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2022 In Arthropod Paleontology
2022 in arthropod palentology is a list of new arthropod fossil taxa, including arachnids, crustaceans, insects, trilobites, and other arthropods that were announced or described, as well as other significant arthropod paleontological discoveries and events which occurred in 2022. Arachnids Arachnid research * Shanks & Selden (2022) describe the first trigonotarbid specimens from the Carboniferous Shelburn Formation of Indiana and Senora Formation of Oklahoma. * A study on the anatomy of '' Protoischnurus axelrodorum'' is published by Carvalho ''et al.'' (2022), who interpret this scorpion as a probable early member of the crown group of Iurida, possibly a stem hormurid. * Xuan, Cai & Huang (2022) describe two immature scorpions from the Cretaceous amber from Myanmar, assigned to the genus ''Chaerilus''. * Revision of recluse spiders from the Dominican amber is published by Magalhaes ''et al.'' (2022), who transfer the species ''"Loxosceles" aculicaput'' to the family Drym ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropod
Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arthropod cuticle, cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an exoskeleton, external skeleton. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. Some species have wings. They are an extremely diverse group, with up to 10 million species. The haemocoel, an arthropod's internal cavity, through which its haemolymph – analogue of blood – circulates, accommodates its interior Organ (anatomy), organs; it has an open circulatory system. Like their exteriors, the internal or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schizomida
Schizomida (common name shorttailed whipscorpion) is an order of arachnids, generally less than in length. The order is not yet widely studied. About 300 species of schizomids have been described worldwide, most belonging to the Hubbardiidae family. A systematic review including a full catalogue may be found in Reddell & Cokendolpher (1995). The Schizomida is sister to the order Uropygi, the two clades together forming the Thelyphonida. Based on molecular clock dates, both orders likely originated in the late Carboniferous somewhere in the tropics of Pangea, and the Schizomida underwent substantial diversification starting in the Cretaceous. The oldest known fossils of the group are from the Mid-Cretaceous Burmese amber of Myanmar, which are assignable to the Hubbardiidae. E. O. Wilson has identified schizomids as among the "groups of organisms that desperately need experts to work on them." Taxonomy Schizomids are grouped into three families: * Calcitronidae † (fossil) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philodromidae
Philodromidae, also known as philodromid crab spiders and running crab spiders, is a family of araneomorph spiders first described by Tord Tamerlan Teodor Thorell in 1870 (then known as subfamily Philodrominae within Thomisidae). It contains over 500 species in thirty genera. The most common genus is ''Philodromus'' which is widespread, similar to ''Ebo''. Other common genera include the elongate grass-dwelling ''Tibellus'' and the widespread ''Thanatus'', which includes the house crab spider that commonly captures flies on and in buildings. Description Philodromids have a crab-like shape due to the first two pairs of legs being oriented sideways (laterigrade). This is superficially similar to the "true" crab spiders (Thomisidae), such as '' Misumena vatia,'' but these families are not as closely related as previously thought. Unlike crab spiders, the legs are generally similar in size, though the second leg pair may be significantly longer than the first pair. This is most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feaellidae
The Feaellidae are a family of pseudoscorpions with the single genus ''Feaella''. Species Feaella Ellingsen, 1906 * subgenus ''Feaella'' Ellingsen, 1906 ** '' Feaella mirabilis'' Ellingsen, 1906 — western Africa ** '' Feaella mombasica'' Beier, 1955 — Kenya * subgenus ''Difeaella'' Beier, 1966 ** '' Feaella krugeri'' (Beier, 1966) — southern Africa * subgenus ''Tetrafeaella'' Beier, 1955 ** ''Feaella affinis'' Hirst, 1911 — Seychelles ** '' Feaella anderseni'' (Harvey, 1989) — Australia :* '' Feaella capensis'' Beier, 1955 — southern Africa :** ''Feaella capensis nana'' (Beier, 1966) — southern Africa :* '' Feaella indica'' J.C. Chamberlin, 1931 :* '' Feaella leleupi'' (Beier, 1959) — Zaire :* '' Feaella mucronata'' Tullgren, 1907 — southern Africa :* '' Feaella parva'' Beier, 1947 — southern Africa :* ''Feaella perreti ''Feaella perreti'' is a species of arachnid in the order Pseudoscorpions in the family Feaellidae. It is endemic to Kenya ) , na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudoscorpion
