†Laganum leptum Jackson 1937 (sand dollar)
Click image to enlarge. Click to access iDigBio record.
Echinoidea - Clypeasteroida - Laganidae
Full reference: R. T. Jackson. 1937. Mexican fossil echini. Proceedings fo the United States National Museum 84(3015):227-237
Belongs to Laganum according to R. T. Jackson 1937
Sister taxon: Laganum depressum
Type specimen: Its type locality is Hacienda Chinampa, which is in an Oligocene marine horizon in the Mesón Formation of Mexico
Ecology: slow-moving semi-infaunal detritivore
Distribution: found only at Hacienda Chinampa
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.