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RE: Yixian Trees
>From the photos they seem pretty circular in cross section:
Publications on fossil tree trunks from the much earlier Tiaojishan Formation
report that they were preserved in situ, standing upright, in tuff. So
flattening should not be expected as it would if they were deposited on a
From: owner-DINOSAUR@usc.edu [owner-DINOSAUR@usc.edu] on behalf of David
Sent: Wednesday, August 01, 2012 6:46 PM
Subject: Re: Yixian Trees
> Cool, thanks. 1.9 meters in diameter might be comparable to a modern
> day podocarp standing 30 meters tall.
But are such logs preserved in their original 3D shape? Or are they
squished flat to some degree? The bones from there are almost completely
flattened after all...