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Glaphyrocysta perforata
Glaphyrocysta perforata Hultberg and Malmgren, 1985, p.48-49
Hultberg, 1985(c) in Hultberg, 1985(a) described Glaphyrocysta perforata, but illustrated a specimen (pl.2, fig.5), which is not the holotype.
Hultberg, 1985(d), also gave the citation Glaphyrocysta perforata sp. nov. and designated as holotype the illustration in his pl.4, fig.H. This is the same specimen as that illustrated in Hultberg and Malmgren, 1985, fig.llA, and designated as the holotype by these authors.
Holotype: Hultberg, 1985(a), fig.11A
Locus typicus: Limhamn area, Southern Sweden
Stratum typicum: Late Maastrichtian-Danian
Original description: Hultberg and Malmgren, 1985, p. 48-49
Cavate cyst, composed of endophragm and periphragm, separated by marginal pericoels. The surface of the endophragm is slightly granulate on the dorsal surface, with denser granulation at the paraplate boundaries. The surface of the periphragm is smooth. The shape of the endophragm is subspherical to lenticular, with an antapical indentation. The margin of the endophragm bears a few solid, unevenly distributed processes of varying thickness. The bases of the processes are isolated, but the processes gradually become confluent with the periphragm. The periphragm is proximally strongly perforate. Distally the periphragm is almost nonperforate, and terminates with a ragged margin. The proximal part of the periphragm is directed laterally out from the endophragm, but the periphragm bends forwards distally, and terminates with the periphragm margins pointing inwards, towards the parasulcus. In apical view, the periphragm is wing-shaped. Antapically, in well preserved specimens, the periphragm shows an indentation.
Paratabulation is expressed by denser granulation at the parasutures on the dorsal side. Paraplates 3"", 4"", and 5"" are clearly indicated. Accessory archeopyle sutures indicate paraplates 1"", 2"", and 6"".
The archeopyle is apical, type tA. Operculum free.
Paracingulum is indicated by folds in the endophragm and parasutural granulation.
Parasulcus is not indicated.
Hultberg, 1985(c) in Hultberg, 1985(a) described Glaphyrocysta perforata, but illustrated a specimen (pl.2, fig.5), which is not the holotype.
Hultberg, 1985(d), also gave the citation Glaphyrocysta perforata sp. nov. and designated as holotype the illustration in his pl.4, fig.H. This is the same specimen as that illustrated in Hultberg and Malmgren, 1985, fig.llA, and designated as the holotype by these authors.
Holotype: Hultberg, 1985(a), fig.11A
Locus typicus: Limhamn area, Southern Sweden
Stratum typicum: Late Maastrichtian-Danian
Original description: Hultberg and Malmgren, 1985, p. 48-49
Cavate cyst, composed of endophragm and periphragm, separated by marginal pericoels. The surface of the endophragm is slightly granulate on the dorsal surface, with denser granulation at the paraplate boundaries. The surface of the periphragm is smooth. The shape of the endophragm is subspherical to lenticular, with an antapical indentation. The margin of the endophragm bears a few solid, unevenly distributed processes of varying thickness. The bases of the processes are isolated, but the processes gradually become confluent with the periphragm. The periphragm is proximally strongly perforate. Distally the periphragm is almost nonperforate, and terminates with a ragged margin. The proximal part of the periphragm is directed laterally out from the endophragm, but the periphragm bends forwards distally, and terminates with the periphragm margins pointing inwards, towards the parasulcus. In apical view, the periphragm is wing-shaped. Antapically, in well preserved specimens, the periphragm shows an indentation.
Paratabulation is expressed by denser granulation at the parasutures on the dorsal side. Paraplates 3"", 4"", and 5"" are clearly indicated. Accessory archeopyle sutures indicate paraplates 1"", 2"", and 6"".
The archeopyle is apical, type tA. Operculum free.
Paracingulum is indicated by folds in the endophragm and parasutural granulation.
Parasulcus is not indicated.