Late Cretaceous (Cenomanian-Turonian) ammonites from southern Morocco and south western Algeria

A new cuspidate ptychodontid shark (Chondrichthyes; Elasmobranchii), from the Upper Cretaceous of Morocco with comments on tooth functionalities and replacement patterns

“…† Astarte and † Rhynchostreon ), possible crustaceans and slow, strongly ornamented ammonite (e.g. † Mammites nodosoides and † Thomasites rollandi ; Ettachfini and Andreu, 2004 ; Kennedy et al, 2008 ; Cavin et al, 2010 ; Lebedel et al, 2015 ; Meister et al, 2017 ; Cooper and Martill, 2020 ; Veysey et al, 2020 ), which all provided abundant food resources for lower level predators.…”

“…2B ) testifying to middle to outer ramp early Turonian marine environment (e.g. Lézin et al, 2012 ; Meister et al, 2017 ; Villalobos-Segura et al, 2019 ; Cooper and Martill, 2020 ; Veysey et al, 2020 ).…”

“… Cavin et al, 2010 ; Claeson et al, 2013 ; Angst and Bardet, 2015 ; Villalobos-Segura et al, 2019 ; Cooper and Martill, 2020 ). The Asfla Member is assigned to the early Turonian based on its ammonite fauna ( Mammites nodosoides Zone; Meister et al, 2017 ; Kennedy et al, 2008 ; Cavin et al, 2010 ). The macrofossil assemblages from the Goulmima area usually comprise ammonites, teleosts, pycnodont actino-pterygians, marine reptiles (e.g.…”

“…mosasauroids and plesiosaurs) and, more rarely, elasmobranchs (e.g. Bardet et al, 2003a , b ; Kennedy et al, 2008 ; Cavin et al, 2010 ; Claeson et al, 2013 ; Angst and Bardet, 2015 ; Gale et al, 2017 ; Meister et al, 2017 ; Allemand et al, 2018 ; Villalobos-Segura et al, 2019 , 2021 ; Cooper and Martill, 2020 ). Additionally, the limestones of the Akrabou Fm include shell beds, with a low-diversified bivalve assemblage, and stromatolites in various horizons ( Kennedy et al, 2008 ; Cooper and Martill, 2020 ).…”

Late Cretaceous sauropod tooth morphotypes may provide supporting evidence for faunal connections between North Africa and Southern Europe

“…The Continental Intercalaire of Algeria is less studied than the Kem Kem, and the age ranges from Barremian to Turonian. However, most authors set the age of the beds close to the Moroccan border (where our Algerian specimens are supposedly from), to Albian-Cenomanian-Turonian, with the Cenomanian layers being the most fossil-rich ( Läng et al, 2013 ; Benyoucef et al, 2015 ; Meister et al, 2017 ). As said before, the labeling, however, of ‘Taouz, Algeria’ is most likely not correct, as Taouz is situated in Morocco, south of Erfoud, close to the border with Algeria, where many fossils from the southern Kem Kem exposures, towards Ouzina, are collected over a broad expanse, usually in mines around Bagaa (M Dale, C Underwood, pers.…”