Macropneustidae Lambert 1905

Description: English: A deep-sea spatangoid sea urchin Phrissocystis sp. observed in the abyss by the NOAA Okeanos Explorer mission "2017 American Samoa Expedition: Suesuega o le Moana o Amerika Samoa". Date: 18 March 2017. Source: http://echinoblog.blogspot.fr/2017/03/okeanos-tropical-pacific-highlights.html. Author: NOAA Okeanos Explorer.

Description: English: Fossil of a Macropneustes mortoni at the Tellus Science Museum near Cartersville, Georgia. Date: 18 September 2021 (according to Exif data). Source: Own work. Author: JJonahJackalope.

Description: English: Fossil for a Macropneustes mortoni at the Tellus Science Museum near Cartersville, Georgia. Date: 18 September 2021 (according to Exif data). Source: Own work. Author: JJonahJackalope.