[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: how old did they get?
I don't think there is any definite work done on this question. I have
mentioned several possibilities some months ago. [Check the archive].
Basically, it is not known - some bones show growth lines (L.A.G.'s,
actually) that may indicate a year's passage. For several South African
dinosaurs that were examined, the lines indicate ages from 17 to 23 years.
(It is NOT known if the lines indicate one year). [I think this is not very
clear or accurate].
If we estimate that dinosaurs grew as fast as modern crocodillians
(about a foot per year for adults), then some of the giant sauropods such as
_Argentinosaurus_ may have lived 180+ years (sort of like Galopogas
turtles). [This is a good guess].
Of course the giant sauropods might have lasted for an obscene length of
time - say 1200+ years - There is NO evidence for this!!! [PURE
Likely best guess: 70-120 years for the giant sauropods, 20-45 years
for most of the rest, especially the theropods. [This is a GUESS!!!!]
Hope this helps,
From: firstname.lastname@example.org <email@example.com>
To: dinosaur list serve <firstname.lastname@example.org>
Date: Wednesday, May 06, 1998 3:06 AM
Subject: how old did they get?
>For all the reading I have done I don't think I have ever come across any
>information as to the predicted age of the dinosaurs. I can can make a
>few estimated guesses but there is nothing like seeing it im print or
>having someone else verify my shots in the dark. :>