Bonanzacarpum Sprungerorum Sp. Nov. - A Bizarre Fruit From The Eocene Green River Formation In Utah, Usa Author Manchester, Steven R. Author Lott, Terry A. text Fossil Imprint 2019 2019-11-25 75 2 281 288 http://dx.doi.org/10.2478/if-2019-0016 journal article 10.2478/if-2019-0016 2533-4069 4773589 Genus Bonanzacarpum gen. nov. T y p e. Bonanzacarpum sprungerorum sp. nov. P l a n t F o s s i l N a m e s R e g i s t r y N u m b e r. PFN000563 (for new genus). E t y m o l o g y. Bonanza (the nearest town to the fossil occurrences in northeastern Utah ) plus carpum (fruit). D i a g n o s i s. Fruit a tabular 4–6 sided circumscissile capsule. Capsule unilocular, with closely fitting operculum. Basal surface of locule with 7–11 obpyriform raised areas radiating from a central point and pointing proximally.