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Friday, June 14th, 2024
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| 1:05a | [Entomology • 2024] Saiva constanti • A New Species of the Asian Lanternfly Genus Saiva Distant, 1906 (Hemiptera: Fulgoromorpha: Fulgoridae) from Thailand with Notes on S. virescens and Pyrops cultellatus
Abstract A new species of the Asian lanternfly genus Saiva Distant, 1906, Saiva constanti Jiaranaisakul sp. nov., is described from Thailand with illustrations and distribution map. Saiva virescens (Westwood, 1842) is proposed as a senior synonym of Saiva phesamensis Ollenbach, 1928 syn. nov. and Fulgora pyrrhochlora Butler, 1874 syn. nov. is now considered as junior synonym of Pyrops cultellatus (Walker, 1857). Hemiptera, lanternfly, Fulgoroidea, planthopper, Saiva, new species
Kawin Jiaranaisakul, Mick Webb and Nantasak Pinkaew. 2024. A New Species of the Asian Lanternfly Genus Saiva Distant, 1906 from Thailand (Hemiptera: Fulgoromorpha: Fulgoridae) with Notes on S. virescens (Westwood, 1842) and Pyrops cultellatus (Walker, 1857). Zootaxa. 5463(3); 405-416. DOI: 10.11646/zootaxa.5463.3.6 Researchgate.net/publication/381193188_A | ||||||||
| 1:23a | [Paleontology • 2024] The First Occurrence of a Basal Tyrannosauroid in Southeast Asia: Dental Evidence from the Upper Jurassic of Northeastern Thailand
Abstract Isolated theropod teeth are one of the most common vertebrate fossils that have been found in the Khorat Group of Thailand. Furthermore, several isolated teeth have been discovered from the Upper Jurassic Phu Kradung Formation, located in Phu Noi locality of Kalasin Province, Northeastern Thailand. Three of those theropod teeth from the Phu Noi locality show unique dental features that can be distinguished from previous discovered metriacanthosaurid theropod, including the lateral teeth with mesiolingual twisted mesial carinae extending above the cervix line and braided enamel surface texture. Morphological examination with cladistics and morphometric analyses show that these isolated teeth exhibit the synapomorphies of basal tyrannosauroids, closely related to Guanlong wucaii and Proceratosaurus bradleyi from the Jurassic Period. This paper notes the first report of a basal tyrannosauroid in Southeast Asia as well as significantly contributes to our understanding of paleoecology of the Upper Jurassic Phu Kradung Formation and paleobiogeography of Tyrannosauroidea during the Jurassic Period. Keywords: Dinosauria, Theropod, isolated teeth, Phu Kradung Formation, Mesozoic Era
 Wongwech Chowchuvech, Sita Manitkoon, Phornphen Chanthasit and Chatchalerm Ketwetsuriya. 2024. The First Occurrence of a Basal Tyrannosauroid in Southeast Asia: Dental Evidence from the Upper Jurassic of Northeastern Thailand. Tropical Natural History. 24(1); 84–95. li01.tci-thaijo.org/index.php/tnh/articl Researchgate.net/publication/376029479_The_First_Occurrence_of_Tyrannosauroid_  ค้นพบ ฟันไดโนเสาร์ไทแรนโนซอรอยด์ ญาติเก่าแก่ของ T. rex ยุคจูแรสซิกในประเทศไทย ???? ... ซากดึกดำบรรพ์ฟันไดโนเสาร์ไทแรนโนซอรอยด์แ | ||||||||
| 12:02p | [Herpetology • 2024] Ovophis jenkinsi • A New Mountain Pitviper of the Genus Ovophis (Serpentes: Viperidae) from Yunnan, China
Abstract Based on a molecular phylogenetic analysis and morphological comparison, a new species of mountain pitviper, Ovophis jenkinsi sp. nov., is described. The new species was collected in Yingjiang County, Yunnan Province, China. It can be distinguished from congeneric species by the following characters: (1) internasals in contact or separated by one small scale; (2) second supralabial entire and bordering the loreal pit; (3) dorsal scales in 23 (25)–21 (23, 25)–19 (17, 21) rows; (4) 134–142 ventrals; (5) 40–52 pairs of subcaudals; (6) third supralabial larger than fourth in all examined specimens of Ovophis jenkinsi sp. nov.; (7) deep orange-brown or dark brownish-grey markings on dorsal head surface; (8) background color of dorsal surface deep orange-brown or dark brownish-grey; (9) both sides of dorsum display dark brown trapezoidal patches; (10) scattered small white spots on dorsal surface of tail. Key words: Morphology, Ovophis jenkinsi sp. nov., snake, taxonomy, Yingjiang County
