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Re: oldest and most complete plesiosaur fossil

Why is it called "oldest"? Hasn't there been plesiosaurs during the Jurassic period?

----- Original Message ----- From: "Nick" <nick.gardner@gmail.com>
To: "DML" <dinosaur@usc.edu>
Sent: Saturday, March 22, 2008 12:58 PM
Subject: Re: oldest and most complete plesiosaur fossil

_Nichollsia_ is preoccupied by a genus of isopod.

Nick Gardner

On Sat, Mar 22, 2008 at 6:34 AM, Janet m vandenburgh <van02@cox.net> wrote:

Lest we forget the fossil in fossil fuel, scientists have announced a new
discovery: The oldest and most complete plesiosaur fossil, dragged out of
the Alberta oil sands.

 Dug up 14 years ago, the Cretaceous Period fossil was only just formally
 described in the German journal Palaeontographica Abteilung A.

Name: Nichollsia borealis, named for renowned paleontologist Elizabeth
(Betsy) Nicholls, who is credited with transforming the understanding of
prehistoric ocean life by describing the largest-ever marine reptile, a
75-foot-long ichthyosaur, discovered in northern British Columbia in 1999.

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