The family Dipluridae, known as curtain-web spiders are a group of spiders in the infraorder Mygalomorphae, that have two pairs of booklungs, and chelicerae (fangs) that move up and down in a stabbing motion. A number of genera, including that of the Sydney funnel-web spider (Atrax), used to be classified in this family but have now been moved to Hexathelidae.
Vailimia is a genus of Asian jumping spiders. The type species was described in 1907 from a single male about 6 millimetres (0.24 in) long. It was originally thought to be close to Harmochirus, but the male pedipalp, chelicera, and cephalothorax drawn by Proszynski in 1984, and information gained from later collected specimens indicates otherwise. Subsequently, five more species have been identified. It may be a synonym for Pancorius.
Cyclocosmia is a genus of mygalomorph trapdoor spiders in the family Halonoproctidae, first described by Anton Ausserer in 1871. Originally placed with the Ctenizidae, when the family split in 2018, this genus was placed with the Halonoproctidae as the type genus. The name is derived from the Greek "kyklos" (κυκλος), meaning "circle", and "kosmeo" (κοσμεω), meaning "to adorn".
Fluctus is a small genus of east Asian corinnid sac spiders. It was first described by C. Jin and F. Zhang in 2020, and it has only been found in China. As of November 2021 it contains only two species: F. bannaensis and F. tengchongensis.
The Tiaojishan Formation is a geological formation in Hebei and Liaoning, People's Republic of China, dating to the middle-late Jurassic period. It is known for its exceptionally preserved fossils, including those of plants, insects and vertebrates. It is made up mainly of pyroclastic rock interspersed with basic volcanic and sedimentary rocks. Previously, the Tiaojishan Formation was grouped together with the underlying Haifanggou Formation as a single "Lanqi Formation." The Tiaojishan Formation forms a key part of the Yanliao Biota assemblage.
The Yixian Formation is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans about 5 million years during the early Cretaceous period. It is known for its fossils, listed below.
Utivarachna is a genus of Asian araneomorph spiders in the family Trachelidae first described by Kyukichi Kishida in 1940. It was largely ignored until Christa L. Deeleman-Reinhold revised the sac and ground spiders in 2001, transferring some species from Trachelas and adding several new ones. The genus was further expanded in 2014 and 2015.
Sinoctenus is a monotypic genus of East Asian wandering spiders containing the single species, Sinoctenus zhui. A male was first described by Yuri M. Marusik, F. Zhang & M. M. Omelko in 2012, but no female has yet been described. It has only been found in China.
Diphya is a genus of long-jawed orb-weavers that was first described by H. Nicolet in 1849. D. tanasevitchi and D. albulum were transferred from Lophomma in 2007.
Leptothele bencha is a species of spiders in the family Euagridae first described by Robert Raven & Peter J. Schwendinger in 1995, and is native to the Malay Peninsula.
Abdosetae is a genus of Asian araneomorph spiders in the family Phrurolithidae, first described by J. Y. Fu, F. Zhang & J. MacDermott in 2010.
Bucliona is a genus of sac spiders first described by Pierre L.G. Benoit in 1977. As of November 2021 it contains only three species: B. dubia, B. jucunda, and B. kirilli. It was synonymized with Clubiona in 1997, but was elevated back to genus in 2021. The type species was originally described under the name "Clubiona dubia".
Burmese amber is fossil resin dating to the early Late Cretaceous Cenomanian age recovered from deposits in the Hukawng Valley of northern Myanmar. It is known for being one of the most diverse Cretaceous age amber paleobiotas, containing rich arthropod fossils, along with uncommon vertebrate fossils and even rare marine inclusions. A mostly complete list of all taxa described up until 2018 can be found in Ross 2018; its supplement Ross 2019b covers most of 2019.
Malayathele is a genus of southeast Asian mygalomorph spiders in the family Euagridae. It was first described by Peter J. Schwendinger, C. Lehmann-Graber and K. Hongpadharakiree in 2020, and it has only been found in Malaysia.
Femorbiona is a genus of Asian sac spiders first described by J. S. Zhang, H. Yu and S. Q. Li in 2021. As of November 2021 it contains only 3 species: F. brachyptera, F. phami, and F. shenzhen.
Ramosatidia is a monotypic genus of east Asian sac spiders containing the single species, Ramosatidia situ. It was first described by J. S. Zhang, H. Yu and S. Q. Li in 2021, and it has only been found in China.
Sinophaena is a small genus of east Asian anyphaenid sac spiders. It was first described by Y. J. Lin, Yuri M. Marusik and C. X. Gao in 2021, and it has only been found in China. As of November 2021 it contains only two species: S. bivalva and S. xiweni.
Sinocanthium is a monotypic genus of east Asian spiders in the family Cheiracanthiidae containing the single species, Sinocanthium shuangqiu. It was first described by J. S. Zhang, H. Yu and S. Q. Li in 2020, and it has only been found in China.
Sinostidia is a small genus of east Asian sac spiders. It was first described by J. S. Zhang, H. Yu and S. Q. Li in 2021, and it has only been found in China. As of November 2021 it contains only two species: S. dujiao and S. shuangjiao.
Spinirta is a genus of east Asian corinnid sac spiders. It was first described by C. Jin and F. Zhang in 2020, and it has only been found in China.
