[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
What ever happened to Deinodon?
I'm not a professional - I'm just grown up childhood dinosaur enthusiast
with a failing memory. I was wondering if someone could summarize for me
what criteria caused reclassification of Tyrannosaurus and his kin over
the years. Why were the Theropod infraorders Coelurosauria and
Carnosauria dropped - was the line drawn between them too ambiguous?
I've noticed the Ornithosuchidae were extracted from Carnosauria and
given a suborder to replace the Pseudosuchian Thecodonts. Is this
Ornithosuchia suborder now believed the common ancestor between
Saurischia and Ornithoschia? And I remember Tyrannosauridae was once
also referred to as Deinodontidae, and Gorgosaurus as Deinodon. (Am I
right in assuming Gorgosaurus and Deinodon are now both synonymous with
Albertosaurus? At one point Albertosaurus and Gorgosaurus were
considered different animals.) As I'm not current in paleontology, I
find myself getting confused, especially since my library is outdated.
Why do new genus names sometimes replace older ones? I always liked the
name Brontosaurus better than Apatosaurus. (I remember there was an
issue over a missing Brontosaurus skull - was that a factor?) I always
liked the name Trachodon too, perhaps only due to childhood familiarity.
That's a name I NEVER see anymore. I thought Trachodon was renamed
Anatosaurus but I have one *old* book that lists them as two separate
specimens, and a newer book that doesn't list Trachodon at all. And at
some point in the past I thought Antrodemus was going to replace
Allosaurus, but I'm glad to see that it hasn't.
--Christopher Sirmons Haviland