In Depth Archiasterella is a genus of primitive animal that lived during the Cambrian. Further Reading - Unter- und mittelkambrische Porifera (Chancelloriida und Hexactinellida). Palaeontologische Zeitschrift 43(3/4):115-147. - K. Sdzuy. - 1969.
In Depth Allonnia is a genus of coeloscleritophoran that had a near global distribution. Further Reading - Shelly Fossils from the Early Cambrian (Toyonian) Wirrealpa, Aroona Creek, and Ramsay Limestones of South Australia. - Journal of Paleontology 67 (5): 758–787. - G. A. Brock & B. J. Cooper - 1993. – New well-preserved scleritomes of … Read more