You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Along the Comitan River at its sumidero, Lagos de Montebello, 42 km northeast of La Trinitaria. Remove constraint Place: Along the Comitan River at its sumidero, Lagos de Montebello, 42 km northeast of La Trinitaria. Topic Selaginellaceae Remove constraint Topic: Selaginellaceae