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What're Rebbachisaurids? (was - New Nemegtosaurus paper)
From: Tim Williams <email@example.com>
To: Subject: New Nemegtosaurus paper
Date: Thu, 25 Aug 2005 12:18:44 -0500
Wilson (2004) also notes that titanosaurs and rebbachisaurids appear to be
the only two sauropod clades that flourished in the Cretaceous. Although
other groups (brachiosaurids, dicraeosaurids, basal diplodocoids) survived
into the Cretaceous "they did not appear to diversify".
out of curiosity, what're the Rebbachisaurids like?
(were they armor-plated like the Titanosaurs?)
and, there may not be a solid answer for this, but I'll ask anyway - why
didn't Brachiosaurids, Dicraeosaurids, and Diplodocoids diversify?