Ovophis jenkinsi sp. nov. Diagnosis: Ovophis jenkinsi sp. nov. can be distinguished by the following combination of morphological characters: (1) internasals in contact or separated by one small scale; (2) second supralabial entire and bordering the loreal pit; (3) dorsal scales in 23 (25)–21 (23, 25)–19 (17, 21) rows; (4) 134–142 ventrals; (5) 40–52 pairs of subcaudals; (6) third supralabial larger than fourth in all examined specimens of Ovophis jenkinsi sp. nov.; (7) deep orange-brown or dark brownish-grey markings on dorsal head surface; (8) background color of dorsal surface deep orange-brown or dark brownish-grey; (9) both sides of dorsum display dark brown trapezoidal patches; (10) scattered small white spots on dorsal surface of tail. Etymology: The specific epithet of the new species is dedicated to Robert “Hank” William Garfield Jenkins AM (August 1947–September 2023), a herpetologist and former chairman of the CITES Animals Committee from Australia, with a passion for snakes, especially pitvipers, and helped China, along with many Asian countries, complete snake census, conservation, and management projects. We suggest the common name “Jenkins’ mountain pitviper” in English and “yíng jiāng lào tiě tóu shé” (盈江烙铁头蛇) in Chinese.
Xian-Chun Qiu, Jin-Ze Wang, Zu-Yao Xia, Zhong-Wen Jiang, Yan Zeng, Nan Wang, Pi-Peng Li and Jing-Song Shi. 2024. A New Mountain Pitviper of the Genus Ovophis Burger in Hoge & Romano-Hoge, 1981 (Serpentes, Viperidae) from Yunnan, China. ZooKeys. 1203: 173-187. DOI: 10.3897/zookeys.1203.119218  | ||||||||
| 4:12p | [Paleontology • 2024] Diuqin lechiguanae • A New unenlagiine (Theropoda: Dromaeosauridae) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Argentina
Abstract Background: Unenlagiine paravians are among the most relevant Gondwanan theropod dinosaur clades for understanding the origin of birds, yet their fossil record remains incomplete, with most taxa being represented by fragmentary material and/or separated by lengthy temporal gaps, frustrating attempts to characterize unenlagiine evolution. Results and conclusions: Here we describe Diuqin lechiguanae gen. et sp. nov., a new unenlagiine taxon from the Upper Cretaceous (Santonian) Bajo de la Carpa Formation of the Neuquén Basin of Neuquén Province in northern Patagonia, Argentina that fills a substantial stratigraphic gap in the fossil record of these theropods. Although known only from a very incomplete postcranial skeleton, the preserved bones of Diuqin differ from corresponding elements in other unenlagiines, justifying the erection of the new taxon. Moreover, in several morphological aspects, the humerus of Diuqin appears intermediate between those of geologically older unenlagiines from the Neuquén Basin (e.g., Unenlagia spp. from the Turonian–Coniacian Portezuelo Formation) and that of the stratigraphically younger, larger-bodied Austroraptor cabazai from the Campanian–Maastrichtian Allen Formation. Consequently, the morphology of the new taxon appears to indicate a transitional stage in unenlagiine evolution. Phylogenetic analysis recovers Diuqin as a paravian with multiple plausible systematic positions, but the strongest affinity is with Unenlagiinae. The humerus of the new form exhibits subcircular punctures near its distal end that are interpreted as feeding traces most likely left by a conical-toothed crocodyliform, mammal, or theropod, the latter potentially corresponding to a megaraptorid or another unenlagiine individual. Thus, in addition to filling important morphological and temporal gaps in unenlagiine evolutionary history, the new taxon also offers information relating to the paleoecology of these theropods. Keywords: Unenlagiinae, Dromaeosauridae, Cretaceous, Bajo de la Carpa Formation, Patagonia, South America, Biostratigraphy, Phylogeny, Paleoecology, Megaraptoridae
