original description
Hannibal, H. (1912). A synopsis of the recent and Tertiary freshwater Mollusca of the Californian province, based upon an ontogenetic classification. <em>Proceedings of the Malacological Society of London.</em> 10(2): 112-166, pls 5-6; 10(3): 167-211, pls 7-8., available online at http://biodiversitylibrary.org/page/15237075
page(s): 191, pl. 8, fig. 28 [details]
original description
(of Brannerillus involutus Pilsbry, 1934 †) Pilsbry, H. A. (1934). Pliocene fresh-water fossils of the Kettleman Hills and neighboring Californian oil fields. <em>The Nautilus.</em> 48(1): 15-17., available online at https://www.biodiversitylibrary.org/page/8520846
page(s): 16 [details]
original description
(of Brannerillus involutus praeposterus Pilsbry, 1934 †) Pilsbry, H. A. (1934). Pliocene fresh-water fossils of the Kettleman Hills and neighboring Californian oil fields. <em>The Nautilus.</em> 48(1): 15-17., available online at https://www.biodiversitylibrary.org/page/8520846
page(s): 16 [details]
original description
(of Brannerillus involutus thremma Pilsbry, 1935 †) Pilsbry, H. A. (1935). Mollusks of the fresh-water Pliocene beds of the Kettleman Hills and neighboring oil fields, California. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 86: 541-570. Philadelphia.
page(s): 564-565, pl. 23, figs 6-9 [details] Available for editors [request]
basis of record
Henderson, J. (1935). Fossil non-marine Mollusca of North America. <em>Geological Society of America Special Papers.</em> 3: 1-313.
page(s): 201 [details] Available for editors [request]
From editor or global species database
Type locality Marl 'reefs' near mouth of gulch south of Medallion One Canon, east flank of Kettleman Hills, near Coalinga, Kings County, California, United States; Tulare Formation, Pleistocene [details]