Hyolithellus

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Hyolithellus
Temporal range: Lower Cambrian – Middle Cambrian[1]
Scientific classification Edit this classification
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

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