IRMNG taxon details
original description
Mitta, V. V. (2011). Ammonites of Tethyan origin in the Ryazanian stage of the Russian platform: Genus Riasanella gen. nov. <em>Paleontological Journal.</em> 45(1): 13-22., available online at https://www.researchgate.net/publication/225882344 [details]
basis of record
Frau, C.; Wimbledon, W. A.; Ifrim, C.; Bulot, L. G.; Pohl, A. (2021). Berriasian ammonites of supposed Tethyan origin from the type 'Ryazanian', Russia: a systematic re-interpretation. <em>Palaeoworld.</em> 30(3): 515-537., available online at https://hal.science/hal-03341891v1 [details]
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