Portalia

Portalia mira is a fossil from the Burgess Shale that was originally described by Charles Walcott as a holothurian echinoderm. A later interpretation by F. Madsen in 1957 posits P. mira as a sponge.[1][2]

Portalia
Temporal range:
Fossil holotype
Scientific classification
Kingdom: Animalia
Phylum: incertae sedis
Genus: †Portalia
Species:
†P. mira
Binomial name
†Portalia mira

References
  1. MADSEN, F. J. 1957. On Walcott's supposed Cambrian holothurians. Journal of Paleontology, 31(1): 281-286.
  2. Durham, J. W. (1974). "Systematic Position of Eldonia ludwigi Walcott". Journal of Paleontology. 48 (4): 750–755. JSTOR 1303225.


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