-------- Original Message --------
Subject: RE: Fixing fossils in place for digitization
Date: Tue, 16 Sep 2008 08:54:12 -0700 (PDT)
From: Heaton, Timothy H. (USD) <[EMAIL PROTECTED]>
To: <[email protected]>
References: <[EMAIL PROTECTED]>
Back when I was measuring rodent jaws I build a block to hole them in a
standardized position. One end of the block had a gap filled with
flexible foam rubber with a wedge cut out of it to fit the wedge-shape
of the jaws. I strung thin fishing line around the periphery to hold the
jaws against the foam. I was photographing the jaws in occlusal and
buccal view for digitizing. Once I inserted a jaw I would set it under
the camera (on a camera stand) and take a photograph, then I would turn
the block on its side for the other photograph. The block assured that
the fossils were always the same distance from the camera. This made the
photography very quick (I measured over 4000 jaws this way). The system
worked well for compete and partial jaws, but not very well for isolated
teeth. If I needed to photograph a single tooth I would stick it in a
little piece of wax or clay and place that in the block.
-Tim
Professor Timothy H. Heaton /|Mountains /| Phone: 605-677-6122
Chair of Earth Science/Physics /::|Deserts /::| FAX: 605-677-6121
University of South Dakota /::::|Caves /::::| EM: [EMAIL PROTECTED]
Vermillion, SD 57069-2390 /::::::| /::::::| www.usd.edu/~theaton
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