Pseudoscorpions, also known as false scorpions or book scorpions, are small, scorpion-like arachnids belonging to the order Pseudoscorpiones, also known as Pseudoscorpionida or Chelonethida. Pseudoscorpions are generally beneficial to humans since they prey on clothes moth larvae, carpet beetle larvae, booklice, ants, mites, and small flies. They are tiny, and are rarely noticed due to their small size, despite being common in many environments. When people do see pseudoscorpions, especially indoors, they are often mistaken for ticks or small spiders. Pseudoscorpions often carry out phoresis, a form of commensalism in which one organism uses another for the purpose of transport. Characteristics Pseudoscorpions belong to the class Arachnida. They are small arachnids with a flat, pear-shaped body, and pincer-like pedipalps that resemble those of scorpions. They usually range from in length. Pennsylvania State University, DepartmentEntomological Notes: Pseudoscorpion Fac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ixodidae
The Ixodidae are the family of hard ticks or scale ticks, one of the three families of ticks, consisting of over 700 species. They are known as 'hard ticks' because they have a scutum or hard shield, which the other major family of ticks, the 'soft ticks' ( Argasidae), lack. They are ectoparasites of a wide range of host species, and some are vectors of pathogens that can cause human disease. Description They are distinguished from the Argasidae by the presence of a scutum. In both the nymph and the adult, a prominent gnathosoma (or capitulum, mouth and feeding parts) projects forward from the animal's body; in the Argasidae, conversely, the gnathosoma is concealed beneath the body. They differ, too, in their lifecycle; Ixodidae that attach to a host bite painlessly and are generally unnoticed, and they remain in place until they engorge and are ready to change their skin; this process may take days or weeks. Some species drop off the host to moult in a safe place, whereas ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long-jawed Orb Weaver
Long-jawed orb weavers or long jawed spiders (Tetragnathidae) are a family of araneomorph spiders first described by Anton Menge in 1866. They have elongated bodies, legs, and chelicerae, and build small orb webs with an open hub with few, wide-set radii and spirals with no signal line or retreat. Some species are often found in long vegetation near water. Systematics , the World Spider Catalog accepts the following extant genera: *'' Alcimosphenus'' Simon, 1895 — Caribbean *''Allende'' Álvarez-Padilla, 2007 — Chile, Argentina *''Antillognatha'' Bryant, 1945 — Hispaniola *''Atelidea'' Simon, 1895 — Sri Lanka *''Azilia'' Keyserling, 1881 — United States, Panama, South America, Caribbean *'' Chrysometa'' Simon, 1894 — South America, Central America, Mexico, Caribbean *'' Cyrtognatha'' Keyserling, 1881 — South America, Central America, Caribbean, Mexico *''Dianleucauge'' Song & Zhu, 1994 — China *'' Diphya'' Nicolet, 1849 — Asia, South America, Africa *'' Doli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexican Amber
Mexican amber, also known as Chiapas Amber is amber found in Mexico, created during the Early Miocene and middle Miocene epochs of the Cenozoic Era in southwestern North America. As with other ambers, a wide variety of taxa have been found as inclusions including insects and other arthropods, as well as plant fragments and epiphyllous fungi. Context Mexican amber is mainly recovered from fossil bearing rocks in the Simojovel region of Chiapas, Mexico. It is one of the main minerals recovered in the state of Chiapas, much of which is from 15 to 23 million years old, with quality comparable to that found in the Dominican Republic. Chiapan amber has a number of unique qualities, including much that is clear all the way through and some with fossilized insects and plants. Most Chiapan amber is worked into jewelry including pendants, rings and necklaces. Colors vary from white to yellow/orange to a deep red, but there are also green and pink tones as well. Since pre-Hispanic times ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
