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Cyrtocapsella kladaros
Goll and Björklund, 1989
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Description - Add description
Diagnosis: A species of Cyrtocapsella characterized by a thin-walled inflated skeleton with densely spaced lattice pores on the three post-cephalic chambers.
Etymology: The trivial name is the Greek word kladaros, meaning frail.
Description: The skeleton consists of four thin-walled lattice chambers. The small, smooth and imperforate cephalis projects well above the thorax, from which it is separated by a distinctive horizontal stricture. Well-developed internal and external strictures also separate the three inflated post-cephalic chambers, of which the abdomen is largest. The fourth chamber is closed and bowl-shaped. These three chambers are densely perforated by small round pores of approximately equal size, which may be arranged in imperfect rows. Lattice bars are slender and impart a delicate aspect to the skeleton.
Remarks: The thin-walled, densely-perforate nature of Cyrtocapsella kladaros distinguishes it from other Cyrtocapsella species. Many specimens appear somewhat distorted and strictures are often oblique.
Occurrences: This short-ranging species is confined to: Samples 104-642B-22H-5, 75-77 cm to -22H-3, 75-77 cm; 104-642C-24H-2, 25-27 cm to -24H-1, 25-27 cm; 104-642D-2X-5, 25-27 cm to -2X-2, 25-27 cm; and Section 104-643A-13H, CC to Sample 104-643A-13H-3, 104-106 cm.
Size: 145-190 μm, maximum height; 112-148 μm, maximum abdominal width.
Holotype: PMO 117.591; Sample 104-643A-13H-5, 107-109 cm; England Finder P54/0; PI. 5, Figs. 24-26.
Picture: 24-26. Cyrtocapsella kladaros n. sp. Holotype; PMO 117.591; England Finder P54/0; Sample 104-643A-13H-5, 107-109 cm.
Cyrtocapsella sp. Björklund 1976, p.1157, pl 17, fig. 14.
| | Goll and Björklund 1989 |
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