(2003) curve, therefore allowing to attribute this part of the section to an Early Longobardian age (Fig.7).
The [sup.87]Sr/[sup.86]Sr values of the lower part of the succession are coincident with those of the time equivalent interval of the Tethys curve (Korte et al., 2003), and therefore it serves to establish the detailed Early Longobardian age for this part of the stratigraphic succession.
It is possible that this unit corresponds to the Hispanicum zone, characterized by Protrachyceras hispanicum, and of Longobardian (upper Ladinan) age.
The Awadi -Subzone would correspond to the middle Fassanian, the Epigonus Zone to the upper Fassanian and the top of the section could be Hispanicum zone (lower Longobardian).
One advocates an Early Ladinian origin while others prefer an Upper Ladinian (Longobardian) age.
The second group, that includes, among others, Nicora (1981), Gullo and Kozur (1991) and Kozur (1993), pointed to a Late Ladinian (upper Longobardian) origin of P.
As Calasparra has a well-established biostratigraphy with materials that range from Fassanian (Curionii and Awadi Subzones, Epigonus Zone) to lower Longobardian (Hispanicum Zone), the presence of P.