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While reviewing a list of dinosaur species names, I found a number of
occurrences where older specific names were apparently sunk into newer ones,
unless I am quite astray, is in violation of one of the most fundamental
ICZN rules. Yet authoritative works like The Dinosauria II, to cite only one,
tend to accept some of these referrals.
Just two examples:
1) Manospondylys gigas (Cope 1892) sunk into Tyrannosaurus rex (Osborn
1905). I suppose M. gigas is strictly speaking a nomen dubium. If it is
and conspecific with T. rex, the only way to save the name T. rex is to
petition the ICZN, etc. Has it been done? Or is this referral just another
example of floppy systematics?
2) Thescelosaurus garbanii (Morris 1976) sunk into Bugenasaura infernalis
(Galton 1995). If the T. garbanii material is diagnostic, why is it not
Have I missed some important taxonomic principle here?
Thanks in advance,
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