@inbook{3508ff965b35446bba096e1082c34b91,
title = "An enigmatic univalve macromollusc from the lower Cambrian (Series 2, Stage 3) Heatherdale Shale, South Australia",
abstract = "Fossils have been reported sporadically throughout the lower Cambrian Heatherdale Shale (Normanville Group), Fleurieu Peninsula, South Australia, but there has been little taxonomic documentation of faunas. Problematic cap -shaped fossils from the lower member of the formation originally attributed to Helcionella are herein formally described as a new genus and species, Tribelopoma amygdala gen. et sp. nov. The asymmetric valves with accretionary growth and probable calcium carbonate composition support a molluscan affinity, and comparisons with other enigmatic cap -shaped taxa suggest a possible helcionelloid affinity. Taphonomic processes related to early diagenesis provide evidence of a rigid shell, prone to brittle fracture during compaction.",
keywords = "Mollusca, cap-shaped, Fleurieu Peninsula, Normanville Group, Helcionelloida, taphonomy",
author = "Sarah Jacquet and Jago, {James B.} and Brock, {Glenn A.}",
year = "2016",
language = "English",
isbn = "9780949466471",
series = "Australasian Palaeontological Memoir",
publisher = "Australasian Palaeontologists",
pages = "21--30",
editor = "Laurie, {J. R.} and Percival, {I. G.} and Jago, {J. B.} and Paterson, {J. R.} and Brock, {G. A.}",
booktitle = "Cambro-Ordovician studies VI",
}