Coronacollina acula

Coronacollina acula; Temporal range: Ediacaran, about 555 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	incertae sedis
Genus:	Coronacollina; Clites et al., 2012
Species:	C. acula
Binomial name
	Coronacollina acula; Clites et al., 2012

Coronacollina acula is a multicellular organism from the Ediacaran period resembling the Cambrian 'sponge' Choia. The organism comprised a raised, tri-radially-symmetrical central mound with a central depression and resistant spicules (up to four in articulated fossils), which were resistant — either chitinous or biomineralized — and grew to be 37 cm long.[1]

References

Erica C. Clites, Mary L. Droser & James G. Gehling (2012). "The advent of hard-part structural support among the Ediacara biota: Ediacaran harbinger of a Cambrian mode of body construction". Geology. 40: 307–310. doi:10.1130/G32828.1.

External links

"Oldest organism with skeleton discovered in Australia". ScienceDaily. March 8, 2012.
Charles Choi (March 8, 2012). "Meet Earth's earliest animal with a skeleton". MSNBC.

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[1] Erica C. Clites, Mary L. Droser & James G. Gehling (2012). "The advent of hard-part structural support among the Ediacara biota: Ediacaran harbinger of a Cambrian mode of body construction". Geology. 40: 307–310. doi:10.1130/G32828.1.