Barremian ammonite faunas from the western High Atlas, Morocco – biostratigraphy and palaeobiogeography

Asteroids (Echinodermata) from the Barremian (Lower Cretaceous) of the Agadir Basin, west Morocco

“…1,2). Ammonites collected during these trips verify the age of the unit as within the Kotetishvilia compremissima Zone of the lower Barremian (Company et al, 2008). The unit is here called the Taba Starfish Bed.…”

The Barremian heteromorph ammonite Dissimilites from northern Italy: taxonomy and implications

“…In summary, D. dissimilis occurs from the lowermost K. compressissima Zone up to the top of the M. moutonianum Zone (= middle Coronites darsi Zone in Company et al 2008;see Reboulet et al 2009) in this region (Fig. 7).…”

“…Africa.- Company et al (2008) reported Dissimilites dissimilis from the upper Lower Barremian of the western High Atlas of Morocco (Sidi M'Bark section, Imsoune section, Addar section, Tamri section).…”

Interhemispheric radio-astrochronological calibration of the time scales from the Andean and the Tethyan areas in the Valanginian–Hauterivian (Early Cretaceous)

“…The sudden appearance of Spitidiscus in Argentina, immediately above the non-marine Avilé sandstones, is associated with a maximum flooding surface widespread in the basin. It is a local reflection of the main "mid" Hauterivian sea level rise (Rawson, 1993(Rawson, , 2007 Paraspiticeras and Sabaudiella, the two genera which characterize the two following biozones are present in the Tethys where they are minor components of the late Hauterivianearly Barremian ammonoid fauna (Cecca et al, 1998;Company et al, 2005Company et al, , 2008Baudin et al, 2006). As they have not been studied in detail in the classic European sections, their age in the basin in relation to the Tethys is difficult to assess accurately.…”