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Tuesday, November 12th, 2024
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| 9:05a | [Paleontology • 2024] Dianmeisaurus mutaensis • A New pachypleurosaur (Reptilia: Sauropterygia) from the Middle Triassic of southwestern China and its phylogenetic and biogeographic implications
Abstract After the devastating Permo-Triassic Mass Extinction, several new groups of large reptilian predators invaded the sea in the early part of the Triassic. Among these predators, sauropterygians, consisting of placodonts, pachypleurosaurs, nothosaurs and pistosaurs (including the iconic plesiosaurs), displayed the greatest diversity at both the generic and species levels, and persisted from the Early Triassic to the Late Cretaceous. Here, we report a new species of Pachypleurosauria, Dianmeisaurus mutaensis sp. nov., from a recently discovered Lagerstätte in the Upper Member of the Anisian Guanling Formation. The only known specimen of the new species was collected from a quarry near Muta village, Luxi County, Yunnan Province, South China. Our new phylogenetic analysis based on a novel data matrix recovered the new taxon as a sister group to Dianmeisaurus gracilis—a small pachypleurosaur from the Middle Triassic Luoping biota. The new phylogenetic analysis also collapsed the monophyly of the traditionally recognized Eusauropterygia. Pistosauroidea, Majiashanosaurus, and Hanosaurus comprise the consecutive sister groups to a new clade including Pachypleurosauria and Nothosauroidea. A monophyletic Pachypleurosauria, within which the clade consisting of Dianmeisaurus and Panzhousaurus occupies the basal-most position, is recovered by this study. The clade consisting of Dawazisaurus and Dianopachysaurus forms the sister group to the remaining pachypleurosaurs included in this study. Since Dianmeisaurus, Panzhousaurus, Dawazisaurus, and Dianopachysaurus are all exclusively known from South China, our study provides further evidence to the hypothesis that pachypleurosaurs had a palaeobiogeographic origin in the eastern Tethys. Keywords: Marine reptiles, Pachypleurosauria, Dianmeisaurus, Phylogeny, Palaeobiogeographic origin Systematic palaeontology Sauropterygia Owen, 1860 Eosauropterygia Rieppel, 1994 Pachypleurosauria Nopcsa, 1928 Dianmeisaurus Shang & Li, 2015
Dianmeisaurus mutaensis sp. nov. Type locality: Muta Village, Luxi County, Yunnan Province, China. Type horizon: Upper Member of Guanling Formation, Anisian, Middle Triassic. Etymology: Named after Muta village where the holotype was collected. Diagnosis: A pachypleurosaur with following autapomorphies among pachypleurosaurs: 23 cervical vertebrae, 20 dorsal vertebrae, and two sacral vertebrae; postfrontal extending posteriorly to a level beyond the middle of parietal; last dorsal rib stout and shorter than the first sacral rib; phalangeal formula of manus and pes 2-3-4-4-2 and 1-2-3-4-3 respectively. In addition to the above-mentioned autapomorphies, Dianmeisaurus mutaensis also differs from D. gracilis in the following morphological characters: maxilla enters the external naris; anterior process of the frontal does not extend beyond the anterior margin of the orbit; postfrontal excluded from the upper temporal fenestra; coronoid process absent. Yi-Wei Hu, Qiang Li and Jun Liu. 2024. A New pachypleurosaur (Reptilia: Sauropterygia) from the Middle Triassic of southwestern China and its phylogenetic and biogeographic implications. Swiss Journal of Palaeontology. 143. DOI: doi.org/10.1186/s13358-023-00292-4 | ||||||||||
| 10:53a | [Botany • 2024] Telipogon leisberthvelezii (Orchidaceae: Epidendroideae: Oncidiinae) • A New orchid Species from the Cordillera del Cóndor in Ecuador
Summary Telipogon leisberthvelezii Iturralde, M.M.Jiménez & H.Garzón, a new species of orchid, discovered in the Cordillera del Cóndor in southern Ecuador, is described and illustrated and its morphological similarities to other species are discussed. The new species is morphologically most similar to T. jostii (Dodson) N.H.Williams & Dressler but differs in the ellipsoid-obovoid petals with a bilobed base, the lip having a deltoid midlobe and dolabriform lateral lobes and a lower density of setae on the column. It is currently known from a single locality only, occurring as an epiphyte in lower montane forest. Key Words: Lower montane forest, miniature Telipogon, southern Ecuador, Stellilabium, Telipogon jostii, Telipogon pogonostalix, Zamora Chinchipe Province  Telipogon leisberthvelezii Iturralde, M.M.Jiménez & H.Garzón sp. nov. ETYMOLOGY. The species is named after Leisberth Vélez Abarca, an Ecuadorian orchidologist from El Pangui, who first spotted the plant here used as the type specimen. Thanks to his avid interest in orchid identification, he has described several new orchid species from the Cordillera del Cóndor region. Marco M. Jiménez, Carlos Martel, Henry X. Garzón-Suárez, Luis E. Baquero, Viviana Mashendo & Gabriel A. Iturralde. 2024. Telipogon leisberthvelezii (Orchidaceae: Oncidiinae), A New orchid Species from the Cordillera del Cóndor in Ecuador. Kew Bulletin. DOI: 10.1007/s12225-023-10145-5 | ||||||||||
| 11:48a | [Botany • 2024] Impatiens minnamparaensis (Balsaminaceae) • A New Species from the Nelliyampathy Region of southern Western Ghats, India
