Some evolutionary features of bryozoans of the genus <Emphasis Type="Italic">Neotrematopora</Emphasis> Morozova and new <Emphasis Type="Italic">Neotrematopora</Emphasis> species from the Devonian of the Salair Ridge and Rudnyi Altai (Russia)

The evolution of the Neotrematopora species is shown to trend in the direction of developing stronger colonies, implemented in different ways: through changes in the diameter of apertures and thickness of walls of autozooecia, changes in the location and number of diaphragms, number of acanthozooecia and mesozooecia, and the degree to which the latter are filled. An increased development of some structural elements of the colony was compensated for by a decrease in the role of others. Based on the general direction of evolution in the genus Neotrematopora and the succession of its species changing each other in time, several phylogenetic lines in the development of the Early Devonian-Early Givetian Neotrematopora species in the Altai-Sayan folded region are outlined. During the Middle Emsian transgression the species of the Salair paleobasin invaded Gornyi Altai, and those of the Gornyi Altai invaded the Salair. New species from the Emsian (N. spinula sp. nov.) and Eifelian (N. alveolata sp. nov., N. ariadnae sp. nov.) stages of the Salair Ridge and from the Emsian Stage (N. rudnoaltaica sp. nov.) of Rudnyi Altai are described.     

The discovery of Eifelian ammonoids in the Central Kyzylkum Desert (Aristantau Mountains,Uzbekistan)

Eifelian ammonoids are described for the first time from the Central Kyzylkum Desert (Uzbekistan, Navoiy Region, Aristantau Mountains). The ammonoid assemblage includes the typical Eifelian genera Fidelites, Subanarcestes (a new species S. aristanensis Nikolaeva sp. nov. is described), and Cabrieroceras, found in association with brachiopods, conodonts, and dacryoconarids. The ammonoid assemblage is similar to that from the Chote? beds of Barrandien and their equivalents in the Urals, Salair, Germany, and Morocco (Subanarcestes macrocephalus Zone), suggesting a connection between the Eifelian Kyzylkum Basin, which was part of the Turkestan Paleoocean, and European, North African, Siberian, and Uralian basins. The ammonoids studied are not associated with black shale and apparently existed in normal marine environments.     

On Mulleripollis gen. nov., a pollen tetrad from the upper cretaceous of the Bengal Basin,West Bengal,India

A tetrahedral tetrad of tricolpate, striate pollen from the Upper Cretaceous subcrop sediments of the Bengal Basin has been described under a new generic name, Mulleripollis gen. nov., with the type species Mulleripollis bolpurensis gen. et sp. nov. It has been noticed that this pollen tetrad is restricted to the Upper Cretaceous Bengal Palynological Zone, which is stratigraphically significant. The natural affinity of the pollen could not be established.     

Pentamerids (Brachiopoda) from the Lower and Middle Devonian of Northeastern Asia

Pentamerids (Brachiopoda) are described from the Lower and Middle Devonian of northeastern Asia: Antirhynchonella cherkesovae sp. nov. belonging to the family Clorindidae and Devonogypa indigirica (Sidjachenko), Vadimia gen. nov. with the type species V. gonensis sp. nov. and V. naanchanensis sp. nov., and Vladimiria gen. nov. with the type species Vl. yanensis sp. nov. all belonging to the subfamily Devonogypinae.     

Late Cretaceous Arman Flora of the Magadan District: Composition, age, and new plant species

The Arman Flora comes from volcanic-sedimentary deposits of the Arman Formation in the Arman River basin and from volcanic and volcanic-sedimentary rocks of the Nel??kandzha-Khasyn Interfluve. It comprises about 80 fossil plant species. The Arman Flora is dated as Turonian and Coniacian because of its similarity to the reliably dated Penzhina and Kaivayam floras of the northwestern Kamchatka Peninsula and Tylpegyrgynai Flora of the Pekul??nei Ridge. This is corroborated by isotopic (U-Pb and ⁴⁰Ar/³⁹Ar) age determination for the plant-bearing layers. New conifer and angiosperm species of the Arman Flora are described: Pagiophyllum parvum sp. nov., Araliaephyllum armanensis sp. nov., Terechovia philippovae sp. nov., and Parvileguminophyllum samylinae sp. nov.     

