With respect to the limbs, is biramous the right word to use? I know it has two branches, but they are not homologous at all to those of crustacean limbs.
AFAIK. The (1959)Treatise devotes a couple of pages to 'Biramous Appendages' and I've seen the term in a fair number of other places.
Are we allowed to reference other sites? Probably we should have a link to Sam Gon's trilobite page?
http://www.aloha.net/~smgon/
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