Abstract
A new zonation for the lower Valanginian in the Betic Cordillera is presented. It is based on the study of 16 sections located near Caravaca and Cehegin (Region of Murcia). From bottom to top, the following interval zones, defined by the first appearance of the index-species, are distinguished: • Thurmanniceras pertransiens Zone, which can be subdivided into two subzones, a lower Th. pertransiens Subzone and an upper Vergoliceras salinarium Subzone. The latter is characterized by the disappearance of Olcostephanus drumensis and the appearance of Luppovella superba. • Neocomites neocomiensiformis Zone, also with two subzones, the Baronnites hirsutus Subzone below (characterized by the appearance of Busnardoites subcampylotoxus and Olcostephanus guebhardi) and the Valanginites dolioliformis Subzone above (Busnardoites campylotoxus is restricted to this subzone). • Karakaschiceras inostranzewi Zone, subdivided as well into two subzones, a lower Karakaschiceras inostranzewi Subzone and an upper Saynoceras contestanum Subzone. The assemblages characterizing each of these biozones can be recognized throughout the Mediterranean region.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
