobe preserved. The lower lobe has the tail vertebrae within it (which sharply kink downwards), while the upper lobe is fleshy.
However, no specimens of Dakosaurus have a the posterior half of the tail preserved. Based upon the evolutionary relationships with Metriorhynchidae we can confidently reconstruct Dakosaurus as having a hypocercal tail. Interestingly mosasaurs such as Plotosaurus also had a hypocercal tail, with the tail vertebrae in the lower lobe and a fleshy upper lobe. Hope this helps, Mark t young (talk) 18:57, 26 October 2008 (UTC)

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