Hyolithellus

Hyolithellus; Temporal range: Lower Cambrian – Middle Cambrian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Stem group:	Annelida
Genus:	†Hyolithellus; Billings, 1871

Hyolithellus is a conical tubular fossil from the Cambrian, originally considered a hyolith but since reinterpreted tentatively as an annelid worm.^[1]

Its circular, thin (15–150 μm), originally phosphatic tube gets wider along its long, undulating, annulated length.^[1]

References

^ ^a ^b ^c Christian B. Skovsted & John S. Peel (2011). "Hyolithellus in life position from the Lower Cambrian of North Greenland". Journal of Paleontology. 85 (1): 37–47. doi:10.1666/10-065.1. S2CID 129124366.

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[skovsted-1] Christian B. Skovsted & John S. Peel (2011). "Hyolithellus in life position from the Lower Cambrian of North Greenland". Journal of Paleontology. 85 (1): 37–47. doi:10.1666/10-065.1. S2CID 129124366.

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