Lophocyrtis, Haeckel, 1887 emend. Sanfilippo & Caulet, 1998

Popova, Irina M., Baumgartner, Peter O., Guex, Jean, Tochilina, Svetlana V. & Glezer, Zoya I., 2002, Radiolarian biostratigraphy of Paleogene deposits of the Russian Platform (Voronesh Anticline), Geodiversitas 24 (1), pp. 7-59 : 40

publication ID

https://doi.org/ 10.5281/zenodo.5375608

persistent identifier

https://treatment.plazi.org/id/965DED24-0E57-5428-FF38-8577398DFB12

treatment provided by

Marcus

scientific name

Lophocyrtis
status

 

Lophocyrtis View in CoL ex. gr. Calocyclas semipolita Clark & Campbell, 1942 ( Fig. 11I View FIG )

Calocyclas semipolita Clark & Campbell, 1942: 83 , pl. 8, figs 12, 14, 17-19.

Albatrossidium litos – Kozlova 1999: 146, pl. 30, figs 13, 14; pl. 35, fig. 3 (only).

GEOGRAPHIC DISTRIBUTION. — Of Calocyclas semipolita : California; of Lophocyrtis View in CoL ex. gr. C. semipolita: Voronesh Anticline.

STRATIGRAPHIC RANGE. — Of Calocyclas semipolita : middle to latest middle Eocene ( Clark & Campbell 1942; Blueford & White 1984; Blueford 1988); of A. litos : middle Eocene ( Kozlova 1999); of Lophocyrtis ex. gr. C. semipolita : early-middle Eocene (this study).

REMARKS

The third segment of this specimen is longer than that of Calocyclas semipolita typ. and the width of the second and third segments are equal, which also makes difference between this specimen and C. semipolita typ. Kozlova (1999) did attribute the specimens (pl. 30, figs 13, 14; pl. 35, fig. 3 [only]) to Albatrossidium litos . To our point of view this definition is not correct, because the C. litos typ. has a very irregular distribution of pores on its surface comparing to C. semipolita ( Clark & Campbell 1945) .

Kingdom

Chromista

Phylum

Radiozoa

Class

Polycystina

Order

Nassellaria

Family

Theoperidae

Loc

Lophocyrtis

Popova, Irina M., Baumgartner, Peter O., Guex, Jean, Tochilina, Svetlana V. & Glezer, Zoya I. 2002
2002
Loc

Albatrossidium litos

KOZLOVA G. E. 1999: 146
1999
Loc

Calocyclas semipolita

CLARK B. L. & CAMPBELL A. S. 1942: 83
1942
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