This article is about the term used in geology and paleontology. For the genus of moth, see Lista (moth).
Paracme, as used in biostratigraphy, is a term that describes the interval of temporary disappearance or absence of a taxon. It defines the interval between when a taxon temporarily disappears and when it reappears in biostratigraphical observation.[1] Paracme Base "PB" (lowest occurrence) is used to denote the start of the disappearance, and Paracme Top "PT" (highest occurrence) denotes the reappearance of the taxon.
^Di Stefano, Agata; D’Andrea, Natale Maria; Distefano, Salvatore; Urso, Salvatore; Borzì, Laura; Baldassini, Niccolò; Barbagallo, Viviana (February 2023). "Calcareous Nannofossil Biostratigraphy and Biochronology at ODP Site 1123 (Offshore New Zealand): A Reference Section for the Last 20 Myr in the Southern Ocean". Journal of Marine Science and Engineering. 11 (2): 408. doi:10.3390/jmse11020408. ISSN 2077-1312.
Paracme, as used in biostratigraphy, is a term that describes the interval of temporary disappearance or absence of a taxon. It defines the interval between...
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