Aragonite crystals within codiacean algae: Distinctive morphology and sedimentary implications

Ronald D. Perkins, Michael D. Mckenzie, Patricia Lurie Blackwelder

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Morphologic studies of single crystals of aragonite within Codiacean algae reveal characteristic crystal forms produced by two distinctly different modes of calcification. Diagnostic serrated crystals (1 micrometer in length) of aragonite originating within the extracellular sheaths of capitular filaments are incorporated into modern lime sediments and may serve as effective tracers for particles of algal origin. Intracellular calcification within Penicillus dumetosus, previously unreported, is represented by doubly terminated aragonite crystals ranging in size from 48 to 160 micrometers.

Original languageEnglish (US)
Pages (from-to)624-626
Number of pages3
JournalScience
Volume175
Issue number4022
DOIs
StatePublished - 1972
Externally publishedYes

ASJC Scopus subject areas

  • General

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