1865Heliolites exiguus sp. n. — Billings, pp. 428, fig. 31:14
1990Propora conferta var minima Lindström, 1899 — Young & Noble, pp. 191
1990Propora exigua (Billings, 1865) — Young & Noble, pp. 191-193, fig. 2, 5.6-5.11, 6.1
Selection of related publications
Mõtus, M.-A., Hints, O. (eds) 2007.
10th International Symposium on Fossil Cnidaria and Porifera. Excursion B2: Lower Paleozoic geology and corals of Estonia. Excursion Guidebook.10th International Symposium on Fossil Cnidaria and Porifera. Excursion B2: Lower Paleozoic geology and corals of Estonia. Excursion Guidebook, pp. 1-64.