Gigantopecten latissimus

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Gigantopecten latissimus
Temporal range: Miocene to Pliocene
Pectinidae - Gigantopecten latissimus.psd.jpg
Gigantopecten latissimus from France. Miocene (abt. 20 Ma)
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Pectinida
Family: Pectinidae
Genus:† Gigantopecten
Species:
†G. latissimus
Binomial name
†Gigantopecten latissimus
(Brocchi,1814)

Gigantopecten latissimus is a species of fossil scallop, a marine bivalve mollusk in the family Pectinidae, the scallops. This species lived during the Miocene and the Pliocene. Fossils have been found in the sediments of France and Spain.

Scallop common name for several shellfish, many are a food

Scallop is a common name that is primarily applied to any one of numerous species of saltwater clams or marine bivalve mollusks in the taxonomic family Pectinidae, the scallops. However, the common name "scallop" is also sometimes applied to species in other closely related families within the superfamily Pectinoidea, which also includes the thorny oysters.

Family is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy; it is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as being the "walnut family".

The Miocene is the first geological epoch of the Neogene Period and extends from about 23.03 to 5.333 million years ago (Ma). The Miocene was named by Charles Lyell; its name comes from the Greek words μείων and καινός and means "less recent" because it has 18% fewer modern sea invertebrates than the Pliocene. The Miocene is preceded by the Oligocene and is followed by the Pliocene.

Description

Gigantopecten latissimus has a shell reaching a height of about 134 millimetres (5.3 in) and a length of about 167 millimetres (6.6 in). This shell is thick and biconvex. The left valve is slightly more convex than the right one. The outer surface of the right valve has six shallow radial ribs that are rectangular in cross-section, while the left valve shows five radial ribs on the external surface. Both valves have distinct concentric growth striae. [1]

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References

  1. ↑ Antonio P. JIMÉNEZ, Julio AGUIRRE, and Pascual RIVAS TAXONOMIC STUDY OF SCALLOPS (PECTINIDAE: MOLLUSCA, BIVALVIA) FROM PLIOCENE DEPOSITS (ALMERÍA, SE SPAIN)
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