RE: first fully terrestrial amphibian

From: Glenn Morton (
Date: Sat Jul 06 2002 - 15:11:48 EDT

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    Hi Shuan,

    You wrote:Friday, July 05, 2002:
    >Expect another AiG broadside soon on why THIS transitional form is not
    >transitional. Thanks for info.

    One might say, expect a mis-interpertation. For every gap in a lineage that
    is filled in, another smaller gap appears to replace it.--think about this.


    for lots of creation/evolution information
    personal stories of struggle

    >-----Original Message-----
    >From: Shuan Rose []
    >Sent: 2:25 PM
    >To: Glenn Morton;
    >Subject: RE: first fully terrestrial amphibian
    >Dear Glenn,
    >Enjoy your weekend.
    >-----Original Message-----
    >From: []On
    >Behalf Of Glenn Morton
    >Sent: Thursday, July 04, 2002 11:24 PM
    >Subject: first fully terrestrial amphibian
    >This week's Nature reports on the discovery of the oldest known
    >animal which
    >has fully formed legs and feet. The report can be found at
    >This creature fits in line with the sequence of creatures leading to
    >amphibians. See
    >I have added the following to that page:
    >"350 MYR ago. Pederpes finneyae- This creature was discovered at Dumbarton,
    >Scotland. It has 5 toes on each foot with the exception of a small relict
    >finger/toe on the forepaw. Because of this, this creature is transitional
    >between the later amphibians and Acanthostega and Ichthyostega discussed
    >above (Carroll, 2002, p. 35). This creature has a primitive
    >stapes, the bone
    >used in hearing and it resembles that of Acanthostega rather than those of
    >the later amphibians. The expanded triangular flair on the ribs resemble
    >Ichthyostega. (Clack, 2002, p. 74). But, unlike the early tetrapods this
    >creature has a "clearly distinguishable metatarsals that are
    >bilaterally and
    >proximodistally asymmetric." (Clack, 2002, p.75). This is a trait which it
    >shares only with the later terrestrially adapted amphibians. Thus, once
    >again, this creature shows intermediate or transitional traits. Those who
    >erroneously claim transitional forms don't exist, haven't looked at the
    >for lots of creation/evolution information
    >personal stories of struggle

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