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Terebratalia transversa

PRICE :
14,50
  • Product Code: SP22845

Description

Origin : California (U.S.A.)


mm 39, only a piece as in pictures.
Family:Terebrataliidae

The phylum of brachiopods consists of marine invertebrates, benthic, sessil, sospensivorous and with bilateral symmetry. The plane of symmetry is perpendicular to the commissure of the valves, which are divided into a peduncular valve (or ventral) and a brachial (or dorsal), generally smaller. They are inequivalves and equilateral.
They look, similar to the phylum of bivalve molluscs, is simply due to convergent evolution, having no direct relationship with them.
Nowadays these animals are scarce because they live in "refuge areas", ie areas with low population and competition. They were however very common in the Paleozoic, then, following the mass extinction at the Permian-Triassic, have migrated into deeper waters.



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