Associated conchs and opercula of Triplicatella disdoma (Hyolitha) from the early Cambrian of South Australia
2014 (English)In: Alcheringa, ISSN 0311-5518, Vol. 38, no 1, 148-153 p.Article in journal (Refereed) Published
Internal moulds of complete shells, including conch and associated opercula, of the hyolith Triplicatella disdoma from Cambrian Series 2, Stages 3-4 of South Australia are described. The conch of T. disdoma is shown to be narrow and cone-shaped, and with a rounded triangular cross-section. The conch shows a gentle dorsal curvature in lateral view. The fossils lack evidence of helens, and the operculum was smaller than the apertural diameter of the conch and could be withdrawn a short distance into the conch. Triplicatella was probably closely related to orthothecid hyoliths.
Place, publisher, year, edition, pages
2014. Vol. 38, no 1, 148-153 p.
Hyolitha, Orthothecida, shell articulation, early Cambrian
IdentifiersURN: urn:nbn:se:uu:diva-227950DOI: 10.1080/03115518.2014.843381ISI: 000336002600008OAI: oai:DiVA.org:uu-227950DiVA: diva2:732993