Goniodiscaster H.L. Clark 1909

Mah, Christopher L., 2018, New genera, species and occurrence records of Goniasteridae (Asteroidea; Echinodermata) from the Indian Ocean, Zootaxa 4539 (1), pp. 1-116 : 39

publication ID	https://doi.org/10.11646/zootaxa.4539.1.1
publication LSID	lsid:zoobank.org:pub:2C72727B-79C5-407F-BD92-B12F98196800
DOI	https://doi.org/10.5281/zenodo.5990742
persistent identifier	https://treatment.plazi.org/id/193787A0-FFC4-FFB9-F4CB-FB6C45B5CCE9
treatment provided by	Plazi (2019-03-28 16:04:18, last updated 2024-11-28 19:27:13)
scientific name	Goniodiscaster H.L. Clark 1909
status

Treatment

Goniodiscaster H.L. Clark 1909 View in CoL

H.L. Clark 1909: 110; Döderlein 1935: 74; A.M. Clark 1993: 300 (checklist); Gates & Rowe 1995: 99.

Diagnosis. Skeleton robust, Body stellate, marginal plates form distinct frame around edge ( Fig. 15A View FIGURE 15 ). Abactinal plates abutted, covered by continuous granular cover ( Fig. 15B View FIGURE 15 ). Interradial regions with paired abactinal plates forming distinct “fold” in each interradius ( Fig. 15B View FIGURE 15 ). Spines and/or tubercles present or absent. Marginal and actinal surface covered by granular cover. Pedicellariae absent.

Comments. It is argued herein that Goniodiscaster shares more characters with the Goniasteridae , specifically the Anthenoidinae , such as Anthenoides , and similar genera such as Ogmaster, Stellaster and Stellasteropsis . Goniodiscaster shares the more flattened body form, but also the interradial paired plates present in the interradii, and the distinct “fold” created by their contact ( Fig. 15B View FIGURE 15 ) which I argue are synapomorphies for this group. A full summary of this group is premature and beyond the scope of this treatment.

Goniodiscaster View in CoL was originally assigned to the Goniasteridae View in CoL by H.L. Clark (1909) and retained there by Fisher (1919) and Clark and Rowe (1971). Döderlein (1935) moved Goniodiscaster View in CoL to the Oreasteridae View in CoL , where it has remained in most contemporary summary treatments and checklists (e.g., Spencer & Wright 1966, A.M. Clark 1993, Gates & Rowe 1995).

References

Clark, H. L. (1909) Notes on some Australian and Indo-Pacific echinoderms. Bulletin of the Museum of Comparative Zoology, Harvard, 52, 107 - 135.

Clark, A. M. & Rowe, F. W. E. (1971) Monograph of Shallow-water Indo-West Pacific Echinoderms. British Museum (Natural History) Publications 690. British Museum (Natural History), London, ix + 238, 31 pls.

Clark, A. M. (1993) An index of names of recent Asteroidea-Part 2: Valvatida. E chinoderm Studies, 4, 187 - 366.

Doderlein, L. (1935) Die Asteriden der Siboga-Expedition. III. Oreasteridae. Siboga-Expedition, 46 (2), 71 - 110, pls. 15 - 20. https: // doi. org / 10.5962 / bhl. title. 11319

Fisher, W. K. (1919) Starfishes of the Philippine seas and adjacent waters. Bulletin of the United States National Museum, 3 (100), 1 - 547, 156 pls. https: // doi. org / 10.1126 / science. 50.1293.348

Rowe, F. W. E. & Gates, J. (1995) Echinodermata. In: Wells, A. (Ed.), Zoological Catalogue of Australia. Fol. 33. CSIRO, Melbourne, pp. 1 - 510. https: // doi. org / 10.1086 / 419606

Spencer, W. K. & Wright, C. K. (1966) Asterozoans, Part U: Echinodermata. In: Moore, R. C. (Ed.), Treatise on Invertebrate Paleontology, 3 (1). University of Kansas Press, Lawrence, 4 - 107. [U 4 - U 107]

Figures

FIGURE 15. Goniodiscaster aegis n. sp. Holotype, USNM E51097. R=4.7, r=1.9 cm. A. Abactinal surface. Scale bar=1.0 cm. B. Closeup of abactinal surface with white box around interradial paired plates and “fold”. Scale bar=0.3 cm. C. Interradius showing superomarginal and inferomarginal plates.Scale bar=0.5 cm. D. Actinal surface. Scale bar=1.0 cm. E. Closeup of furrow and adambulacral spines. Scale bar =0.3 cm.