 Systematic paleontology Theropoda Marsh, 1881 Tetanurae Gauthier, 1986 Coelurosauria Huene, 1920 Paraves Sereno, 1997 Dromaeosauridae Matthew & Brown, 1922 Unenlagiinae Bonaparte, 1999 Diuqin lechiguanae gen. et sp. nov. Holotype: MUCPv 1401, a fragmentary but associated postcranial skeleton consisting of the posteriormost sacral vertebral neural arch, an anterior caudal vertebral neural arch, the nearly complete left humerus, and four unidentified fragments (at least two of which may be small pieces of vertebrae). Accessioned in the Museo de Ciencias Naturales of the Universidad Nacional del Comahue in Neuquén, Neuquén Province, Argentina to ensure free access to qualified researchers in perpetuity. Locality and horizon: The specimen was collected from the isthmus between the southeast coast of Lago Barreales and the northwest coast of Lago Mari Menuco, in Neuquén Province, northwestern Patagonia, Argentina (Fig. 1), from a stratum of the Bajo de la Carpa Formation of the Neuquén Group (Upper Cretaceous: Santonian). Associated fauna: An isolated megaraptorid theropod tooth (MUCPv 1557; see below) and fragmentary bones of an indeterminate sauropod were also found near the site that yielded the D. lechiguanae holotype (MUCPv 1401). The megaraptorid tooth was found approximately 2–3 m from Diuqin, whereas the sauropod fragments were found some 10–12 m away. Diagnosis: First unenlagiine theropod dinosaur to be discovered from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous), exhibiting the following autapomorphies and a unique combination of characters. Autapomorphies: (1) horizontal accessory lamina between spinopostzygapophyseal laminae on posteriormost sacral vertebra; (2) pair of elliptical, bilateral, dorsolaterally–ventromedially oriented foramina immediately anterolateral to base of neural spine in (at least) posteriormost sacral and anterior caudal vertebrae; (3) distolateral deltopectoral ridge of humerus arises on distal half of deltopectoral crest. Unique combination of characters: postzygapophyses of posteriormost sacral vertebra strongly posteriorly projected; humeral deltopectoral crest oriented anteriorly (also present in Austroraptor cabazai); absence of sulcus between deltopectoral crest and humeral shaft (also present in Austroraptor); sharp crest proximal to humeral ectepicondyle with proximally positioned tubercle (also present in Buitreraptor). Etymology: Genus name: Diuqin (from Mapuzungun, the language of the Mapuce people indigenous to the region where the fossil was found), bird of prey. Species name: lechiguanae, after Lechiguana, the witch in the 1975 film Nazareno Cruz y el Lobo (directed by eminent Argentinian filmmaker Leonardo Favio) who foresaw that the film’s titular character would become a werewolf. Intended etymology: “Lechiguana’s bird of prey.”   Juan D. Porfiri, Mattia A. Baiano, Domenica D. dos Santos, Federico A. Gianechini, Michael Pittman and Matthew C. Lamanna. 2024. Diuqin lechiguanae gen. et sp. nov., A New unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Argentina. BMC Ecology and Evolution. 24: 77. DOI: 10.1186/s12862-024-02247-w |
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