Abstract A new species, Impatiens minnamparaensis, belonging to section uniflorae is described and illustrated from southern Western Ghats of Kerala. It is morphologically similar to Impatiens sasidharanii but can easily be distinguished in having ovate-oblong leaf, milky white distal lobe of keel petal, red blotch on lower sepal, pollen architecture and capsule morphology. It is also showing similarities with I. rupicola but differs in shape of lower sepal, shape of distal lobe, number of flowers per axil, anther, pollen and capsule morphology. Impatiens minnamparaensis is assessed here as Endangered based on the categories and criteria of the IUCN Red List. Nelliyampathy, Impatiens, taxonomy, uniflorae, Eudicots  Impatiens minnamparaensis Sindhu Arya, Ambika, Alen Alex, V.Suresh, Sojan & V.S.A.Kumar sp. nov.  Arya Sindhu, Venugopalan Nair Saradhamma Anilkumar, Ambika Viswanathan Pilllai, Alen Alex Philip, Jose Sojan and Veerankutty Suresh. 2024. A New Species of Impatiens from the Nelliyampathy Region of southern Western Ghats, India. Phytotaxa. 650(1); 83-92. DOI: doi.org/10.11646/phytotaxa.650.1.7  | ||||||||||
| 12:06p | [Herpetology • 2024] Scincella fansipanensis • A New Species of the Genus Scincella (Squamata: Scincidae) from Mount Fansipan, Hoang Lien Son Range, northwestern Vietnam
Abstract We describe a new species of the genus Scincella Mittleman, 1950 from northwestern Vietnam, based on a new collection of ground skinks from Mount Fansipan of the Hoang Lien Son Range in Lao Cai Province. Scincella fansipanensis sp. nov. is distinguished from other Scincella species in the Indochina region and southern China by body size (SVL), separation of prefrontals, number of midbody scale rows, paravertebral scale rows, nuchals and subdigital lamellae on toe IV, separation of toe from finger when limbs are adpressed along the body, and dorsal color pattern. The new species is further distinguished from its congeners by uncorrected genetic distances of 14.60–21.41% (COI gene). The new species is currently known only from high elevation areas of Mt. Fansipan in Vietnam. Reptilia, Ground skink, genetic divergence, morphological characteristics, taxonomy, Lao Cai Province
Scincella fansipanensis sp. nov. Diagnosis. Scincella fansipanensis sp. nov. is distinguished from other congeners by a combination of the following morphological characteristics: size medium (SVL up to 59.0 mm; AG up to 36.5 mm); 22 (rarely 24) midbody scale rows, smooth; 60–68 paravertebral scale rows; 58–64 ventral scale rows; prefrontals separated from each other; five (rarely six) supraciliaries; two to six nuchals; ear opening present, tympanum deeply sunk, without lobules; limbs short, toe separated from finger when limbs adpressed; toe IV with 10–12 subdigital lamellae, smooth; and dorsal surface of body with irregularly shaped dark spots. Etymology. The specific name “fansipanensis” is derived from Mt. Fansipan. As the common name, we suggest Fansipan ground skink (English) and Thằn lằn cổ fansipan (Vietnamese). Shinya Okabe, Masaharu Motokawa, Yuki Koizumi, Truong Quang Nguyen, Tao Thien Nguyen and Hai Tuan Bui. 2024. A New Species of the Genus Scincella (Squamata: Scincidae) from Mount Fansipan, Hoang Lien Son Range, northwestern Vietnam. Zootaxa. 5537(3); 407-423. DOI: doi.org/10.11646/zootaxa.5537.3.7 | ||||||||||
| 12:13p | [Botany • 2024] Euphorbia duerrii (Euphorbiaceae) • A New Species from the Dhule District of Maharashtra, India
Abstract A new succulent species Euphorbia duerrii is described and illustrated from the Dhule District of Maharashtra state in India. This new species is allied to Euphorbia sahyadrica but differs in shape of the podaria, short obovate leaves, 2–4 times branched peduncles, fimbriate bracts in male flowers and colliculate capsules. Euphorbia duerrii sp. nov. belongs to Euphorbia section Euphorbia based on the presence of succulent stems, spine shields, ecarunculate seeds, and glands of the cyathium lacking appendages. Keyword: Euphorbia duerrii, Euphorbia nivulia, Euphorbia sahyadrica, subgenus Euphorbia, Maharashtra, India
Euphorbia duerrii Sarojin. & Raja Kullayisw. sp. nov. Type: INDIA. Telangana State, Yadadri-Bhongir District, Dharmavana Nature Ark, 17.526426N, 78.889749E, 450 m, 23 May 2024, Sarojini Devi and Raja Kullayiswamy DNA-603 (ex-situ plants cultivated from stem cuttings collected from the Dhule District of Maharashtra, the documented original distribution of the species) Holotype (BSID), Isotypes (MH & SKU). Diagnosis: The new taxon is allied to Euphorbia sahyadrica in habit, the presence of terete branches, involucral glands transversely oblong, male flowers in 5 fascicles and ovary trigonous, but it differs in many characters viz. ellipsoid shape of spine shields, (verses a circular); sessile, obovate, obtuse and margin wavy leaves (verses petiolate, elliptic-obovate, attenuate at base, margin entire leaves); four times dichotomously branched peduncle (verses two time branched peduncle); glands transversely oblong glands (verses transversely elliptic glands). Etymology: The species epithet ‘duerrii’ honors William Frederick Dürr who has enjoyed the Flora of the Deccan Plateau since moving with his family to Hyderabad, Telangana State, India in the year 2000.
