TRIGONIA Meaning and
Definition
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Trigonia is a term that refers to a genus of extinct bivalve mollusk that existed during the Mesozoic era, specifically during the Jurassic and Cretaceous periods. The name "Trigonia" is derived from the Greek word "trígonon," meaning triangle, which describes the shape of the shell of these mollusks.
These organisms were characterized by their triangular or pear-shaped shells, which possessed distinct ridges or ridges with a network-like pattern. The shells of Trigonia were typically thick and robust, providing protection and support to the soft body of the animal that inhabited it. Trigonia shells were often found as fossils in various marine environments, such as shallow seas and lagoons.
The anatomy of Trigonia consisted of two hinged shells, or valves, which were held together by a ligament and controlled by adductor muscles. These bivalves were filter feeders, using specialized gills to extract plankton and organic matter from the water. Trigonia had a foot that they would use to burrow into sediment or attach themselves to hard surfaces.
The genus Trigonia is important in paleontological studies as their fossils are abundant and widely distributed across different continents. The unique shell morphology of Trigonia shells has made them useful for biostratigraphy and determining the age of sedimentary rocks. Their presence in certain rock layers can indicate the relative geologic time period in which they lived.
Overall, Trigonia is an extinct genus of bivalve mollusks that lived millions of years ago, leaving behind a rich fossil record that helps scientists understand the ancient marine environments and ecosystems of the Jurassic and Cretaceous periods.
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In geol., a bivalve of the Oolite and Chalk-so called from its three-cornered shape, and thick, tuberculated, ribbed shell-the horse-beads of the Portland quarrymen.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for TRIGONIA
- rrigonia
- frigonia
- grigonia
- yrigonia
- 6rigonia
- 5rigonia
- teigonia
- tdigonia
- tfigonia
- ttigonia
- t5igonia
- t4igonia
- trugonia
- trjgonia
- trkgonia
- trogonia
- tr9gonia
- tr8gonia
- trifonia
- trivonia
Etymology of TRIGONIA
The word "Trigonia" is derived from the Greek roots "tri-" meaning "three" and "gonia" meaning "angle" or "corner". This is because Trigonia is a genus of marine bivalve mollusks that typically have triangular or trapezoidal shells with three prominent angles or corners. The name was coined by French zoologist André Étienne d'Audebert de Férussac in the early 19th century to describe this distinctive characteristic of the genus.
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