Temporal range: 505Ma Burgess Shale
|Species:||† S. rara|
Conway Morris, 1977
The only known species in the species Scolecofurca rara was first described by Conway Morris in 1977 as a possible primitive priapulid, but later shown to belong to the priapulid stem group. Its name is derived from the Greek skolex (worm) and the Latin furca (fork) and rara (infrequent).
Scolecofura's single fossil specimen is 6.5 centimeters in length. The fossil displays a proboscis of constant width, with two 3 millimeter tentacles at the anterior. The tentacles most likely would have functioned for sensory purposes rather than for feeding. The trunk of the organism is lined with annulations separated by 7 millimeters. The specimen is incomplete, and the posterior features of the animal are currently unknown.
- "Scolecofurca rara". Burgess Shale Fossil Gallery. Virtual Museum of Canada. 2011.
- Conway Morris, S (1977). "Fossil priapulid worms". Special papers in Palaeontology 20.
- Harvey, T. H.; Dong, X.; Donoghue, P. C. (2010). "Are palaeoscolecids ancestral ecdysozoans?". Evolution & Development 12 (2): 177–200. doi:10.1111/j.1525-142X.2010.00403.x. PMID 20433458.
- "Scolecofurca rara A worm with a fork-like front end". Royal Ontario Museum. Retrieved 24 February 2012.
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