Paleontology

1979 Edition

Anellotubulates

  • William A. S. Sarjeant
Reference work entry
DOI: https://doi.org/10.1007/3-540-31078-9_7

Anellotubulates, “ring-tubers,” are tubular structures of microscopic size, creamy white to brownish in color, and composed of a phosphatic material. Their outline may be trumpet shaped to bell shaped, vermiform, or in the form of a parallel-sided or irregularly swollen tube. The outer walls may be roughened or may show annular lines; the inner wall is typically smooth. The size of these structures is in the range of 200–1000 μm (Fig. 1).

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References

  1. McLachlan, I. R., 1973. Problematic microfossils from the Lower Karroo Beds in South Africa, Palaeontol. Africana, 15, 1–21.Google Scholar
  2. Picket, J., and Scheibnerova, V., 1974. The inorganic origin of “anellotubulates,” Micropaleontology, 20, 97–102.Google Scholar
  3. Richardson, G., Gregory, D., and Pollard, J., 1973. Anellotubulates are manufactured “microfossils,” Nature, 246, 347–348.Google Scholar
  4. Wetzel, O., 1967. Rätselhafte Mikrofossilien des Oberlias (ε); Neue Fünde von “Anellotubulaten” O. We. 1957, Neues Jahrb. Geol. Paläontol., Abh., 128, 341–352.Google Scholar

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Copyright information

© Dowden, Hutchinson & Ross, Inc. 1979

Authors and Affiliations

  • William A. S. Sarjeant

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