Ancorinidae Schmidt, 1870

Łukowiak, Magdalena, Pisera, Andrzej & Stefanska, Tetiana, 2019, Uncovering the hidden diversity of Paleogene sponge fauna of the East European Platform through reassessment of the record of isolated spicules, Acta Palaeontologica Polonica 64 (4), pp. 871-895 : 875-876

publication ID	https://doi.org/ 10.4202/app.00612.2019
persistent identifier	https://treatment.plazi.org/id/AE74871F-B87C-B72A-FF48-F880FEC9FEE7
treatment provided by	Felipe
scientific name	Ancorinidae Schmidt, 1870
status

Treatment

Family Ancorinidae Schmidt, 1870 View in CoL Ancorinidae indet.

Figs. 1O, Z View Fig , 2E, H, K, R, U, V View Fig .

Material.—Lower, middle–upper Eocene, south-central Ukraine.

Remarks.—Spicules of ancorinid affinity are anatriaenes ( Fig. 2H, K, U, V View Fig ) and diaenes with wavy clads ( Figs. 1Z View Fig , 2R View Fig ). The latter ones resemble spicules of modern Tribrachium Weltner, 1882 (compare with van Soest 2017: fig. 51F). Also some of the pro- ( Fig. 2E View Fig ) and anatriaenes ( Fig. 1O View Fig ) could belong to ancorinids, e.g., Ecionemia Bowerbank, 1862 compare van Soest and Beglinger 2009: fig. 7).

There are other spicules that could be assigned to Ancorinidae , e.g., those from the Fig. 2Q View Fig (? Dercitus ) and Fig. 10B View Fig (? Stryphnus ; compare Sollas 1888: pls. 15, 6: 4–6); however, the later one can be also a dermal pentactine of Hexactinellida.