Talk:Geosaurus

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Sunk?

According to this paper, coauthored by our own Mark t young (or formerly our own) it seems so: http://www.ingentaconnect.com/content/bsc/zoj/2009/00000157/00000003/art00005 Or would rather seem Dakosaurus is sunk?FunkMonk (talk) 19:26, 3 November 2009 (UTC)[reply]

Heh, it's waaaay more complicated than one being sunk into the other. I've been updating some of these articles based on Mark's paper yesterday. Basically, remember that each of these genera has traditionally included upwards of five species. Mark and de Andrede actually (shock, horror) ran a large phylo analysis to see if these genera were monophyletic. They were not, not even paraphyletic, more like quintuple polyphyletic. Species from various metriorhynchid "genera" were scattered across the tree with little regard for traditional generic groupings. Young & de Andrede re-classified them all based on their proximity to the type species of each genera. Some species of Dakosurus ended up in Geosaurus, but not all. Almost all species of Geosaurus except the type ended up in Cricosaurus. None of the genera were sunk (in fact Rhacheosaurus was resurrected), but most of the metriorhynchid species were reshuffled into different genera. This paper delt mainly with the geosaurines. A paper examining the tangle of Metriorhynchus itself is apparently forthcoming. Dinoguy2 (talk) 15:56, 4 November 2009 (UTC)[reply]

Too bad Mark left the project, he would be perfect to sort it out. Think he left due to disagreement over a Primaeval article or similar. Maybe we should invite him over again. FunkMonk (talk) 16:00, 4 November 2009 (UTC)[reply]

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