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RE: Dinosaurs burrowed to keep warm
One thing that I've always found striking about -Leaellynasaura amicagraphica-
suddenly seems a lot more intriguing. We have three articulated specimens (the
holotype - theres a lot more to it than just the skull!, the osteomyelitic
specimen and (probably) the recent Crayfish Bay specimen, all of which have at
least part of their tails preserved in situ (Crayfish Bay's is practically
complete). None of the show any traces of ossified tendons.
One explanation for this (by David Pickering) is an adaptation to allow the
animal to more easily fit in a burrow.
From: owner-DINOSAUR@usc.edu [mailto:owner-DINOSAUR@usc.edu] On Behalf Of Dann
Sent: Wednesday, 21 March 2007 12:34 PM
Subject: Dinosaurs burrowed to keep warm
Dinosaurs burrowed to keep warm
Agençe France-Presse - Wednesday, 21 March 2007
Palaeontologists have found the remains of small dinosaurs that made their
home in a burrow, a finding that suggests dinosaurs could exploit a much
wider habitat than thought.
Fossilised bones and the dinosaurs' underground den were found in the US
state of Montana.
Researchers have named the dinosaurs Oryctodromeus cubicularis, a mix of
Greek and Latin that means "digging runner of the lair".
The burrow's soil has been dated to the mid-Cretaceous, a hothouse period
that ran from about 135-115 million years ago.
"[It is] the first trace and body fossil evidence of burrowing behaviour in
a dinosaur," the trio of US and Japanese researchers say.
Their paper appears in the Proceedings of the Royal Society B, a journal of
the UK's Royal Society...
Read more at:
GIS / Archaeologist http://www.geocities.com/dannsdinosaurs
Melbourne, Australia http://heretichides.soffiles.com
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