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Ray Spider
The ray spiders (Theridiosomatidae) are a family of spiders first described by Eugène Simon in 1881. They are most recognizable for their construction of cone-shaped webs. The family contains several genera which actively hunt for prey by using their webs to slingshot themselves towards prey. Genera , the World Spider Catalog accepts the following genera: *'' Andasta'' Simon, 1895 – Seychelles, Malaysia, Sri Lanka *'' Baalzebub'' Coddington, 1986 – Central America, Brazil, Australia, China *'' Chthonopes'' Wunderlich, 2011 – Laos *'' Chthonos'' Coddington, 1986 – Ecuador, Brazil, Peru *'' Coddingtonia'' Miller, Griswold & Yin, 2009 – Malaysia, Laos *'' Cuacuba'' Prete, Cizauskas & Brescovit, 2018 *'' Epeirotypus'' O. Pickard-Cambridge, 1894 – Mexico, Costa Rica *'' Epilineutes'' Coddington, 1986 – Mexico, Brazil *'' Karstia'' Chen, 2010 – China *'' Menglunia'' Zhao & Li, 2012 – China *'' Naatlo'' Coddington, 1986 – Central America, South America, Trinidad and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wendilgarda
''Wendilgarda'' is a genus of ray spiders that was first described by Eugen von Keyserling in 1886. Species it contains fourteen species and one subspecies, found in Asia, the Caribbean, Central America, São Tomé and Príncipe, Brazil, and Mexico: *'' Wendilgarda assamensis'' Fage, 1924 – India, China *'' Wendilgarda atricolor'' (Simon, 1907) – São Tomé and Príncipe *'' Wendilgarda clara'' Keyserling, 1886 – Caribbean, Guatemala to Brazil *'' Wendilgarda galapagensis'' Archer, 1953 – Costa Rica (Cocos Is.) *'' Wendilgarda housaiyuae'' Lin & Li, 2022 – China *'' Wendilgarda liliwensis'' Barrion & Litsinger, 1995 – Philippines *'' Wendilgarda mexicana'' Keyserling, 1886 ( type) – Mexico, Central America, Cuba *'' Wendilgarda muji'' Miller, Griswold & Yin, 2009 – China *'' Wendilgarda mustelina'' Simon, 1898 – St. Vincent **'' Wendilgarda m. arnouxi'' Lopez & Emerit, 1986 – Guadeloupe *'' Wendilgarda nigra'' Keyserling, 1886 – Brazil *'' Wendilgarda nippon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naatlo
''Naatlo'' is a genus of Theridiosomatidae, ray spiders that was first described by Jonathan A. Coddington in 1986. Behaviour They use their web as a high speed slingshot to actively hunt for prey. Spiders in the genus have been observed to slingshot themselves at speeds exceeding 1.0m/s with accelerations exceeding 250m/s2. Species it contains seven species, found in South America, Panama, Costa Rica, on Tobago, and Trinidad: *''Naatlo fauna'' (Eugène Simon, Simon, 1897) – Costa Rica, Panama, Colombia, Venezuela, Trinidad and Tobago, Ecuador, Peru, Brazil *''Naatlo maturaca'' Rodrigues & Lise, 2008 – Brazil *''Naatlo mayzana'' Dupérré & Tapia, 2017 – Ecuador *''Naatlo serrana'' Rodrigues & Lise, 2008 – Brazil *''Naatlo splendida'' (Władysław Taczanowski, Taczanowski, 1874) – Panama, Colombia, Venezuela, French Guiana, Ecuador, Peru, Bolivia, Brazil. [note, date wrong in several works as 1879] *''Naatlo sutila'' Coddington, 1986 (Type_species, type) – Panama, Col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vendée Amber
Vendée (; br, Vande) is a department in the Pays de la Loire region in Western France, on the Atlantic coast. In 2019, it had a population of 685,442.Populations légales 2019: 85 Vendée INSEE Its is . History The area today called the Vendée was originally known as the ''Bas-Poitou'' and is part of the former province of . In the southeast corner, the village of ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") 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. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dominican Amber
Dominican amber is amber from the Dominican Republic derived from resin of the extinct tree ''Hymenaea protera''. Dominican amber differentiates itself from Baltic amber by being nearly always transparent, and it has a higher number of fossil inclusions. This has enabled the detailed reconstruction of the ecosystem of a long-vanished tropical forest.George Poinar, Jr. and Roberta Poinar, 1999. ''The Amber Forest: A Reconstruction of a Vanished World'', (Princeton University Press) Age A study in the early 1990s returned a date up to 40 million years old. However, according to Poinar, Dominican amber dates from Oligocene to Miocene, thus about 25 million years old. The oldest, and hardest of this amber comes from the mountain region north of Santiago. The ''La Cumbre'', ''La Toca'', ''Palo Quemado'', ''La Bucara'', and ''Los Cacaos'' mining sites in the ''Cordillera Septentrional'' not far from Santiago. Amber has also been found in the south-eastern Bayaguana/Sabana de la Mar a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bitterfeld Amber
