Oldhamia

Oldhamia Temporal range: Cambrian Fortunian–Cambrian "Stage 5" PreЄ Є O S D C P T J K Pg N
Trace fossil classification
Ichnogenus:	Oldhamia Forbes, 1848
Ichnospecies
O. radiata Forbes, 1848 O. antiqua Forbes, 1848 O. flabellata Aceñolaza et Durand, 1973 O. curvata Lindholm et Casey, 1990 O. geniculata Seilacher, Buatois et Mangano, 2005 O. alata Seilacher, Buatois et Mangano, 2005

Oldhamia is an ichnogenus describing burrows produced by worm-like organisms mining underneath microbial mats. It was common from the Early Cambrian deep-water deposits.^[1][2]

The Ediacaran species Oldhamia recta are body fossils of a rod-like organism, rather than ichnofossils.^[3]

The Ordovician Oldhamia pinnata and Carboniferous-Permian Oldhamia fimbriata were mentioned without any ichnotaxonomical formalization, and therefore are nomina nuda.

It was named after the geologist Thomas Oldham.

See Also

List of Ediacaran genera

References

1. Seilacher, Adolf; Luis A. Buatoisb; M. Gabriela Mángano (2005-10-07). "Trace fossils in the Ediacaran–Cambrian transition: Behavioral diversification, ecological turnover and environmental shift". Palaeogeography, Palaeoclimatology, Palaeoecology 227 (4): 323–356. doi:10.1016/j.palaeo.2005.06.003.
2. Herbosch, A.; Verniers, J. (2011). "What is the biostratigraphic value of the ichnofossil Oldhamia for the Cambrian: a review". Geologica Belgica 14 (3–4): 229–248.
3. Tacker, R.C.; Martin, A.J.; Weaver, P.G.; Lawver, D.R. (2010). "Trace fossils versus body fossils: Oldhamia recta revisited" (PDF). Precambrian Research 178 (1–4): 43–50. doi:10.1016/j.precamres.2010.01.008.