Scientific name Fasciculus vesanus Rank Species | ||
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Genus FasciculusSimonetta & Delle Cave, 1978 Similar Xanioascus, Ctenorhabdotus, Sinoascus, Maotianoascus, Stromatoveris | ||
Medial longitudinal fasciculus pathway
Fasciculus vesanus is an extinct species of stem-group ctenophores, known from the Canadian Burgess Shale of British Columbia. It is dated to 515 to 505 million years ago and belongs to middle Cambrian strata.
Contents
The species is remarkable for its two sets of long and short comb rows, not seen in similar form elsewhere in the fossil record or among modern species.
Fasciculus gracilis
References
Fasciculus Wikipedia(Text) CC BY-SA