The Baltic region is home to the largest known deposit of amber, called Baltic amber or succinite. It was produced sometime during the Eocene epoch, but exactly when is controversial. It has been estimated that these forests created more than 100,000 tons of amber. Today, more than 90% of the world's amber comes from Kaliningrad Oblast of Russia. It is a major source of income for the region; the local Kaliningrad Amber Combine extracted 250 tonnes of it in 2014, 400 tonnes in 2015. "Baltic amber" was formerly thought to include amber from the Bitterfeld brown coal mines in Saxony (Eastern Germany). Bitterfeld amber was previously believed to be only 20–22 million years old (Miocene), but a comparison of the animal inclusions in 2003 suggested that it was possibly Baltic amber that was redeposited in a Miocene deposit. Further study of insect taxa in the ambers has shown Bitterfeld amber to be from the same forest as the Baltic amber forest, but separately deposited from a mor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) Epoch is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "dawn") and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope Carbon-13, 13C in the atmosphere was exceptionally low in comparison with the more common isotope Carbon-12, 12C. The end is set at a major extinction event called the ''Grande Coupure'' (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Popigai impact structure, Siberia and in what is now ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltic Amber
The Baltic region is home to the largest known deposit of amber, called Baltic amber or succinite. It was produced sometime during the Eocene epoch, but exactly when is controversial. It has been estimated that these forests created more than 100,000 tons of amber. Today, more than 90% of the world's amber comes from Kaliningrad Oblast of Russia. It is a major source of income for the region; the local Kaliningrad Amber Combine extracted 250 tonnes of it in 2014, 400 tonnes in 2015. "Baltic amber" was formerly thought to include amber from the Bitterfeld Lignite, brown coal mines in Saxony (Eastern Germany). Bitterfeld amber was previously believed to be only 20–22 million years old (Miocene), but a comparison of the animal inclusions in 2003 suggested that it was possibly Baltic amber that was redeposited in a Miocene deposit. Further study of insect taxa in the ambers has shown Bitterfeld amber to be from the same forest as the Baltic amber forest, but separately deposited f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoma (spider)
''Zoma'' is a genus of ray spiders that was first described by Michael I. Saaristo in 1996. it contains three species, found in Japan, China, and on the Seychelles: '' Z. dibaiyin'', '' Z. fascia'', and '' Z. zoma''. See also * List of Theridiosomatidae species This page lists all described species of the spider family Theridiosomatidae accepted by the World Spider Catalog : A ''Andasta'' ''Andasta'' Simon, 1895 * '' A. benoiti'' (Roberts, 1978) — Seychelles * '' A. cyclosina'' Simon, 1901 — Malay ... References Further reading * * * Araneomorphae genera Spiders of Africa Spiders of Asia Theridiosomatidae {{Theridiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theridiosoma
''Theridiosoma'' is a genus of ray spiders that was first described by Octavius Pickard-Cambridge in 1879. They use their web as a high speed slingshot to actively hunt for prey. Description Mature spiders in this genus have a body length of 0.5–2.5 mm. The carapace ranges from dark brown to light tan, sometimes with distinct markings around the eye region or fovea, The sternum is smooth, with sparse bristles, and is usually darker towards the margin. A pit organ is present on the anterior margin of the sternum, at both corners. The abdomen is ovoid in shape, and taller than wide or long; the dorsal side of the abdomen often bears a light, thin median band and/or symmetrical light spots, the ventral side is dark. The metatarsi of the legs are typically shorter than the tibiae. As with other spiders in the family, the tibiae of the 3rd and 4th legs bear a group of long, vibration-sensitive trichobothria. Species in this genus exhibit only slight sexual dimorphism; males a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tagalogonia
''Tagalogonia'' is a genus of spiders in the family Theridiosomatidae The ray spiders (Theridiosomatidae) are a family of spiders first described by Eugène Simon in 1881. They are most recognizable for their construction of cone-shaped webs. The family contains several genera which actively hunt for prey by using .... It was first described in 2014 by Labarque & Griswold. , it contains 2 species from the Philippines. References Theridiosomatidae Araneomorphae genera Spiders of Asia {{Theridiosomatidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinoalaria
''Sinoalaria'' is a genus of spiders in the family Theridiosomatidae The ray spiders (Theridiosomatidae) are a family of spiders first described by Eugène Simon in 1881. They are most recognizable for their construction of cone-shaped webs. The family contains several genera which actively hunt for prey by using .... It was first described in 2014 by Zhao & Li. , it contains 4 species from Laos and China. References Theridiosomatidae Araneomorphae genera Spiders of Asia {{Theridiosomatidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
