QUADRIVALVES Meaning and
Definition
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Quadrivalves is a term used to describe organisms that possess a specific type of shell or exoskeleton structure, characterized by four distinct valves or plates. The term is typically used in reference to certain types of ancient marine invertebrates, such as brachiopods and bryozoans, which are classified under the phylum Lophophorata.
These organisms have a unique four-fold symmetry, with two semi-circular valves on the top and bottom, and two half-shell valves on the sides. The valves are hinged together, allowing the organism to open and close its shell.
Quadrivalves are typically composed of a hard, calcareous or chitinous material, providing protection and support to the soft tissues within. The shell structure plays a crucial role in providing stability, enabling these organisms to maintain their shape and survive in various aquatic habitats.
The term "quadrivalves" is derived from the Latin words "quadri" meaning four, and "valva" meaning valve. This term is specifically used to distinguish these organisms from other species that may possess a different number or arrangement of valves.
Quadrivalves are often studied by paleontologists and evolutionary biologists as they provide valuable insights into ancient ecosystems and the evolution of shell structures. They are considered important fossil specimens, with their presence indicating past marine environments and geological time periods.
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In arch., a door with four folds or leaves.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for QUADRIVALVES
- 1uadrivalves
- 2uadrivalves
- wuadrivalves
- auadrivalves
- qyadrivalves
- qhadrivalves
- qjadrivalves
- qiadrivalves
- q8adrivalves
- q7adrivalves
- quzdrivalves
- qusdrivalves
- quwdrivalves
- quqdrivalves
- quasrivalves
- quaxrivalves
- quacrivalves
- quafrivalves
- quarrivalves
- quaerivalves
Etymology of QUADRIVALVES
The word "quadrivalves" is derived from the Latin words "quattuor" meaning "four" and "valva" meaning "fold" or "door". In Latin, "valva" originally referred to the folding doors (or gates) with two parts, which is also the origin of the English word "valve".
The prefix "quadri-" is derived from the Latin word "quattuor", which means "four" and is used to indicate the number four. In the case of "quadrivalves", the prefix "quadri-" is added to "valva" to indicate that there are four folds or doors.
In the context of zoology, "quadrivalves" refers to a group of mollusks, particularly bivalve mollusks, which have four shell valves.
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