Re: [dinosaur] Psittacosaurus amitabha, new species from Cretaceous Ondai Sayr Locality, Mongolia

Paul P <[email protected]>
Newsgroups gmane.science.dinosaurs.general
Message-ID <[email protected]>
Genus vs. species is sometimes arbitrary, but not always. Clustering algorithms can help to determine which it should (probably) be. Morphometrics, cladistics, etc.


On Friday, July 26, 2019, 2:03:40 PM UTC, David Marjanovic <[email protected]> wrote:

> [...] Psittacosaurus amitabha is resolved as the most basal member of the genus Psittacosaurus in our phylogenetic analysis. This taxon expands our knowledge of the already-speciose genus Psittacosaurus

These two sentences are arbitrary; nothing prevented the authors from naming a new genus for this species. But apparently psittacosaurid genera are like Highlanders, there can be only one...
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