Tuesday, July 26th, 2022

Time	Event
9:29a	[Arachnida • 2022] Sinopoda bigibba, S. bogil & S. pantherina • Taxonomic Study on Sinopoda Jäger, 1999 (Araneae: Sparassidae: Heteropodinae), with Three New Species from Korea  B Sinopoda bogil sp. nov. C Sinopoda bigibba sp. nov., from Taean-gun D, E Sinopoda pantherina sp. nov., from Geoje-si Chae, Lee & Kim, 2022 DOI: 10.3897/zookeys.1114.85493 Abstract The genus Sinopoda Jäger, 1999 is a group of huntsman spiders (Araneae: Sparassidae: Heteropodinae), and currently seven species have been reported in Korea. In this study, three new species are described from Korea, Sinopoda bigibba sp. nov., Sinopoda bogil sp. nov., and Sinopoda pantherina sp. nov.; Sinopoda jirisanensis Kim & Chae, 2013 is revalidated with neotype designation, and had been formerly synonymized with Sinopoda forcipata (Karsch, 1881). Additionally, all previous records of Sinopoda stellatops Jäger & Ono, 2002 and S. forcipata from Korea are deemed misidentifications of S. jirisanensis and S. bogil sp. nov., respectively. Keywords: Biodiversity, huntsman spiders, Northeast Asia, revalidation, taxonomy Family Sparassidae Bertkau, 1872 Subfamily Heteropodinae Thorell, 1873 Genus Sinopoda Jäger, 1999 Type species: Sarotes forcipatus Karsch, 1881 Live statements of Sinopoda spp. A, B Sinopoda bogil sp. nov. (A male, dorsal view B female, dorsal view) C Sinopoda bigibba sp. nov., dorsal view of paratype female from Taean-gun D, E Sinopoda pantherina sp. nov., from Geoje-si (D dorsal view of juvenile female E dorsal view of adult female). Scale bars: 5.0 mm (A, B).  Sinopoda bigibba sp. nov.     Etymology: The specific epithet bigibba is a compound word of the prefix bi- for two and the Latin adjective gibbus, -a, -um meaning humped, derived from the form of female glandular appendages (Figs 1E, G, 2E).  Sinopoda bogil sp. nov.  Etymology: The specific epithet bogil is derived from the type locality, Is. Bogildo; noun.  Sinopoda pantherina sp. nov.   Etymology: The specific epithet pantherina is derived from the Latin adjective pantherinus, -a, -um, meaning leopard-like, originating from the coloration pattern of live specimens (Fig. 13D, E). Junho Chae, Jun-Gi Lee and Sam-Kyu Kim. 2022. Taxonomic Study on Sinopoda Jäger, 1999 (Araneae, Sparassidae, Heteropodinae), with Three New Species from Korea. ZooKeys. 1114: 77-104. DOI: 10.3897/zookeys.1114.85493 twitter.com/JGLee_Aranea/status/1551849431028273153 (Comment on this)
9:42a	[Paleontology • 2022] Plesiosaurs from the Fluvial Kem Kem Group (mid-Cretaceous) of eastern Morocco and A Review of Non-marine Plesiosaurs in Bunker, Martill, ... et Longrich, 2022.   DOI: 10.1016/j.cretres.2022.105310  Abstract Plesiosaurs were a long-lived and widespread group of marine reptiles, with a worldwide distribution and a temporal range from the Late Triassic to the Late Cretaceous. Most occur in marine deposits, but some occur in low-salinity, brackish to freshwater environments. We report plesiosaurs from the freshwater fluvial deposits of the mid-Cretaceous (?Albian-Cenomanian) Kem Kem Group of Morocco. Remains include numerous shed teeth, vertebrae, and a humerus. The humerus represents a young juvenile; vertebrae likely belong to sub-adults. Teeth show heavy wear, similar to teeth of co-occurring spinosaurids. While coeval plesiosaurs from the Bahariya Formation of Egypt are members of Polycotylidae, the Kem Kem fossils show features of Leptocleididae, small-bodied plesiosaurs that were widely distributed in nearshore and non-marine settings in the Early Cretaceous. These fossils are the first freshwater plesiosaurs from Morocco, and are among the youngest representatives of Leptocleididae. The Kem Kem leptocleidids could have been infrequent visitors from the sea, freshwater-tolerant, or even freshwater-adapted, as in modern river dolphins. The abundance of shed teeth in the Kem Kem Group supports the hypothesis that they had some degree of freshwater tolerance. Furthermore, leptocleidids occur almost exclusively in shallow nearshore, brackish, or freshwater environments, suggesting adaptation to shallow, low-salinity environments. Other plesiosaur groups and other Mesozoic marine reptiles, including teleosaurids and mosasaurids, also occur in freshwater settings, suggesting plesiosaurs and other marine reptiles frequently exploited non-marine environments. Keywords: Plesiosauria, Leptocleididae, Palaeoecology, Kem Kem Group, Morocco, Freshwater Plesiosaurs and spinosaurus may have both inhabited freshwater rivers.   Georgina Bunker, David M. Martill, Roy Smith, Samir Zourhi and Nick Longrich. 2022. Plesiosaurs from the Fluvial Kem Kem Group (mid-Cretaceous) of eastern Morocco and A Review of Non-marine Plesiosaurs.   Cretaceous Research. 105310. In Press. DOI: 10.1016/j.cretres.2022.105310  bath.ac.uk/announcements/plesiosaur-fossils-found-in-the-sahara-suggest-they-werent-just-marine-animals (Comment on this)

<< Previous Day

2022/07/26 [Calendar]

Next Day >>