Mexican fossil Echini
Jackson, Robert Tracy, 1861-1948
Article
1937
Proceedings of the United States National Museum
84
Issue: 3015
227--237
BioStor
English
Washington Smithsonian Institution Press, [etc.]
BioStor: https://biostor.org/reference/79821 DOI: https://doi.org/10.5479/si.00963801.84-3015.227