Archaeopriapulida

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Archaeopriapulida
Temporal range: Cambrian Stage 3–Middle Cambrian
Reconstruction of the archaeopriapulid Ottoia
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Stem group: Priapulida (?)
Class: †Archaeopriapulida
Species[1][2]

See text

Archaeopriapulida is a group of

priapulid worms known from Cambrian lagerstätte.[3] The group is closely related to, and very similar to, the modern Priapulids.[4] It is unclear whether it is mono- or polyphyletic.[5] Despite a remarkable morphological similarity to their modern cousins,[6] they fall outside of the priapulid crown group, which is not unambiguously represented in the fossil record until the Carboniferous.[7] In addition to well-preserved body fossils, remains of several archaeopriapulid taxa are known to have been preserved primarily as organic microfossils, such as isolated scalids and pharyngeal teeth.[8][9][10] They are probably closely related or paraphyletic to the palaeoscolecids; the relationship between these basal worms is somewhat unresolved.[5]

Species

References

  1. S2CID 55337080
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  2. S2CID 55337080
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  3. doi:10.1146/annurev.es.10.110179.001551
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  4. S2CID 85091685
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  5. ^
    S2CID 88647544
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  6. ^
    doi:10.1080/00241160410005088
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  7. S2CID 39772232
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  8. hdl:2381/38663
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  9. ISSN 0031-0239
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  10. ISSN 1432-234X
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  11. ISBN 9783110272536
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  12. S2CID 205095219
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  13. ^
    S2CID 85627132
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  14. S2CID 84288209
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  15. S2CID 134180194
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  16. S2CID 134539597
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  17. doi:10.1016/j.geobios.2003.04.004
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  18. S2CID 84891981
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  19. S2CID 128594728
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  20. S2CID 86584623.[permanent dead link
    ]
  21. ^ a b Haaramo, Mikko (2003). "Scalidophora – †palaeoscolecids, priapulids, mud dragons and brush heads". Mikko's Phylogeny Archive. Archived from the original on 2023-04-22.
  22. doi:10.3140/bull.geosci.1238
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