- brachiopods
- n. marine invertebrate animal that has hinged shells that close in on tentacles
English contemporary dictionary. 2014.
brachiopods
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brachiopods — n.; n. pl. [Gr. brachys, short; pous, foot] A phylum of relatively small, solitary coelomates enclosed within a bivalved shell and usually attached to the substrate by a pedicle; common called lamp shells; brachiopods have one of the longest and… … Dictionary of invertebrate zoology
Brachiopod — Taxobox name = Brachiopoda fossil range = Cambrian Recent image width = 250px image caption = Living brachiopods regnum = Animalia phylum = Brachiopoda phylum authority = Duméril, 1806 subdivision ranks = Subphyla and classes subdivision = See… … Wikipedia
lamp shells — ▪ animal Introduction also called brachiopod, any member of the phylum Brachiopoda, a group of bottom dwelling marine invertebrates. They are covered by two valves, or shells; one valve covers the dorsal, or top, side; the other covers… … Universalium
Debate about Cambrian Lophotrochozoans — Since 1990 there has been intense debate among paleontologists about the evolution in the Early Cambrian period of the super phylum Lophotrochozoa, which is thought to include the modern molluscs, annelid worms and brachiopods, as well as their… … Wikipedia
Ordovician Period — Interval of geologic time, 490–443 million years ago, the second oldest period of the Paleozoic Era. It follows the Cambrian and precedes the Silurian. During the Ordovician, many of the landmasses were aligned in the tropics. Life was dominated… … Universalium
Ordovician — Period 488.3–443.7 million years ago … Wikipedia
Devonian Period — Interval of geologic time from 417 to 354 million years ago; it was the fourth period of the Paleozoic Era. During the Devonian, a giant continent was situated in the Southern Hemisphere (see Gondwana), and other landmasses were located in the… … Universalium
Bryozoa — Temporal range: Upper Cambrian–Recent[1] … Wikipedia
Halkieria — Taxobox name = Halkieria fossil range = fossil range|533|511|Lower to Middle Cambrian image title = Halkieria evangelista from the Lower Cambrian Sirius Passet, North Greenland regnum = Animalia phylum = ?Mollusca unranked ordo = Halwaxiida… … Wikipedia
Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… … Wikipedia