New Cambrian lobopods and chaetognaths of the Siberian Platform

The association of isolated remains of lobopods with a netlike structure, including plates of Microdictyon rozanovi sp. nov. and sclerites with spinelike process of Onychomicrodictyon spiniferum gen. et sp. nov., as well as saberlike sclerites of Protohertzina yudomica sp. nov. interpreted as grasping spines of chaetognaths, is described from the middle part of the Inikan Formation of the Toyonian Stage of the Lower Cambrian (Lermontovia dzevanovskii Zone). The diagnoses and species composition of the genera Microdictyon and Protohertzina are refined.     

Apophyses,verticiles, and denticles in skeletons of Late Paleozoic radiolarians of the subfamily Entactiniinae

Morphostructural analysis of secondary skeletal elements, such as apophyses on the main spines and verticiles on the secondary spines of certain Late Paleozoic radiolarians of the subfamily Entactiniinae allow their taxonomic rank to be raised to genus. The presence of denticles on the secondary spines is only evidence of particular species. Three skeleton morphotypes are established: primary morphotype A, verticillate morphotype B, and apophyseal morphotype C. A new species, Entactinia mariannae sp. nov., and two new genera, Apophysiacus gen. nov. with five species, A. ichikawai (Caridroit et De Wever, 1984), A. minuta (Feng, 2007), A. praepycnoclada (Nazarov et Ormiston, 1983), A. pycnoclada (Nazarov et Ormiston, 1985), and A. sakmaraensis (Kozur et Mostler, 1989), and Verticillides gen. nov. with three species, V. nazarovi nom. nov., V. nestellae sp. nov., and V. verticillatus sp. nov., are described.     

A new species of Vasseuromys (Gliridae,Mammalia) from the Upper Oligocene of the Ebro Basin (Spain)

In this paper, a new species of Vasseuromys, V. bergasensis sp. nov., from the locality of Bergasa (Ebro Basin, Spain), is described. Bergasa contains a fauna belonging to the Late Oligocene (zone MP30), composed—among other species—of Issiodoromys pseudanaema and Rhodanomys transiens. The main diagnostic features of V. bergasensis sp. nov. are the presence of a long centrolophid (fused or not to the mesoconid) in the lower molars, a large reduction in the number and length of extra ridges in the upper and lower molars, the absence of extra ridges between metalophid and centrolophid and between centrolophid and mesolophid, and the absence of the metatrope in more than half the specimens of the upper teeth M1 and M2. V. bergasensis sp. nov. is similar in size to V. elegans and smaller than the other members of the genus. The age and simple dental pattern of the new species of Vasseuromys allow us to hypothesize about relationships within the genus.     

New gall midges of the subfamily Lestremiinae (Diptera, Cecidomyiidae) from the Rovno amber

Two new genera and eight new species of the gall midges subfamily Lestremiinae, viz. Berestella insuperabilis gen. et sp. nov., Monardia impellucida sp. nov., Xylopriona aristata sp. nov. (Micromyini), Aprionus improvisus sp. nov., A.? vlaskini sp. nov. (Aprionini), Vicemyia immediata gen. et sp. nov. (Peromyiini), Cordylomyia cauta sp. nov. (Campylomyzini) and Bryomyia necessaria sp. nov. (Bryomyiini) from the Late Eocene Rovno amber are described. New combinations, i.e., Cordylomyia declinata (Fedotova, 2004), comb. nov. and Cordylomyia magnifica (Nel et Prokop, 2006), comb. nov. (both are transferred from Neurolyga) are proposed. No species in common with the fauna from the Baltic amber are recorded.     

