• †
Archaeohelorus Daohugou, China, Middle Jurassic (
Callovian) • †
Bellohelorus Li et al. 2017
Yixian Formation, China, Early Cretaceous (
Aptian) • †
Conohelorus Turga, Russia, Early Cretaceous (Aptian) • †
Korehelorus Rosse-Guillevic, Rasnitsyn, Nam, & Jouault, 2023
Jinju Formation, South Korea, Early Cretaceous (
Albian) • †
Laiyanghelorus Zhang 1992
Laiyang Formation, Yixian Formation, China, Early Cretaceous (Aptian) • †
Liaoropronia Zhang and Zhang 2001 Yixian Formation, China, Early Cretaceous (Aptian) • †
Novhelorus Li et al. 2017 Yixian Formation, China, Early Cretaceous (Aptian) • †
Obconohelorus Rasnitsyn 1990 Turga, Russia, Early Cretaceous (Aptian) • †
Protocyrtus Karabastau Formation, Kazakhstan, Middle-Late Jurassic (Callovian/
Oxfordian)
Gurvan-Eren Formation, Mongolia Yixian Formation, China, Turga, Russia, Early Cretaceous (Aptian) • †
Sinohelorus Shi et al. 2013 Yixian Formation, China, Early Cretaceous (Aptian) • †
Sinuijuhelorus Jon et al. 2019
Sinuiju Formation, North Korea, Early Cretaceous (Aptian) • †
Spherogaster Zhang and Zhang 2001 Yixian Formation, China, Early Cretaceous (Aptian) == References ==