A new Jurassic Isoetites (Isoetales) from the Wallowa terrane in Hells Canyon, Oregon and Idaho

S. R. Ash, K. B. Pigg

Research output: Contribution to journalArticle

17 Scopus citations


A new species of quillwort, Isoetites rolandii sp. nov., is described from the Middle Jurassic Coon Hollow Formation. The new Isoetites provides the first floristic evidence for the occurrence of an aquatic or semiaquatic paleoenvironment in the Wallowa terrane. It is also the first documented occurrence of Isoetes-like plants in the Jurassic of W North America. -from Authors

Original languageEnglish (US)
Pages (from-to)1636-1642
Number of pages7
JournalAmerican Journal of Botany
Issue number12
StatePublished - Jan 1 1991
Externally publishedYes


ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Plant Science

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