|Reconstruction of Ottoia prolifica.|
|The anterior portion of Ottoia, illustrating annulation and the eversible proboscis. From Smith et al. (2015)|
|Stem group:||Priapulida (?)|
Ottoia is a stem-group archaeopriapulid worm known from Cambrian fossils. Although priapulid-like worms from various Cambrian deposits are often referred to Ottoia on spurious grounds, the only clear Ottoia macrofossils come from the Burgess Shale of British Columbia, which was deposited . Microfossils extend the record of Ottoia throughout the Western Canada Sedimentary Basin, from the mid- to late- Cambrian. A few fossil finds are also known from China.
Powered by 654 easy search