This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.
R. Mooi, 2018 - Late Oligocene–Miocene non-lunulate sand dollars of South America:Revision of abertellid taxa and descriptions of two new families,two new genera, and a new species - Zootaxa (4369), 301-326 (journal article, English)
A. B. Smith, 2009 - Classification of the Echinoidea - Online database (), - (unpublished, English)
S. Martinez, 2005 - A New Species of Abertella (Echinoidea: Scutellina) from the Gran Bajo del Gualicho Formation (Late Early Miocene-Early Middle Miocene), Río Negro Province, Argentina - Journal of Paleontology (79), 1229-1233 (journal article, English)
J. J. Sepkoski, Jr., 2002 - A compendium of fossil marine animal genera - Bulletins of American Paleontology (363), 1-560 (serial monograph, English)
C. W. Walcott, 1908 - Cambrian Geology and Paleontology. No. 2. Cambrian Trilobites - Smithsonian Miscellaneous Collections (53), 13-48 (journal article, English)
W. Waagen, 1883 - Productus Limestone Fossils, Part IV, fas. 2 - Salt Range Fossils, Palaeontologia Indica, Series 13 (1), 391-546 (serial monograph, English)