Xenophyophores (Rhizaria,Foraminifera), including four new species and two new genera,from the western Clarion-Clipperton Zone (abyssal equatorial Pacific)

The Clarion-Clipperton Zone (CCZ) occupies a vast swathe of the Pacific with extensive polymetallic nodule deposits. Eastern and central parts host diverse assemblages of xenophyophores (megafaunal agglutinated foraminifera). Here we describe xenophyophores obtained using a Remotely Operated Vehicle from the western CCZ. Eleven distinct forms include two known species, Stannophyllum zonarium Haeckel, 1888 and Aschemonella monile Gooday and Holzmann in Gooday et al., 2017b. Another four are described as new species based on morphological and genetic data. In Abyssalia foliformis gen. nov., sp. nov. and Abyssalia sphaerica sp. nov. the flattened or spherical test comprises a homogeneous framework of sponge spicules. Psammina tenuis sp. nov. has a delicate, thin, plate-like test. Moanammina semicircularis gen. nov., sp. nov. has a stalked, fan-shaped test and is genetically identical to ‘Galatheammina sp. 6’ of Gooday and co-workers from the eastern CCZ. Sequence data revealed a spherical ‘mudball’, which disintegrated and cannot be formally described, to be a novel xenophyophore. Finally, four morphospecies are represented by dead tests: Psammina spp., Reticulammina sp., and an unknown genus with a unique test structure. This collection enhances our knowledge of Pacific xenophyophore diversity and provides the first genetic confirmation of wide geographic ranges for abyssal species.     

Les Pachyerymnoceras (Pachyceratidés,Périsphinctacés,Ammonites) du Callovien moyen et supérieur de la région de Saida (Algérie occidentale). Origine phylétique et biogéographie des Pachyceratidés

The genus Pachyerymnoceras, with four new species,is described for the first time in Western Algeria. The genus first appears in the Middle Callovia (Coronatum Zone) as in Saudi Arabia. It is represented in the Saida region by uncommon P. praecox nov. sp. followed during the Upper Callovian (Athleta Zone) by specimens belonging to P. flamandi sp. nov., P. kmerense nov. sp. and P. saidense nov. sp. Every species is represented by a dimorphic pair.Pachyceratidae are put into Perisphinctaceae. If Pachyerymnoceras arises from Erymnoceras, a genus suddenly appearing during the Middle Callovian on northern and southern Tethyan borders, the origin of Erymnoceras is still unknown. Three phylogenetic hypothesis are considered here. Erymnoceras may have evolved during Lower Callovian: 1) from serpenticonic Tethyan Pseudoperisphinctinae like Choffatia (Subgrossouvria); 2) from Tulitids via ellipticoncic Bullatimorphites (Kheraiceras); 3) through a double lineage arisen in Subboreal and Tethyan platyconic Proplanulitids.Pachyceratids have a wide paleobiogeographic distribution in NW Europe and on the Tethyan margins. The genus Pachyerymnoceras evolves in Ethiopian Province of the Tethyan Realm. Some species migrate into Indo-Malagasian Province and others, through the south Tethyan border came to Europe were they are found restricted to Upper Callovian (Athleta and Lamberti Zones). Therefore this migration has a duration of two or even three zones.     

Lacewings of the family Osmylidae (Insecta: Neuroptera) from the Upper Jurassic of Asia

Three new genera and five new species of osmylid lacewings are described from the locality Karatau (Kazakhstan, Upper Jurassic): Jurosmylus parvulus sp. nov. (Protosmylinae), Ensiosmylus acutus gen. et sp. nov. (Spilosmylinae), Kolbasinella elongata gen. et sp. nov. (Gumillinae), Arbusella bella gen. et sp. nov. and Jurakempynus arcanus sp. nov. (Kempyninae). Another new osmylid species (Jurakempynus sublimis sp. nov.) is described from the Upper Jurassic of Mongolia (Shar-Teg locality). The quantitative compositions of the osmylid faunas of Karatau and Shar-Teg are discussed.     

