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Re: Hell Creek and stegosaurs

To: <dinosaur@usc.edu>
Subject: Re: Hell Creek and stegosaurs
From: "Mickey Mortimer" <Mickey_Mortimer111@msn.com>
Date: Mon, 3 Jun 2002 17:42:49 -0700
References: <FDF9D18514DEDF4A9746F1ADC56B248B36D286@agronmail.agron.iastate.edu>
Reply-to: Mickey_Mortimer111@msn.com
Sender: owner-dinosaur@usc.edu

Tim Williams wrote-

> Name one fossil site that shows that large dromaeosaurids and stegosaurs
> co-existed in the same time and place.

Dromaeosaurs lived alongside stegosaurs in a several areas-
Chipping Norton Formation (unnamed dromaeosaurids; Lexovisaurus? vetustus)
Morrison Formation (unnamed "velociraptorine"; Hesperosaurus, Stegosaurus,
Hypsirophus)
Wealden Formation (Ornithodesmus; Regnosaurus)
Lianmugin Formation (Phaedrolosaurus; Wuerhosaurus homheni)
At least Phaedrolosaurus was large, with teeth twice the size of
Deinonychus'.  The Morrison teeth described by Britt (1991) are only
slightly smaller than Deinonychus'.

Mickey Mortimer

Follow-Ups:
- WEALDEN DROMAEOSAURS, JOSH TV STAR
  - From: darren.naish@port.ac.uk

References:
- RE: Hell Creek and stegosaurs
  - From: "Williams, Tim" <TiJaWi@agron.iastate.edu>

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