Salterella

Salterella
Temporal range: Early Cambrian
S. pulchella[1]
Scientific classification
Kingdom:Animalia (?)
Phylum:†Agmata
Family:†Salterellidae
Genus:†Salterella
Billings, 1861[2]
Type species
†Salterella rugosa
(= Serpulites maccullochi Murchison, 1859)
Billings, 1861
Species
  • †S. conulata Clark, 1924
  • †S. maccullochi (Murchison, 1859)

Salterella is an enigmatic Cambrian genus with a calcareous shell that appears to be septate,[3] but is rather filled with stratified laminar deposits.[4] Its shell contains grains of sediment, which are obtained selectively (with a preference for denser grains) by a manner also observed in foramanifera.[5]

The genus is known from several locations, such as Newfoundland and Labrador and Quebec in Canada,[6][7] the Scottish Highlands[8] and Argentina.[9]

Volborthella was formerly placed in synonymy with Salterella by Ellis L. Yochelson in 1983[8]; however, Volborthella was later accepted as a separate genus again by Yochelson & Kisselev in 2003.[10] Both genera are currently placed in the Salterellidae family in the phylum Agmata.

Species

Two or three species of Salterella are known:

  • †Salterella conulata Clark, 1924[6]
  • †Salterella maccullochi (Murchison, 1859) (Synonyms: S. mexicana Lochman, 1952; S. expansa Poulsen, 1927; S. rugosa Billings, 1861, Serpulites maccullochi Murchison, 1859)[8][9]
  • †Salterella pulchella Billings, 1861[2] (poorly known?)

Former species

See also

References

  1. 1 2 Charles Doolittle Walcott (1886). Second contribution to the studies on the Cambrian faunas of North America. 30 of Geological Survey bulletin. Govt. Print. Off.,. p. 369.
  2. 1 2 3 Billings, E.H. (1861). "On some new or little known species of lower Silurian fossils from the Potsdam Group (Primordial zone)". Palaeozoic Fossils. 1 (1): 1–18.
  3. ↑ Lipps, J. H.; Sylvester, A. G. (1 March 1968). "The Enigmatic Cambrian Fossil Volborthella and Its Occurrence in California". Journal of Paleontology. 42 (2): 329–336. ISSN 0022-3360. JSTOR 1302218.
  4. ↑ Yochelson, E. L.; Flower, R. H.; Webers, G. F. (1973), "The bearing of the new Late Cambrian monoplacophoran genus Knightoconus upon the origin of the Cephalopoda", Lethaia, 6 (3): 275–309, doi:10.1111/j.1502-3931.1973.tb01199.x
  5. ↑ Peel, John S. (2016). "Anatase and Hadimopanella selection by Salterella from the Kap Troedsson formation (Cambrian Series 2) of North Greenland". GFF. 139 (1): 70–74. doi:10.1080/11035897.2016.1227365.
  6. 1 2 Yochelson, Ellis L. (1970). "On The Early Cambrian Fossil Salterella conulata Clark in Eastern North America" (PDF). United States Geological Survey Professional Paper. 683-B: 1–10.
  7. ↑ Skovsted, Christian B. (2003). "Unusually preserved Salterella from the Lower Cambrian Forteau Formation of Newfoundland". GFF. 125 (1): 17–22. doi:10.1080/11035890301251017.
  8. 1 2 3 Yochelson, E.L. (1983). "Salterella (Early Cambrian: Agmata) from the Scottish Highlands" (PDF). Palaeontology. 26: 253–260.
  9. 1 2 Astini, Ricardo A.; Thomas, William A.; Yochelson, Ellis L. (2004). "Salterella in the Argentine Precordillera: an Early Cambrian palaeobiogeographic indicator of Laurentian affinity". Palaeogeography, Palaeoclimatology, Palaeoecology. 213 (1–2): 125–132. doi:10.1016/j.palaeo.2004.07.008.
  10. ↑ Yochelson, Ellis L.; Kisselev, Gennadii N. (2003). "Early Cambrian Salterella and Volborthella (Phylum Agmata) re‐evaluated". Lethaia. 36 (1): 8–20. doi:10.1080/00241160310001254.
  11. ↑ Yochelson, Ellis L. (1968). "On the nature of Polylopia" (PDF). United States Geological Survey Professional Paper. 593-F: 1–7.


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