Turcutheca
Temporal range:
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Superphylum: Lophotrochozoa
Class: Hyolitha
Order: Orthothecida (?)
Family: Circothecidae
Genus: Turcutheca

Turcutheca is a Tommotian (Early Cambrian) genus of shelly fossil whose affinities are uncertain, generally considered as an orthothecid hyolith[2] (which would make it a brachiopod,[3] but also resembling the ellesmeroceratids (early cephalopods).[1]

References

  1. 1 2 Dzik, J. (2010). "Brachiopod Identity of the Alleged Monoplacophoran Ancestors of Cephalopods". Malacologia. 52 (1): 97–113. doi:10.4002/040.052.0107.
  2. e.g. Brasier, M. D. (1986). The succession of small shelly fossils (especially conoidal microfossils) from English Precambrian–Cambrian boundary beds. Geological Magazine, 123(3), 237–256. doi:10.1017/S0016756800034737
  3. Moysiuk, Joseph; Smith, Martin R; Caron, Jean-Bernard (2017). "Hyoliths are Palaeozoic lophophorates" (PDF). Nature. 541 (7637): 394–397. Bibcode:2017Natur.541..394M. doi:10.1038/nature20804. PMID 28077871.


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