Ceratozamia latifolia

Will the real Ceratozamia latifolia please step forward? This species name has been known since 1847 as a plant from Mexico however it’s not known which plant in Mexico it truly is. It could be the plants in San Luis Potosi around Tamazunchale or it could be the plants now known as Ceratozamia microstrobili.  A general look for latifolia has arching leaves and somewhat wide leaflets with reddish brown emergent leaves.