Sigillaroid

From Wiktionary, the free dictionary
Jump to navigation Jump to search

English[edit]

Alternative forms[edit]

Etymology[edit]

From Sigillaria +‎ -oid.

Adjective[edit]

Sigillaroid (not comparable)

  1. Of, pertaining to, or having characteristics of the genus Sigillaria of extinct trees.
    • 1860, J. W. Dawson, On a Terrestrial Mollusk, a Chilognathous Myriapod, and fome New Species of Reptiles, from the Coal-Formation of Nova Scotia: Proceedings of the Geographical Society: The Quarterly Journal of the Geological Society of London, page 269:
      On microscopic examination, this mineral charcoal displays elongated wood-cells, some of them with the pores or discs in several rows, as in many Sigillaroid trees.
    • 1868, John William Dawson, Acadian Geology[1], page 191:
      It is, however, possible that this older forest, represented by coaly stumps, may have consisted of Sigillaroid trees.
    • 1873, Philosophical Transactions of the Royal Society of London, volume 162, page 227:
      In the latter plant, now well known to be a Sigillaroid root, we find no inner or medullary cylinder of vessels.
    • 1907, Gas Journal, volumes 97-98, page 345:
      Further, in the underclays it is quite a common thing to find a mass of clay literally crammed with ribbon-shaped markings of the roots of Sigillaroid plants.

Synonyms[edit]