[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: Theropod phylogenies



> < ecdysozoa >
> That's not fair! You use complicated names :o) What kind of animal is
that?

Most. Except dinosaurs (see, I mentioned them). Er... Arthropoda,
Tardigrada, Onychophora, Nematoda, Nematomorpha, Loricifera, Priapulida,
Kinorhyncha; Gastrotricha could be the sistergroup; Chaetognatha could be
inside, but those beasties get weirder the longer you look at them. First
proposed (with little more than arthropods and nematodes) in 1997 on the
basis of a pretty bad molecular analysis published in Nature, but found
again in (almost?) all molecular and some morphological analyses since. Not
accepted by everyone (traditionally Arthropoda + Tardigrada + Onychophora
and Annelida are considered sistergroups).

Information on the mentioned groups (several of them known for less than 100
or even 50 years) in http://tolweb.org/tree... or so I hope. Mostly "strange
worms". :-)