Naidu Sarojini Devi, Kusom Raja Kullayiswamy. 2024. Euphorbia duerrii (Euphorbiaceae), A New Species from the Dhule District of Maharashtra, India. Taiwania. 69(4); 530-536. DOI: 10.6165/tai.2024.69.530 taiwania.ntu.edu.tw/abstract/2032 | ||||||||||
| 12:16p | [Botany • 2024] Ceratostema gualaquizensis (Ericaceae: Vaccinieae) • A New Species from Ecuador known from previously misidentified specimens and new insights on Ceratostema loucianae
Abstract A species of Ceratostema new to science from southern Ecuador, is described and illustrated as part of ongoing research on biodiversity in the Cordillera Real de Los Andes. Ceratostema gualaquizensis is distinguished by the convex leaves with folded margins at the base, and the axillary, solitary, and tubular flowers with a slightly 5-ribbed corolla that is magenta with apically black lobes. Furthermore, we provide additional information on the newly described Ceratostema loucianae. The taxonomic similarities of these two species are discussed and information about their distribution, habitat, and conservation status are provided. Both species are being sold and cultivated with erroneous/fictitious names by nurseries and private collections, information of which is provided in this paper. Cordillera Real de Los Andes, Morona Santiago, Zamora Chinchipe, southeastern Ecuador, Eudicots
Ceratostema gualaquizensis M.M.Jiménez & H.Garzón, sp. nov. Ceratostema gualaquizensis is distinguished from other members of the genus by the elliptic leaves which are convex with involute margins at the base, the axillary, solitary flowers with the turbinate hypanthium, and the magenta corolla with the apices of the lobes being black, spreading, narrowly linear-triangular, and acuminate. Etymology:—This new species is named after Gualaquiza, the name of the township and municipality where the
new species was found.
Marco M. Jiménez, Gabriel A. Iturralde, J.R. Kuethe, Nadia Lapo-González, Luis E. Baquero, Leisberth Vélez and Henry X. Garzón-Suárez. 2024. Ceratostema gualaquizensis (Ericaceae: Vaccinieae), A New Species from Ecuador known from previously misidentified specimens and new insights on Ceratostema loucianae. Phytotaxa. 671(2); 113-127. DOI: doi.org/10.11646/phytotaxa.671.2.1 | ||||||||||
| 2:50p | [PaleoEntomology • 2024] Palaeorhoptrocentrus tenuicornis, Taphaeus obscurus & Eubazus electrus • New Species of braconid parasitoid wasps from the Subfamilies Doryctinae and Brachistinae (Hymenoptera: Braconidae) from late Eocene Baltic Amber
Abstract Three new fossil species of braconid wasps are described and illustrated from late Eocene Baltic amber: Palaeorhoptrocentrus tenuicornis sp. nov. (Doryctinae), Taphaeus obscurus sp. nov. (Brachistinae: Diospilini), and Eubazus electrus sp. nov. (Brachistinae: Brachistini). Keys to the known species of Palaeorhoptrocentrus Belokobylskij, 2023 and to species of Eubazus Nees, 1812 described from Baltic amber are provided. An illustrated redescription of Blacus (Electroblacus) facialis Brues, 1933 (Brachistinae: Blacini) is also provided, along with digital photographs for the first time of the female of B. (Electroblacus) facialis, whose type material was lost during the World War II. We also provide morphological notes and digital photographs of a male belonging to an undescribed species of Meteorus (Euphorinae). Eocene, parasitoids, wasp, fossil, Diospilini, Blacini, Brachistini, Meteorus   Sergey A. Belokobylskij, Madeline V. Pankowski, Alejandro Zaldívar-Riverón. 2024. New Species of braconid parasitoid wasps from the Subfamilies Doryctinae and Brachistinae from late Eocene Baltic Amber. Palaeoentomology. 7(5); 645–658. DOI: doi.org/10.11646/palaeoentomology.7.5.8  |
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