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RE: Yixian Trees



Cool, thanks. 1.9 meters in diameter might be comparable to a modern day 
podocarp standing 30 meters tall.

The tricky part is correlating the wood taxon to the the diameters. In other 
words, were the largest logs of Protopodocarpoxylon larger in diameter, on 
average, than the largest Araucarioxylon from the Yixian? 

I fear no one has done such a correlation, nor published a database of 
specimens big enough for me to do it.
________________________________________
From: owner-DINOSAUR@usc.edu [owner-DINOSAUR@usc.edu] on behalf of Ben Creisler 
[bcreisler@gmail.com]
Sent: Wednesday, August 01, 2012 3:54 PM
To: dinosaur@usc.edu
Subject: Re: Yixian Trees

From: Ben Creisler
bcreisler@gmail.com

Unfortunately, the fossil log in this photo is said to come from the
Late Jurassic in Yixian, not the Early Cretaceous. However, it does
give a diameter of 1.5 to 1.9 meters. Clearly big trees existed
earlier.

http://art.people.com.cn/GB/41067/41121/7142516.html