Kef Zoura D and Ain Misteheyia are stratified Capsian escargotieres (one openair, the other a rockshelter) in the Telidjene Basin, Eastern Algeria. They were excavated in the 1970s but have remained incompletely published. The sites are the only modern excavations of a Capsien Typique/Capsien Superieur sequence, demonstrating that this is indeed a chronological progression related to the 8200 cal BP climate event. The technological (introduction of pressure flaking), palaeoeconomic and palaeoecological changes related to this event are examined in these contributions.