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Cephalic Homologies. A Contribution to the Determination of the Ancestry of Vertebrates

✍ Scribed by Charles Sedgwick Minot


Book ID
123833749
Publisher
University of Chicago Press
Year
1897
Tongue
English
Weight
622 KB
Volume
31
Category
Article
ISSN
0003-0147

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An episode in the ancestry of vertebrate
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Human beings have a natural interest in their origins. We are vertebrates, within the craniates, within the chordates. Fossils indicate how the chordates separated, in early Palaeozoic times or before, from their latest common ancestor with the echinoderms. The most primitive known fossil chordates