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rhyncholite
rhyncholite One of the beak-like structures which are considered to be the upper jaw structures of fossil cephalopods (Cephalopoda). They are approximately rhomboidal in shape, with a slightly concave lower surface. The anterior portion is termed the hood, the posterior portion the shaft. The first examples are found in the Carboniferous.
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Cite this article
AILSA ALLABY and MICHAEL ALLABY. "rhyncholite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "rhyncholite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O13-rhyncholite.html AILSA ALLABY and MICHAEL ALLABY. "rhyncholite." A Dictionary of Earth Sciences. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-rhyncholite.html |
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rhyncholite
rhyncholite One of the beak-like structures which are considered to be the upper-jaw structures of fossil cephalopods (Cephalopoda). They are approximately rhomboidal in shape, with a slightly concave lower surface. The anterior portion is termed the hood, the posterior portion the shaft. The first examples are found in the Carboniferous.
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Cite this article
MICHAEL ALLABY. "rhyncholite." A Dictionary of Zoology. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "rhyncholite." A Dictionary of Zoology. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O8-rhyncholite.html MICHAEL ALLABY. "rhyncholite." A Dictionary of Zoology. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-rhyncholite.html |
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