The youngest Devonian record of “Housean pits” in ammonoids

Authors

  • Michał Rakociński Faculty of Earth Sciences, University of Silesia, Będzińska 60, PL-41-200 Sosnowiec, Poland

DOI:

https://doi.org/10.7306/gq.1029

Keywords:

Ammonoids, parasite, pearl formation, "Housean pits", Upper Devonian, Poland.

Abstract

An unusual occurrence of parasitic “Housean pits” in internal mould of ammonoid specimen referred to as Felisporadoceras cf. subvaricatum (Sobolew) from Middle Famennian of Poland are described. Hitherto the youngest representatives of goniatites showing a pitting on the internal moulds were known from the Middle Devonian (lower Givetian), thus, most probably the presented material constitutes the youngest world record of this phenomenon. 

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Published

2012-06-12

Issue

Vol. 56 No. 2 (2012)

Section

Articles

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