Yang, Z. Y.; Xu, G. R. (1966). Triassic brachiopods of Central Gueizhou (Kueichow) Province, China. China Industry Publishing House, Beijing, 151 pp.[details]
Traits (2024). Pseudospiriferina variabilis Yang & Xu, 1966 †. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1752280 on 2024-07-14
Marine Species Traits editorial board (2024). Marine Species Traits. Pseudospiriferina variabilis Yang & Xu, 1966 †. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1752280 on 2024-07-14
original descriptionYang, Z. Y.; Xu, G. R. (1966). Triassic brachiopods of Central Gueizhou (Kueichow) Province, China. China Industry Publishing House, Beijing, 151 pp.[details]
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