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Swiss Journal of Geosciences
Fig. 5 | Swiss Journal of Geosciences

Fig. 5

From: Size distribution of the Late Devonian ammonoid Prolobites: indication for possible mass spawning events

Fig. 5

Proportion of the species Prolobites delphinus (Sandberger & Sandberger 1851) and Sporadoceras bidens (Sandberger & Sandberger 1851) with regards to the total number of specimens. a Enkeberg section. b Various sections in the Rhenish Mountains. The region of Eisborn contains the localities Beul and Ebberg; the region of Hövel contains the localities Ballberg, Roland, Ainkhausen, and Wettmarsen; the region of Hachen contains the localities Grasberg, Mittelberg, Rülsterberg, and Engelberg

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