Samus anonymus Gray, 1867

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 : 880

Samus anonymus Gray, 1867

Fig. 4E, G, H .

Material.—Middle–upper Eocene, upper Eocene, south-central Ukraine.

Remarks. —The spicules illustrated on the Fig. 4E and the partially preserved spicules on the Fig. 4G, H are amphitriaenes. These highly diagnostic spicules are almost identical in size (clads about 50 μm long) and shape with spicules of modern spirophorid sponge Samus anonymus Gray, 1867 (compare van Soest and Hooper 2002: fig. 1). The broken amphitriaene from the Fig. 4F seems to belong to Samus as well.

Figures

Fig. 4. Spicule morphotypes from south-central Ukraine; Russkie Tiŝki, middle Eocene (A, O), Nikol’skoe, upper Eocene (B, C), Kantemirovka, middle Eocene (D), Melovoe, upper Eocene (E), Staroverovka, middle Eocene (F), Kantemirovka, upper Eocene (G, I), Markovka, upper Eocene (H, N), Pogonovka borehole, upper Eocene (J, L, M), Markovka, middle Eocene (K, P, T), Kiselevka, middle Eocene (Q), Lipcy, middle Eocene (R), and Kiselevka, upper Eocene (S). A. Protriaene. B, C. Anatriaenes. D. Centrotylote oxea. E–H. Amphitriaenes. I–K. Acanthotriods. L, M. Verticillate oxeas. N. Verticillate style. O–R, T. Acanthoxeas. S. Sanidaster. After Ivanik (2003); modified.