Archiasterella, Sdzuy, 1969
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publication ID |
https://doi.org/ 10.5281/zenodo.13285795 |
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persistent identifier |
https://treatment.plazi.org/id/A07B87A4-D73C-2816-FF97-6F3080B9FC49 |
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treatment provided by |
Felipe |
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scientific name |
Archiasterella |
| status |
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Archiasterella ? sp.
Fig. 5I.
Material.—One sclerite and a number of isolated marginal rays with broken distal ends from erratic boulders Me33 and 66. Figured specimen, ZPAL V. VI /37S5.
Description.—Four− or five−rayed bilaterally symmetric sclerites with long lateral rays (formula: 4−5+0), which slightly diverge from the basal plane, but with one of them recurved backwards, to become almost perpendicular to the base. Outer surface of the rays are rough or provided with weak tubercles. Basal facet is relatively large and without visible sutures between sclerite rays. Basal foramina are circular to elliptical in shape and sparsely arranged (displaced distally from the centre of the sclerite) on the basal facet.
Remarks.—A number of isolated internal moulds of strongly recurved rays may also represent the median ray of this species.
Occurrence.—Allochthonous Early Cambrian (Botomian) boulders (Me33 and 66), King George Island, Antarctica.
| ZPAL |
Zoological Institute of Paleobiology, Polish Academy of Sciences |
| V |
Royal British Columbia Museum - Herbarium |
| VI |
Mykotektet, National Veterinary Institute |
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