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Silurian vs Acanthodian - What's the difference?

silurian | acanthodian |

As adjectives the difference between silurian and acanthodian

is that silurian is (geology) of a geologic period within the paleozoic era; comprises the llandovery, wenlock, ludlow and pridoli epochs from about 439 to 409 million years ago while acanthodian is pertaining to acanthodii.

As a proper noun silurian

is (geology) the silurian period.

As a noun acanthodian is

(zoology) a member of a group of extinct fish (acanthodii) that existed from the silurian to the permian periodbrown, lesley, ed the shorter oxford english dictionary 5th oxford: oxford university press, 2003.

silurian

English

(wikipedia Silurian)

Adjective

(en adjective)
  • (geology) Of a geologic period within the Paleozoic era; comprises the Llandovery, Wenlock, Ludlow and Pridoli epochs from about 439 to 409 million years ago.
  • (archaeology) Of or related to the Silures, a pre-Roman British tribe.

    • Proper noun

    (en proper noun)
  • (geology) The Silurian period.

    • See also

    *

    acanthodian

    English

    (Acanthodii)

    Alternative forms

    * acanthodean

    Noun

    (en noun)
  • (zoology) A member of a group of extinct fish (Acanthodii) that existed from the Silurian to the Permian period.Brown, Lesley, ed. The Shorter Oxford English Dictionary. 5th. Oxford: Oxford University Press, 2003.
  • * 2009 January 15, Martin D. Brazeau, “The braincase and jaws of a Devonian 'acanthodian' and modern gnathostome origins”, Nature Volume 457 No. 7227, doi:10.1038/nature07436:?
    • The emerging picture of acanthodian (and perhaps placoderm) paraphyly does not overturn a general consensus about gnathostome interrelationships.

    Adjective

    (-)
  • Pertaining to Acanthodii.

    • References