The genus <Emphasis Type="Italic">Keppleritiana</Emphasis> gen. nov. (Stephanoceratidae,Ammonoidea) from the Upper Bajocian of the Northern Caucasus

A new ammonite genus of the subfamily Garantianinae, family Stephanoceratidae, from the Upper Bajocian Strenoceras niortense Zone in the Bolshoi Zelenchuk River basin (Karachay-Cherkessia), with two new species from two different localities, is established. The type species Keppleritiana rostovtsevi gen. et sp. nov. is homeomorphic to some species of the Upper Bathonian–Lower Callovian genus Kepplerites (Fam. Kosmoceratidae) but is distinguished by the presence of a ventral furrow in adults. An isolated valve of an aptychus possibly belonging to this species is illustrated. Keppleritiana graebensteini sp. nov. has a more archaic morphology and is apparently ancestral to the type species. The macroconchs and microconchs of both species are described.     

Alilepus meini nov. sp. (Leporidae,Lagomorpha) from the Early Messinian of Tuscany (central-western Italy)

Alilepus meini nov. sp., a new leporid known only from the Early Messinian of central-western Italy (Baccinello-Cinigiano basin, V3 faunal assemblage; Tuscany), is described here. A. meini nov. sp. is an endemic taxon – not inherited from the older Tusco-Sardinian assemblages – of the continental and balanced BCB V3 fauna. The peculiarities of A. meini nov. sp. mainly reside in the occlusal surface of p3 (very large anteroconid, extremely short talonid, deep and crenulated posterior flexids, extremely thin protoisthmus) and P3 (wide hypoflexus). A. meini nov. sp. seems closely related to Alilepus turolensis, as testified by shared morphological characters (globous anteroconid and deep protoflexid, very thin protoisthmus). Palaeobiogeographical evidences support morphological data as A. meini nov. sp. and A. turolensis are the only two species of the genus present in western Europe.     

Taxonomic review of the genus Pseudostegania Butler, 1881, with description of four new species and comments on its tribal placement in the Larentiinae (Lepidoptera: Geometridae)

The genus Pseudostegania Butler is revised. In addition to the two species known, four species are described as new: P. lijiangensis sp. nov. from Yunnan Province, P. qinlingensis sp. nov. from Gansu and Shaanxi Provinces, P. zhoui sp. nov. from Sichuan Province (China) and P. burmaensis sp. nov. from Burma (Myanmar); two species are newly combined with Pseudostegania: P. distinctaria (Leech, 1897), comb. nov. and P. yargongaria (Oberthür, 1916), comb. nov. All the known species are redescribed and lectotypes are designated for P. defectata (Christoph, 1881), P. distinctaria and P. yargongaria. The generic characters, based on all species, are summarized. The tribal placement of Pseudostegania is discussed. Illustrations of moths and genitalia are presented.     

Late Middle to Late Frasnian Atrypida, Pentamerida, and Terebratulida (Brachiopoda) from the Namur-Dinant Basin (Belgium)

In the Namur-Dinant Basin (Belgium), the last Atrypida and Pentamerida originate from the top of the Upper Palmatolepis rhenana Zone (Late Frasnian). Within this biozone, their representatives belong to the genera Costatrypa, Desquamatia (Desquamatia), Radiatrypa, Spinatrypa (Spinatrypa), Spinatrypina (Spinatrypina?), Spinatrypina (Exatrypa), Waiotrypa, Iowatrypa and Metabolipa. No representative of these orders occurs within the Palmatolepis linguiformis Zone. The disappearance of the last pentamerids, mostly confined to reefal ecosystems, is clearly related to the end of the edification of the carbonate mounds; it precedes shortly the atrypid one. This event, resulting from a transgressive episode, which induces a progressive and dramatic deterioration of the oxygenation conditions, takes place firstly in the most distal zones of the Namur-Dinant Basin (southern border of the Dinant Synclinorium; Lower P. rhenana Zone). It is only recorded within the Upper P. rhenana Zone in the Philippeville Anticlinorium, the Vesdre area, and the northern flank of the Dinant Synclinorium. It would seem that the terebratulids were absent during the Famennian in this basin, probably due to inappropriate facies. Among the 13 species described or briefly discussed (Palmatolepis hassi to Upper P. rhenana zones), Pseudoatrypa godefroidi nov. sp. and Spinatrypina (Exatrypa) marmoris nov. sp. are proposed as new.     

