Talk:Megapnosaurus

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Megapnosaurus

Isn't this still Megapnosaurus? FunkMonk (talk) 17:11, 17 February 2014 (UTC)[reply]

Depends on who you talk to. The only recent species-level phylogeny I know of (reproduced in the article) found it nested within Coelophysis (but so was Camposaurus). So, it's a question of Genericometer setting. I figured splitting all these spices into their own article would help lessen all the confusion. Google Scholar search from 2010-present shows 6 instances of "megapnosaurus rhodesiensis" and 13 instances of "coelophysis rhodesiensis", for what that's worth. Widening the search to the last 10 years shows 13 for Megapnosaurus and 31 for Coelophysis. So C. rhodesiensis appears to be current consensus. Dinoguy2 (talk) 17:34, 17 February 2014 (UTC)[reply]

Heheh, it also seems the "genericometer" has been retuned so that the name could be gotten rid of... In most other cases, dinosaur palaeontologists seem quite eager to split. FunkMonk (talk) 17:51, 17 February 2014 (UTC)[reply]

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Page name

When looking up the different names given to this animal on Google Scholar and allowing only articles published since 2017, Syntarsus rhodesiensis produces 70 results, Megapnosaurus produces 57, Coelophysis rhodesiensis produces 39, and Megapnosaurus rhodesiensis produces 28. Calling it Syntarsus is obviously inaccurate and cannot be done according to ICZN rules even if it is still the most popular name for whatever reason. The use of Megapnosaurus is evidently increasing and is promoted by the latest study on basal avepod phylogeny[1] due to rhodesiensis being closer to Camposaurus than to Coelophysis (same result that had already been found 10 years ago). Renaming this page Megapnosaurus rhodesiensis would allow it to remain cladistically neutral as a proximity with C. bauri wouldn't necessarily mean belonging in the same genus, but calling it Coelophysis rhodesiensis implies it is closely related to C. bauri. Similarly, page Coelophysis kayentakatae should, in my opinion, be renamed Syntarsus katentakatae (or "Syntarsus" kayentakatae) as it currently cannot be safely assigned to any valid genus, forcing us to preserve the original combination as a placeholder. Kiwi Rex (talk) 17:26, 18 April 2021 (UTC)[reply]

But if this is a different genus after all, it should just be Megapnosaurus? FunkMonk (talk) 17:52, 18 April 2021 (UTC)[reply]

Probably. Megapnosaurus keyentakatae is less used (at least in the last 4 years) than the other two and most analysis seem to place it outside the bauri+rhodesiensis clade. Kiwi Rex (talk) 18:10, 18 April 2021 (UTC)[reply]

Yeah, it seems keyentakatae will end up in a new genus? FunkMonk (talk) 18:12, 18 April 2021 (UTC)[reply]

Indeed, but we don't have any serious alternatives to Syntarsus yet - Coelophysis kayentakatae was only used 9 times in recent publications while Syntarsus katentakatae was used over 40 times. We unfortunately have to keep using that, though rhodesiensis can be moved to Megapnosaurus with breaking any rules or implying it's related to anything. Kiwi Rex (talk) 18:30, 18 April 2021 (UTC)[reply]