Cupuladria sp.

Sonar, Mohan A., Pawar, Ravi V. & Wayal, Dnyaneshwar V., 2022, Newly discovered species of cheilostomatid Bryozoa from the Miocene of western Kachchh, Gujarat, India, European Journal of Taxonomy 821, pp. 16-39 : 25-27

Cupuladria sp.

Fig. 6 ; Table 5

Material examined

INDIA • 22 specs; South of Walaram Tirth Dham at Murachbann , Aquitanian, lower Miocene, Kharinadi Formation; 23°39′15″ N, 68°58′02″ E; Jan.–Feb. 2012; Sonar leg.; GIS/B 0471 to 0492 • 11 specs; yellowish siltstone Waghot cliff section and claystone section in Kankawati River south of Vinjhan Village , Burdigalian, lower Miocene, Chhasra Formation; 23°03′10″ N, 69°00′23″ E, Jan.–Feb. 2012; Sonar leg.; GIS/B 0493 to 0503 .

Description

Colony unilaminar, discoidal. Autozooids radially arranged, more or less hexagonal, radiating from near the center ( Fig. 6A ). Ancestrula placed centrally, filled with sediment. Opesia almost longitudinally ovoidal, bordered by a steeply descending, tuberculate cryptocyst. Vibraculum placed at distal periphery of each autozooid, broad, with lateral elevation ( Fig. 6C ). Basal surface concave, coarsely tuberculated ( Fig. 6B ).

Remarks

The present Kachchh material is too poorly preserved to be meaningfully compared with other known species. Therefore, until we get better preserved material clearly showing the basal kenozooids and frontal surface, the species is left in open nomenclature.

Figures

Fig. 6. Cupuladria sp. (GIS/B 0471). A. General view of the colony showing autozooids and vibracula on the distal periphery. B. Basal view of the colony showing more or less irregular inconspicuous tangential grooves with basal kenozooidal pores in the form tubercles. C. Close-up of the colony showing autozooids and vibracula.