New Species of <Emphasis Type="Italic">Inoceramus</Emphasis>-like Bivalves of the Subfamily Kolymiinae from the Middle Permian of Northeastern Asia

Middle Permian Inoceramus-like bivalves of the genera Kolymia Licharew and Cyrtokolymia Astafieva endemic to the East Boreal Biogeographic Realm are considered. Cyrtokolymia, previously regarded by the author as endemics of the Verkhoyansk–Okhotsk Province and including only the type species, are also recorded in the Kolyma–Omolon Province, where they are represented by the endemic species C. bobini sp. nov. An emended diagnosis of the genus Cyrtokolymia is provided. The genus Kolymia comprises about 30 species. The greatest diversity of Kolymia (24 species, 13 of which are endemic) is known from the Verkhoyansk–Okhotsk Province, which is the center of diversification of this genus. The Kolyma–Omolon Province is characterized by 12 species, only three of which are endemic. In other provinces of the East Boreal Realm, only individual members of Kolymia are known. From the Middle Permian of the Omolon Massif, northern Verkhoyansk Region, and Penzhinsky Ridge, the following new species are described: Kolymia posneri Muromzeva, Kusnezov et Biakov, sp. nov., K. pontoneica Biakov, sp. nov., K. simkiniformis Biakov, sp. nov., and Cyrtokolymia bobini Biakov, sp. nov.     

New mayflies (Insecta: Ephemerida = Ephemeroptera) from the Upper Mesozoic locality of Khasurty,Western Transbaikalia

A new genus and four new species are described from the Upper Mesozoic locality of Khasurty, Western Transbaikalia: Mesobaetis crispa sp. nov. and Proameletus branchiatus sp. nov. from the family Siphlonuridae s. l., Furvoneta khasurtensis sp. nov. from Mesonetidae, and Baikalogenites firmus gen. et sp. nov. from the family Hexagenitidae. One poorly preserved specimen is identified as Mesogenesia from the family Mickoleitiidae. The unique mayfly generic assemblage of this locality, its possible age, and ecology are discussed.     

New Weevils (Coleoptera,Curculionoidea) from the Eocene of the Green River,United States: Part 1

New genera, Pseudochirotenon gen. nov. (with the type species P. eocaenicus sp. nov.), Archaeoheilus gen. nov. (type species A. scudderi sp. nov.), Primocentron gen. nov. (type species P. wickhami sp. nov.), and Pseudophaops gen. nov. (type species Otiorhynchus perditus Scudder, 1876), and new species, Pseudochirotenon eocaenicus sp. nov., Perapion rasnitsyni sp. nov., Archaeoheilus scudderi sp. nov., A. ovalis sp. nov., Primocentron wickhami sp. nov., and Eudiagogus vossi sp. nov., from the Early–Middle Eocene of the Green River are described. New combinations of names (Apionion evestigatum (Scudder, 1893), comb. nov., Archaeoheilus packardii (Scudder, 1893), comb. nov., A. provectus (Scudder, 1876), comb. nov., A. deleticius (Scudder, 1893), comb. nov., A. lacoei (Scudder, 1893), comb. nov., Pseudophaops perditus (Scudder, 1876), comb. nov.) are established. The first fossil records of the tribe Ecelonerini from the New World and genus Perapion from the Green River Formation are provided.     

New bibionomorpha (Insecta: Diptera) from the Jurassic of Asia

The new species Protorhyphus rohdendorfi sp. nov. (Protorhyphidae), Mesorhyphus handlirschi sp. nov., and M. hennigi sp. nov. (Anisopodidae), Procramptonomyia ponomarenkoi sp. nov. and P. kovalevi sp. nov. (Procramptonomyiidae) are described from the Upper Jurassic deposits of Mongolia (Shar Teg); some features of Archirhyphus asiaticus Rohdendorf, 1964 are revealed. The latter two species are also known from the locality of Karatau (Kazakhstan, J_2/3). The genus Tega Blagoderov, Krzemi??ska, and Krzemi??ski, 1993 is transferred from the family Cramptonomyiidae into Anisopodidae (Teginae subfam. nov.).