Improved wet splitter for micropalaeontological analysis, and assessment of uncertainty using data from splitters

Laurie M. Charrieau, Lene Bryngemark, Ingemar Hansson, Helena L. Filipsson

Research output: Contribution to journalArticlepeer-review


Analyses of foraminiferal assemblages have often been implemented on dry samples, which are easy to split. In some cases, the wet-picking method is preferred as it allows the preservation of more foraminiferal forms and facilitates the picking of live foraminifera. However, the increased execution time needed for wet picking may cause micropalaeontologists to refrain from employing it in a routine way. Here we present an improved and cost-effective wet splitter (including a 3-D printing file) for micropalaeontological samples aimed to reduce picking time while keeping information loss to a minimum. We demonstrate small sample losses as well as statistical consistency across splits. We show that the time saved picking a subset will always be larger than the relative increase in statistical uncertainty.

Original languageEnglish
Pages (from-to)191-194
Number of pages4
JournalJournal of Micropalaeontology
Issue number1
Publication statusPublished - 2018 Jan 17

Subject classification (UKÄ)

  • Geology

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