The distribution of spectroscopic redshifts used in this study from (top) wide-field spectroscopic surveys (section 2.2.1), (middle) targeted spectroscopic surveys (Section 2.2.2), and (bottom) the HST-Hyperion survey (Section 2.3). For each survey, we show only the galaxies that meet the imposed criteria on R.A., Dec., and IRAC magnitude described in their respective sections. Ground-based spectroscopic redshifts all have reliabilities of ≳70%, whereas HST-grism redshifts all have reliabilities ≳56.7%. The number of spectra used from each survey is reported in the legend next to the survey name. In each plot, we additionally mark the approximate boundaries of Hyperion in redshift space.