Anaticapitula anatiformis ( De Wever, 1982a )

Cifer, Tim, Goričan, Špela, Gawlick, Hans-Jürgen & Auer, Matthias, 2020, Pliensbachian, Early Jurassic radiolarians from Mount Rettenstein in the Northern Calcareous Alps, Austria, Acta Palaeontologica Polonica 65 (1), pp. 167-207 : 184

Anaticapitula anatiformis ( De Wever, 1982a)

Fig. 9A–D.

1982 Bisphaerocephalina (?) sp.; Imoto et al. 1982: pl. 1: 10.

1982a Jacus? anatiformis sp. nov.; De Wever 1982a: 205, pl. 11: 10–15.

1982b Jacus? anatiformis De Wever, 1982a ; De Wever 1982b: 343, pl. 54: 1–5; pl. 58: 1, 2, 6.

1990 Jacus anatiformis De Wever, 1982a ; De Wever et al. 1990: pl. 3: 10.

2001 Jacus cf. anatiformis De Wever, 1982a ; Gawlick et al. 2001: 43, fig. 2: 19.

2001 Jacus anatiformis De Wever, 1982a ; Gawlick et al. 2001: 46, fig. 5: 16.

2004 Anaticapitula (?) anatiformis ( De Wever, 1982a) ; Matsuoka 2004: fig. 145.

2006 Anaticapitula anatiformis ( De Wever, 1982a) ; Goričan et al. 2006: 18, pl. JAC02: 1–11 (and synonymy therein).

2006 Jacus? anatiformis De Wever, 1982a ; Yeh and Yang 2006: 343, pl. 7: 14.

2009 Jacus anatiformis De Wever, 1982a ; Gawlick et al. 2009: 118, fig. 64: 2.

2011 Anaticapitula anatiformis ( De Wever, 1982a) ; Bandini et al. 2011: pl. 8: 26.

Material.—Sample Rö37: stub Rö37_6 (seven specimens); sample Rö38: stub Rö38_1 (one specimen); sample Rö416: stub Rö416_4 (nine specimens), Mount Rettenstein , Northern Calcareous Alps, Austria, Lower Pliensbachian .

Remarks.—A huge variety of forms differing in overall size and structure of the thorax have been included in Anaticapitula anatiformis ( Goričan et al. 2006) . The samples of the present study only contain specimens with a two-layered thorax. The morphotype with a simple thoracic wall of large polygonal pore frames (e.g., Goričan et al. 2006: pl. JAC 02: 6–11) has not been found.

Stratigraphic and geographic range. —Hettangian to Middle –Upper Toarcian ( Carter et al. 1998, 2010). Worldwide.

Fig. 8. Radiolarians from Mount Rettenstein, Austria, Pliensbachian, Early Jurassic. A–G. Pantanellium browni Pessagno and Blome, 1980 . A–F. Sample → Rö37. G. S ample Rö416. H–J. Pantanellium skedansense Pessagno and Blome, 1980 , sample Rö37. K. Pantanellium haidaense Pessagno and Blome, 1980 ; sample Rö37. L, M. Gorgansium alpinum Kozur and Mostler, 1990 , sample Rö37. N. Gorgansium blomei Kozur and Mostler, 1990 , sample Rö417.

O–S. Gorgansium gongyloideum Kishida and Hisada, 1985 . O–Q, S. Sample Rö416. R. Sample Rö37. T, U. Archaeocenosphaera laseekensis Pessagno and Yang in Pessagno et al., 1989. T. Sample Rö416. U. S ample Rö37. V. Novamuria macfarlanei (Whalen and Carter in Carter et al., 1998), sample Rö417. W–X. Xiphostylus simplus Yeh, 1987 , sample Rö37. Y. Triactoma aff. rosespitensis (Carter in Carter et al., 1988), sample Rö37. Z. Cyclastrum scammonense Whalen and Carter, 2002 ; sample Rö416. AA, AB. Cuniculiformis plinius De Wever, 1982a , sample Rö416. AC– AD. Haeckelicyrtium

sp. 1. AC. Sample Rö416. AD. Sample Rö37. AE, AF. Farcus cf. kozuri Yeh, 1987 , sample Rö37. AG. Farcus graylockensis Pessagno, Whalen and Yeh, 1986 , sample Rö37. AH. Saitoum keki De Wever, 1982a , sample Rö416. AI, AJ. Bipedis douglasi Whalen and Carter in Carter et al., 1998. AI. Sample Rö416. AJ. Sample Rö417. AK. Bipedis fannini Carter in Carter et al., 1988, sample Rö38.