The shape of the brachidium is important in determining brachiopod classification. ... Geologic History; Brachiopods have a long geologic history. They have been around since the Cambrian Period. From the Ordovician Period through the Permian Period they were abundant in genera and shear numbers.
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Brachiopod - Wikipedia, the free encyclopedia
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Brachiopods (from Latin brachium , arm + New Latin -poda , foot) are a small phylum of benthic invertebrates. Also known as lamp shells (or lampshells ), " brachs " or Brachiopoda , they ...
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Evolutionary history of brachiopods - Wikipedia, the free encyclopedia
The origin of the brachiopods is uncertain; they either arose from reduction of a multi-plated tubular organism, or from the folding of a slug-like organism with a protective shell on either end. Sinc...
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This study of the development of a rhynchonellid brachiopod has revealed marked differences from that of Terebratella inconspicua (Percival, 1944). These principally concern the origin of the mesoderm and of the lophophore.
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Learn more about brachiopod with a free trial on Britannica.com ... Brachiopod fossils ... History of the brac...
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The growth history of a brachiopod is entombed in its shell, but research on fossil and living brachiopods has generated unanswered questions about these marine invertebrates. Several contributors to Brachiopods Past and Present comment on their differing structures and morphological detail.
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Brachiopod, Brachiopod - Classification, Brachiopod - Evolutionary history, Brachiopod - General description, Brachiopod - Of note, Brachiopod - Reference ... Brachiopod - Evolutionary history...
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A selection of articles related to Brachiopod - Evolutionary history ... A Wisdom Archive on Brachiopod - Evolutionary history ... Brachiopod, Brachiopod - Classification, Brachiopod - Evolutionary history, Brachiopod - General description, Brachiopod - Of note, Brachiopod - Reference...
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A Contribution to the Life-History of the Brachiopod, Terebratella inconspicua Sowerby.* ... The knowledge of brachiopod development is so incomplete that any addition is still to be regarded as valuable, particularly when it covers a long range of embryological changes and metamorphosis.
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