Czaja A., Covich A.P., Estrada-Rodríguez J.L., Romero-Méndez U., Saenz-Mata J., Meza-Sánchez I.G., Ávila-Rodríguez V., Becerra-López J.L., Aguillón-Gutiérrez D.R. & Castañeda-Gaytán J.G. (2019). Fossil freshwater gastropods from northern Mexico – A case of a “silent” local extirpation, with the description of a new species. <em>Boletín de la Sociedad Geológica Mexicana.</em> 71(3): 609-629.available online athttp://dx.doi.org/10.18268/BSGM2019v71n3a2