Genus Camachoaster n. gen.

Diagnosis. As for the family, but with interambulacrum 5 discontinuous, the basicoronal widely separated from the first postbasicoronals by adjacent first postbasicoronal plates I and V.

Etymology. Named in recognition of Dr. Horacio Homero Camacho (1922-2015), the first geologist and paleontologist to revisit the early 20th century work of H. von Ihering on Patagonian Mesozoic and Cenozoic faunas. Camacho worked and taught at the University of Buenos Aires for over 65 years, and was among the first to recognize the importance of the study of Patagonian echinoids in stratigraphic correlation and paleoenvironmental reconstruction.

Type species. Camachoaster maquedensis n. sp.