| Calotheca | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Class: | Choanoflagellatea |
| Order: | Acanthoecida |
| Family: | Acanthoecidae |
| Genus: | Calotheca H. A. Thomsen and O. Moestrup, 1983 |
| Species [1] | |
| |
Calotheca is the name used for a genus of choanoflagellates in the family Acanthoecidae, though this name is a junior homonym of the name Calotheca Heyden, 1887, and it must be replaced under the rules of the ICZN. [2] The species C. alata is from Indo-Pacific Localities. [3]
The choanoflagellates are a group of free-living unicellular and colonial flagellate eukaryotes considered to be the closest living relatives of the animals. Choanoflagellates are collared flagellates, having a funnel shaped collar of interconnected microvilli at the base of a flagellum. Choanoflagellates are capable of both asexual and sexual reproduction. They have a distinctive cell morphology characterized by an ovoid or spherical cell body 3–10 µm in diameter with a single apical flagellum surrounded by a collar of 30–40 microvilli. Movement of the flagellum creates water currents that can propel free-swimming choanoflagellates through the water column and trap bacteria and detritus against the collar of microvilli, where these foodstuffs are engulfed. This feeding provides a critical link within the global carbon cycle, linking trophic levels. In addition to their critical ecological roles, choanoflagellates are of particular interest to evolutionary biologists studying the origins of multicellularity in animals. As the closest living relatives of animals, choanoflagellates serve as a useful model for reconstructions of the last unicellular ancestor of animals.
Dioscorea alata – also called purple yam, ube, or greater yam, among many other names – is a species of yam. The tubers are usually a vivid violet-purple to bright lavender in color, but some range in color from cream to plain white. It is sometimes confused with taro and the Okinawa sweet potato beniimo (紅芋), however D. alata is also grown in Okinawa. With its origins in the Asian tropics, D. alata has been known to humans since ancient times.
Martin Roy Cheek is a botanist and taxonomist at the Royal Botanic Gardens, Kew.
Corallochytrium belongs to the class of Corallochytrea within Teretosporea and is a sister group to Ichthyosporea. Corallochytrium limacisporum is the only species of Corallochytrium known so far. It was first discovered and named in the Arabian Sea’s coral lagoons by Kaghu-Kumar in 1987. It was first thought to be a member of the fungi-like thraustochytrids, however, this was later disproven due to Corallochytriums lack of cilia and sagenogenetosome. Little research has been done on the life cycle or morphology. Most research concerning this genus has been done to uncover the evolution of animals and fungi, as Corallochytrium possess both animal and fungal enzymatic trademarks.
Adeopapposaurus is a genus of plateosaurian dinosaur from the Early Jurassic Cañón del Colorado Formation of San Juan, Argentina. It was similar to Massospondylus. Four partial skeletons with two partial skulls are known.
Chanaresuchus is an extinct genus of proterochampsid archosauriform. It was of modest size for a proterochampsian, being on average just over a meter in length. The type species is Chanaresuchus bonapartei was named in 1971. Its fossils were found in from the early Carnian-age Chañares Formation in La Rioja Province, Argentina. Chanaresuchus appears to be one of the most common archosauriforms from the Chañares Formation due to the abundance of specimens referred to the genus. Much of the material has been found by the La Plata-Harvard expedition of 1964-65. Chanaresuchus is the most well-described proterochampsid in the subfamily Rhadinosuchinae.
Holozoa is a clade of organisms that includes animals and their closest single-celled relatives, but excludes fungi and all other organisms. Together they amount to more than 1.5 million species of purely heterotrophic organisms, including around 300 unicellular species. It consists of various subgroups, namely Metazoa and the protists Choanoflagellata, Filasterea, Pluriformea and Ichthyosporea. Along with fungi and some other groups, Holozoa is part of the Opisthokonta, a supergroup of eukaryotes. Choanofila was previously used as the name for a group similar in composition to Holozoa, but its usage is discouraged now because it excludes animals and is therefore paraphyletic.
Maziwi island officially, The Maziwe Island Marine Reserve is a unvegetated, protected island surrounded by coral reefs located about 8 kilometres (5.0 mi) south east of the town of Pangani off the northern coast of Tanga Region in Tanzania. The island is administered under Mwera ward of Pangani District. However, it is currently under the Tanga Marine Reserves System. It became a nature reserve in 1975. At one time the island was larger than its present area and was well-vegetated but with the loss of its coconut trees and scrub cover, it has suffered erosion and is now sometimes completely immersed at the time of the highest tides. Green sea turtles no longer nest on the island, but it is visited by numerous sea birds. The sea contains many species of coral and over two hundred species of fish. The reserve has received little active conservation work but management is now supported by levying a small fee on tourists which is used to compensate local fishermen for loss of income.
Pirenella alata is a species of sea snail, a marine gastropod mollusk in the family Potamididae. It also lives in brackish water.
The Special Operations Command Pacific, known as SOCPAC, is a sub-unified command of the United States Department of Defense for special operations forces in the United States Indo-Pacific Command (USINDOPACOM) area of responsibility.
Algoriphagus is a genus in the phylum Bacteroidota (Bacteria).
Raphitomidae is a family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.
Overosaurus is an extinct genus of sauropod dinosaurs, containing only a single species, Overosaurus paradasorum. This species lived approximately 86 to 84 million years ago during the latter part of the Cretaceous Period in what is now Patagonia. Overosaurus paradasorum was relatively small compared to other sauropods from Patagonia, like the saltasaurids and other aeolosaurines, estimated as approximately 10 m (33 ft). It was a ground-dwelling herbivore.
Nepenthes ramos is a tropical pitcher plant native to the northeastern Mindanao, Philippines. It is known from only a handful of herbarium specimens collected in 1919 at an elevation of 670 m above sea level. It likely grows in the forest on ultramafic soils.
Nepenthes extincta is a tropical pitcher plant native to the Philippines. It is known only from Surigao del Sur, Mindanao, where it has been recorded at c. 400 metres (1,300 ft) altitude.
Nepenthes kitanglad is a tropical pitcher plant native to the Philippines. It is known only from Mount Kitanglad in Bukidnon Province, Mindanao, where it has been recorded as an epiphyte in mossy forest at 1800–2100 m altitude. This species belongs to the informal "N. alata group", which also includes N. alata, N. ceciliae, N. copelandii, N. extincta, N. graciliflora, N. hamiguitanensis, N. kurata, N. leyte, N. mindanaoensis, N. negros, N. ramos, N. saranganiensis, and N. ultra. These species are united by a number of morphological characters, including winged petioles, lids with basal ridges on the lower surface, and upper pitchers that are usually broadest near the base.
The diamond mullet, is a species of mullet and is also known as the Ord River mullet. This species lives in both brackish or freshwater. Adult fish are found in estuaries, coastal waters and in some cases, ascending rivers into fresh water.
Planiliza is a genus of mullets found in coastal marine waters, estuaries and rivers in the Indo-Pacific.
Podontia is a genus of flea beetles in the family Chrysomelidae. They belong in the Blepharida-group of flea beetles.
Transylvanosaurus is an extinct genus of rhabdodontid ornithopod dinosaur from the Late Cretaceous (Maastrichtian) Hateg Basin of Romania. The type species is Transylvanosaurus platycephalus, known from a fragmentary skull.
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