TABLE 2 in First biostratigraphic dating for a Cretaceous ichthyosaur from the Apennine Chain (Italy)

TABLE 2. — Nannofossil vertical distribution along the measured section. Abbreviations: CaCO3 concentration: h, high; s, scarce; a, absent; abundance of nannofossils: A, abundant, 1 to 10 specimens per field of view; C, common,1 specimen per 2-10 fields of view; F, few, 1 specimen per 11–100 fields of view; R, rare, 1 specimen per 101–1000 fields of view; preservation degree: G, good; M, moderate; P, poor (see the text for further clarification).
samplempreservation [CaCO 3]Assipetra terebrodentarius Braarudosphaera regularisChiastozygus tenuis Cretarhabdus conicus Cyclagelosphaera margerelii Eiffellithus striatus Helenea chiastiaLithraphidites carniolensis Micrantholithus hoschulzii Micrantholithus imbricatus Micrantholithus obtususNannoconus kamptneri Nannoconus pseudoseptentrionalis Nannoconus sp. Nannoconus steinmannii Retecapsa angustiforata Rhagodiscus angustus Rhagodiscus asper Rhagodiscus splendens Staurolithites mutterlosei Watznaueria barnesiae Watznaueria britannicaZeugrhabdotus diplogrammus Zeugrhabdotus embergeri Zeugrhabdotus noeliae Zeugrhabdotus scutulaPAD 119.4GhF–––C–RFC–RCCCCFRFFRARCFF–PAD 098.5Pa––––––––––––––––––––––––––PAD 087.3Pa–––––––F–––––––––R––CF––––PAD 076.35Pa––––––––––––––––––––––––––PAD 065.15Pa––––––––––––––––––––––––––PAD 054.7Pa––––––––––––––––––––––––––PAD 043.85Pa––––––––––––––––––––––––––PAD 10 VERTEBRAE3.5MSFRRR–FFFFFFF–FRRFF–FACCF–RPAD 032.8Pa––––––––––––––––––––––––––PAD 022.45Pa––––––––––––––––––––––––––PAD 012.05Pa–––––RR––––––––––R––RR––––PAD 001.1Pa––––––––––R–––––––––CR–R––