| Sagisma Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Alismatales |
| Family: | Alismataceae |
| Genus: | † Sagisma Nikitin |
| Species | |
See text. | |
Sagisma is a fossil genus of aquatic plants. It includes two species distributed in Oligocene and Miocene deposits of western Siberia. [1]
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 Scottish geologist Charles Lyell; the name comes from the Greek words μείων and καινός and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene.
The water-plantains (Alismataceae) are a family of flowering plants, comprising 20 genera and 119 species. The family has a cosmopolitan distribution, with the greatest number of species in temperate regions of the Northern Hemisphere. Most of the species are herbaceous aquatic plants growing in marshes and ponds.
Caldesia is a genus of aquatic plants. It includes three living species widespread across Europe, Asia, Africa and Australia. The genus "has an extensive Oligocene through Pleistocene fossil record in Eurasia," and has been found in fossil strata of the United States as well. Ten fossil species have been described for the genus.
Vladimir Vasilyevich Nikitin is a former Soviet cross-country skier who competed in the 1980s, training at Zenit. He won a silver in the 4 × 10 km relay at the 1984 Winter Olympics in Sarajevo.
The Late Miocene is a sub-epoch of the Miocene Epoch made up of two stages. The Tortonian and Messinian stages comprise the Late Miocene sub-epoch, which lasted from 11.63 Ma to 5.333 Ma.
The Middle Miocene is a sub-epoch of the Miocene Epoch made up of two stages: the Langhian and Serravallian stages. The Middle Miocene is preceded by the Early Miocene.
Urotrichus is a genus of talpid that contains a single living species, the Japanese shrew mole (Urotrichus talpoides). Two fossil species are also known.
Alismaticarpum alatum is a fossil species of aquatic plants in the family Alismataceae. It is a form taxon created for winged fruits whose precise assignment to a genus is not possible. Fossil fruits of this species are known from the Oligocene of England.
Yuri Viktorovich Nikitin is a Ukrainian gymnast and Olympic champion. He won a gold medal at the 2004 Summer Olympics in Athens. He also competed at the 2008 and 2012 Summer Olympics.
Syllomus is an extinct genus of sea turtle from the Miocene-age deposits in the US Eastern Seaboard and Egypt.
Aleksandr Borisovich Nikitin was a Russian professional football coach and player.
Maksym Kostiantynovych Nikitin is a Ukrainian retired ice dancer. With his skating partner, Oleksandra Nazarova, he is the 2015 World Junior bronze medalist and 2012 Youth Olympic silver medalist. On the senior level, they are the 2017 Winter Universiade champions, 2014 CS Warsaw Cup silver medalists, 2016 Cup of Nice bronze medalists, and six-time Ukrainian national champions. Nazorova/Nikitin have represented Ukraine at the 2018 and 2022 Winter Olympics.
Aleksei Valeryevich Nikitin is a Russian football centre-back who plays for Rotor Volgograd.
Boris Vasilievich Nikitin was a Soviet freestyle swimmer. He had his best achievements in the 4 × 200 m relay, in which he set a world record in 1956, and won a bronze medal at the 1956 Summer Olympics and a gold medal at the 1958 European Aquatics Championships; his team finished eighths at the 1960 Olympics. Individually, he won a European silver medal in the 400 m freestyle in 1958, but did not reach the final in that event at the 1956 Olympics.
Valeri Nikitin is an Estonian former wrestler who competed in the 1992 Summer Olympics, 1996 Summer Olympics and in the 2000 Summer Olympics.
Vladimir Olegovich Nikitin is a Russian professional boxer. He is best known for winning a bronze medal at the 2016 Rio Olympics against Irish boxer Michael Conlan.
Sarah de Oliveira Nikitin is a Brazilian competitive archer. A member of Brazil's archery squad in three editions of the Pan American Games, and at the 2016 Summer Olympics, Nikitin scored her only career medal with a bronze over Venezuela's Leidys Brito in the women's individual recurve tournament at the 2014 South American Games in Santiago, Chile. Nikitin currently trains under the tutelage of head coach Evandro Azevedo for the Brazilian national squad, while shooting at a local archery range in her native São Paulo.
Nikitin Glacier is a glacier flowing north into Stange Sound on the English Coast, eastward of Lidke Ice Stream and an unnamed intervening glacier. Named by the USSR Academy of Sciences in 1987 after Afanasiy Nikitin, a Russian traveler who documented a visit to India and Africa during the years 1466–1472.
Nikitin Pochinok is a rural locality in Moseyevskoye Rural Settlement, Totemsky District, Vologda Oblast, Russia. The population was 18 as of 2002.
Hypericum septestum is an extinct species of the genus Hypericum that was present during the Oligocene and Miocene epochs. Its holotype is a fossil seed from the Lower Oligocene that was collected in Western Siberia in 1965, and fossils of the species has also been found in other parts of Russia and in the Czech Republic.
 | This Alismatales-related article is a stub. You can help Wikipedia by expanding it. |
 | This paleobotany-related article is a stub. You can help Wikipedia by expanding it. |