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

To: dinosaur-l@usc.edu
Subject: Re: [dinosaur] Psittacosaurus amitabha, new species from Cretaceous Ondai Sayr Locality, Mongolia
From: Paul P <turtlecroc@yahoo.com>
Date: Fri, 26 Jul 2019 20:42:53 +0000 (UTC)
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Reply-to: Paul P <turtlecroc@yahoo.com>
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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 
<david.marjanovic@gmx.at> 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...

Follow-Ups:
- Re: [dinosaur] Psittacosaurus amitabha, new species from Cretaceous Ondai Sayr Locality, Mongolia
  - From: Tim Williams <tijawi@gmail.com>
- Re: [dinosaur] Psittacosaurus amitabha, new species from Cretaceous Ondai Sayr Locality, Mongolia
  - From: "David Marjanovic" <david.marjanovic@gmx.at>

References:
- [dinosaur] Psittacosaurus amitabha, new species from Cretaceous Ondai Sayr Locality, Mongolia
  - From: Ben Creisler <bcreisler@gmail.com>
- Re: [dinosaur] Psittacosaurus amitabha, new species from Cretaceous Ondai Sayr Locality, Mongolia
  - From: "David Marjanovic" <david.marjanovic@gmx.at>

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