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Swiftopecten djoserus Temporal range: | |
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The holotype specimen of Swiftopecten djoserus (Yoshimura, 2017) from Toyama Pref., Japan, owned by National Museum of Nature and Science, Tokyo (No. PM27195). | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Bivalvia |
Order: | Pectinida |
Family: | Pectinidae |
Genus: | Swiftopecten |
Species: | S. djoserus |
Binomial name | |
Swiftopecten djoserus Yoshimura, 2017 | |
Swiftopecten djoserus '(Yoshimura, 2017) is an extinct species of bivalve belonging to the subclass Pteriomorphia and family Pectinidae that lived during the Late Pliocene, approximately 2.75 Ma. Their two valves have step-like growth ribs.
The species name comes from the Pyramid of Djoser in Saqqara, Egypt; the commarginal constrictions of Swiftopecten djoserus resemble the unique stepwise form of this pyramid.
The Neogene is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period 23.03 million years ago (Mya) to the beginning of the present Quaternary Period 2.58 Mya. The Neogene is sub-divided into two epochs, the earlier Miocene and the later Pliocene. Some geologists assert that the Neogene cannot be clearly delineated from the modern geological period, the Quaternary. The term "Neogene" was coined in 1853 by the Austrian palaeontologist Moritz Hörnes (1815–1868).
The Pliocene is the epoch in the geologic time scale that extends from 5.333 million to 2.58 million years ago. It is the second and most recent epoch of the Neogene Period in the Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch. Prior to the 2009 revision of the geologic time scale, which placed the four most recent major glaciations entirely within the Pleistocene, the Pliocene also included the Gelasian Stage, which lasted from 2.588 to 1.806 million years ago, and is now included in the Pleistocene.
A pika is a small, mountain-dwelling mammal native to Asia and North America. With short limbs, a very round body, an even coat of fur, and no external tail, they resemble their close relative, the rabbit, but with short, rounded ears. The large-eared pika of the Himalayas and nearby mountains lives at elevations of more than 6,000 m (20,000 ft).
Scallop is a common name that encompasses various species of 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.
Ostriches are large flightless birds. They are the heaviest and largest living birds, and lay the largest eggs of any living land animal. With the ability to run at 70 km/h (43.5 mph), they are the fastest birds on land. They are farmed worldwide, with significant industries in the Philippines and in Namibia. Ostrich leather is a lucrative commodity, and the large feathers are used as plumes for the decoration of ceremonial headgear. Ostrich eggs have been used by humans for millennia.
Chesapecten is an extinct genus of scallop known from marine strata from the early Miocene to the early Pleistocene of the Eastern United States.
Ulysses Simpson Grant IV was an American geologist and paleontologist known for his work on the fossil mollusks of the California Pacific Coast. He was the youngest son of Ulysses S. Grant Jr., and a grandson of President Ulysses S. Grant and Senator Jerome B. Chaffee. He was born at his father's farm, Merryweather Farm, in Salem Center, Westchester County, New York. Shortly after his birth, the family moved to San Diego, California.
The Pteriomorphia comprise a subclass of saltwater clams, marine bivalve molluscs. It contains several major orders, including the Arcida, Ostreida, Pectinida, Limida, Mytilida, and Pteriida. It also contains some extinct and probably basal families, such as the Evyanidae, Colpomyidae, Bakevelliidae, Cassianellidae, and Lithiotidae.
Pecten jacobaeus, the Mediterranean scallop, is a species of scallop, an edible saltwater scallop, a marine bivalve mollusc in the family Pectinidae, the scallops.
A gazelle is one of many antelope species in the genus Gazella. This article also deals with the seven species included in two further genera, Eudorcas and Nanger, which were formerly considered subgenera of Gazella. A third former subgenus, Procapra, includes three living species of Asian gazelles.
Clathrodrillia flavidula, common name the javelin turrid, is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
The Pectinoidea are a superfamily of marine bivalve molluscs, including the scallops and spiny oysters.
Chlamys asper is an extinct species of saltwater scallop, a fossil marine bivalve mollusc in the family Pectinidae, the scallops. This species was described by Sowerby in 1847 under the name Pecten asper. The fossils date from the period of the Pliocene to Pleistocene in Malaysia and Miocene in Indonesia.
Flabellipecten flabelliformis is an extinct species of large scallop or saltwater clam, marine bivalve mollusks in the family Pectinidae, the scallops.
Propeamussium is a genus of saltwater clams, marine bivalve mollusks in the order Ostreoida.
Gigantopecten is a genus of fossil scallops, marine bivalve molluscs in the family Pectinidae, the scallops.
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.
Lissochlamys is a genus of scallops, marine bivalve molluscs in the family Pectinidae, the scallops. Species within this genus have a West African and Northern Mediterranean distribution.
Adamussium is a genus of scallops belonging to the family Pectenidae from the Southern Ocean around Antarctica. There are three known species but only one is extant, the Antarctic scallop. Of the two extinct species A. jonkersi is from the Oligocene deposits on King George Island in the South Shetland Islands and the other, A. necopinatum, was described in 2016 from Pliocene marine deposits in the Vestfold Hills of East Antarctica.
Swiftopecten is a genus of bivalves belonging to the family Pectinidae.