Mexiconium absidatum Shelley, 1996
Mexiconium absidatum Shelley, 1996:135, figs. 4, 31–38. Hoffman, 1999:29. Bueno-Villegas et al., 2004:586.
Distribution. Known only from the type locality on the north side of Cofre de Perote, 13.3 mi (21.8 km) S La Vigas, Veracruz, Mexico (Fig. 9).