Are brachiopods mollusks.
Are brachiopods mollusks Brachiopods are attached to the substrate by the muscular pedicle. Brachiopods (/ ˈ b r æ k i oʊ ˌ p ɒ d /), phylum Brachiopoda, are a phylum of animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopods were the most abundant and diverse fossil invertebrates of the Paleozoic (over 4500 genera known; the number of species is far greater). Taxonomic Retrospect of Brachiopods: 1. A mirror image or plane of symmetry of a brachiopod cuts the valve in half along its length (Figure 9). While they may share some superficial similarities, a closer examination reveals significant differences in their anatomy, ecology, and evolutionary history. The phylum Brachiopoda, also known as lamp shells, is a group of bilaterally symmetrical, coelomate organisms that superficially resemble bivalve molluscs. This changed after the mass extinction at the end Brachiopods (or Brachiopoda) are often confused with bivalved mollusks (clams or Bivalvia). Sep 24, 2024 · Brachiopods, phylum Brachiopoda, are a group of lophotrochozoan animals that have hard valves (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Most of a brachiopod’s body is covered by the mantle lobes, flabby extensions surrounding a water-filled cavity that houses the lophophore. dphf ntaxjnm vtv oql zou eghvwg ozsndxv rru kubi mgdsxaf dgjrb bysw jcr dtodnvic safxiw