Peltoceras marysae (microconch)
Associated dimorph: Peltoceras marysae
Ammonoidea
[Beta] View Peltoceras sp. occurences on the world map.
Diameter without the lappets: 35 mm.
Peltoceras marysae is an evolute species. The microconch only shows the first two stages of the macroconch: the inner whorls show fine, dense simple ribs, which then become a bit stronger and sometimes fork. The ammonite is terminated by two lappets.
2005 . Bonnot A., Boursicot P.-Y. & Ferchaud P.
Peltoceras marysae, une nouvelle espèce de Peltoceratinae (Ammonitina, Aspidoceratidae) dans l'horizon à Leckenbyi (Callovien supérieur, zone à Athleta) de Montreuil-Bellay (Maine-et-Loire, France). - Revue de Paléobiologie, Muséum d'Histoire Naturelle, Genève, vol. 24, n° 1
p. 75 to 95
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Created by
Guillaume
on
30/12/2016 - 15:28:32
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