| mhorn | Дата: Thursday, 30.09.2010, 23:57 | Сообщение # 1 |
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| El Hariri K., Dommergues J.-L., Meister C., Chafiki D. (2010) Nouvelles données sur les ammonites du Sinémurien et du Pliensbachien basal du Haut Atlas central (Maroc). Taxonomie et implications stratigraphiques et paléobiogéographiques // Revue de Paléobiologie. Vol.29. no.1. P.217-260.
Pdf: http://www.ville-ge.ch/mhng/paleo/paleo-pdf/29-1/pal_29_1_05.pdf
A description of 25 taxa including a new species [Parasteroceras (Paroxynoticeras?) scaphitoides nov. sp.] in the area of Béni-Méllal, Midelt and Erachidia brings new information on the ammonite stratigraphy and paleogeography of the Sinemurian and the base of the Pliensbachian in the Central High-Atlas. For that period seven stratigraphical units based on Tethyan taxa are distinguished. This Mediterranaen endemism appears at the genus level (Bouhamidoceras gr. zizense, Dudresnayiceras gr. suessiforme) but usually at species or subspecies level [Angulaticeras cf. coquandi, A. angustisulcatum, Arnioceras gr. rejectum, Asteroceras gr. varians, A. aff. langi, Parasteroceras (Paroxynoticeras) scaphitoides, Gleviceras richei, Microderoceras (Eoderoceras) gr. nothum-birchiaides]. On the contrary Asteroceras gr. stellare, Paltechioceras gr. tardecrescens correspond to species with a wide geographical distribution.
Middle Jurassic - Lower Cretaceous ammonites & aptychi
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