The aim of this paper is to point out the first reporting of Moorellina parca (Rau), Davidsonella sinuata (Deslongchamps) and Suessia liasiana (Deslongchamps) in the Apenninic Lower Toarcian beds. The sampling of 460 specimens of ammonites (mainly fragmentary specimens) allowed us to correlate the fossiliferous level known in the literature for the rich associations with brachiopods and crinoids in the basal Toarcian, Polimorphum Zone. Due to its uniqueness and paleontological value, we propose the Toarcian fossil deposit of Colle Vecchio to be included in the regional list of Geosites for the conservation of the geological heritage.
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Cresta et al. (2024) studied this question.
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