Archiasterella

Archiasterella; Temporal range: Early Cambrian–Middle Cambrian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	incertae sedis
Class:	†Coeloscleritophora
Order:	†Chancelloriida
Family:	†Chancelloriidae
Genus:	†Archiasterella; Sdzuy, 1969
Species
	A. fletchergryllus Randell et al, 2003 ; A. hirundo Bengston, 1990 (in Bengston et al) ; A. pentactina Sdzuy, 1969 (type);

Achiasterella is a genus of scleritophoran known from the Burgess Shale and earlier () deposits,^[1] and originally described as Chancelloria by Walcott.^[2] The species may represent form taxa rather than true species.^[3]

References[]

^ ^a ^b Randell, R. D.; Lieberman, B. S.; Hasiotis, S. T.; Pope, M. C. (2005). "New Chancelloriids from the Early Cambrian Sekwi Formation with a Comment on Chancelloriid Affinities". Journal of Paleontology. 79: 987. doi:10.1666/0022-3360(2005)079[0987:NCFTEC]2.0.CO;2. ISSN 0022-3360.
^ Bengtson, Stefan; Collins, Desmond (August 2009). "Burgess Shale Chancelloriids – A Prickly Problem" (PDF). In Smith, Martin R.; O'Brien, Lorna J.; Caron, Jean-Bernard (eds.). Abstract Volume. International Conference on the Cambrian Explosion (Walcott 2009). Toronto, Ontario, Canada: The Burgess Shale Consortium (published 31 July 2009). ISBN 978-0-9812885-1-2.
^ Clausen, S.; Álvaro, J. J (2006). "Skeletonized microfossils from the Lower–Middle Cambrian transition of the Cantabrian Mountains, northern Spain" (pdf). Acta Palaeontologica Polonica. 51 (2): 223–238. Retrieved 10 June 2013.

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[Randell2003-1] Randell, R. D.; Lieberman, B. S.; Hasiotis, S. T.; Pope, M. C. (2005). "New Chancelloriids from the Early Cambrian Sekwi Formation with a Comment on Chancelloriid Affinities". Journal of Paleontology. 79: 987. doi:10.1666/0022-3360(2005)079[0987:NCFTEC]2.0.CO;2. ISSN 0022-3360.

[Bengston2009-2] Bengtson, Stefan; Collins, Desmond (August 2009). "Burgess Shale Chancelloriids – A Prickly Problem" (PDF). In Smith, Martin R.; O'Brien, Lorna J.; Caron, Jean-Bernard (eds.). Abstract Volume. International Conference on the Cambrian Explosion (Walcott 2009). Toronto, Ontario, Canada: The Burgess Shale Consortium (published 31 July 2009). ISBN 978-0-9812885-1-2.

[3] Clausen, S.; Álvaro, J. J (2006). "Skeletonized microfossils from the Lower–Middle Cambrian transition of the Cantabrian Mountains, northern Spain" (pdf). Acta Palaeontologica Polonica. 51 (2): 223–238. Retrieved 10 June 2013.

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