Holotype of Eoradiolites quadratus from the Edwards Formation of Bell County, Texas (Univ. Texas BEG 20646).Paratype of Eoradiolites quadratus from the Edwards Formation of Bell County, Texas (Univ. Texas BEG 20647).Paratype of Eoradiolites quadratus from the Edwards Formation of Bell County, Texas (Univ. Texas BEG 20648).