Author:
CUNY GILLES,MARTIN MICHEL,RAUSCHER RAYMOND,MAZIN JEAN-MICHEL
Abstract
Two successive assemblages of vertebrate microremains have been
found at Grozon (Jura,
northeastern France). Palynological analysis confirms a Norian age for
the first one and a Rhaetian
age for the second. A new species of neoselachian shark, Grozonodon candaui, is erected from isolated
teeth of Norian age, based on their enameloid ultrastructure. Distinctive
parallel-fibred enameloid is
recognized among teeth previously assigned to Hybodus minor, which
therefore represents another
early neoselachian shark. These structural characteristics confirm the
close relationship of hybodont
and neoselachian sharks.
Publisher
Cambridge University Press (CUP)
Cited by
19 articles.
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