Definitions for ichthyornisˌɪk θiˈɔr nɪs

This page provides all possible meanings and translations of the word ichthyornis

Random House Webster's College Dictionary

ich•thy•or•nisˌɪk θiˈɔr nɪs(n.)

  1. any ternlike bird of the extinct Cretaceous genus

    Ichthyornis.

    Category: Paleontology

Origin of ichthyornis:

< Gk ichthy-ichthy - +órnis bird

Webster Dictionary

  1. Ichthyornis(noun)

    an extinct genus of toothed birds found in the American Cretaceous formation. It is remarkable for having biconcave vertebrae, and sharp, conical teeth set in sockets. Its wings were well developed. It is the type of the order Odontotormae

Freebase

  1. Ichthyornis

    Ichthyornis was a genus of toothed seabirds from the Late Cretaceous of North America. Its fossil remains are known from the chalks of Alberta, Alabama, Kansas, New Mexico, Saskatchewan, and Texas, in strata that were laid down in the Western Interior Seaway during the Turonian-Campanian ages, about 95-85 mya. Ichthyornis is a common component of the Niobrara Formation fauna, and numerous specimens of both adult and immature individuals have been found. Ichthyornis has been historically important in shedding light on bird evolution. It was the first discovered prehistoric bird preserved with teeth, and Charles Darwin noted its significance during the early years of the theory of evolution. Ichthyornis remains important today as it is one of the few Mesozoic era birds known from more than a few specimens.

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