A GROUP OF JUVENILES PRESERVED IN THE MAN TLE-SHELL CAVITY OF A RADIOLITID RUDIST DURANIA-BLAYACI (TOUCAS, 1909) FROM THE CENOMANIAN OF LEHAVRE (SEINE-MARITIME, FRANCE)

Authors
BRETON G
Citation
G. Breton, A GROUP OF JUVENILES PRESERVED IN THE MAN TLE-SHELL CAVITY OF A RADIOLITID RUDIST DURANIA-BLAYACI (TOUCAS, 1909) FROM THE CENOMANIAN OF LEHAVRE (SEINE-MARITIME, FRANCE), Comptes rendus de l'Academie des sciences. Serie II. Sciences de la terre et des planetes, 322(6), 1996, pp. 493-500
Citations number
14
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Comptes rendus de l'Academie des sciences. Serie II. Sciences de la terre et des planetes → ACNP
ISSN journal
12518050
Volume
322
Issue
6
Year of publication
1996
Pages
493 - 500
Database
ISI
SICI code
1251-8050(1996)322:6<493:AGOJPI>2.0.ZU;2-F
Abstract
The chalky phosphatic internal mould of the right valve of an adult ra diolitid Durania blayaci (Toucas, 1909) (Middle Cenomanian, Craie de R ouen Fm, Le Havre, Seine-Maritime, France) contains ca 60 juveniles, 1 to 4 mm long, all oriented with the right valve towards the adult she ll. The right valve of these juveniles is coiled and there is a monopl eurid or caprotinid-like hinge. Three scenarios are discussed: canniba lism, fixation of larvae on the adult shell and incubation.