scholarly journals New Species of Praepusa (Carnivora, Phocidae, Phocinae) from the Netherlands Supports East to West Neogene Dispersal of True Seals / Новый вид Praepusa (Carnivora, Phocidae, Phocinae) из Нидерландов, подтверждающий распростра- нение настоящих тюленей в неогене с востока на запад

2015 ◽  
Vol 49 (1) ◽  
pp. 57-66 ◽  
Keyword(s):  
New Species ◽  
Sexual Dimorphism ◽  
The Netherlands ◽  
Late Miocene ◽  
Middle Miocene ◽  
Lateral Wall ◽  
Eastern Paratethys ◽  
Early Pliocene

Abstract Examination of new fossils (humerus and sacrum) from The Netherlands reveals morphologically-distinctive characters, allowing the description of a new Late Miocene - Early Pliocene representative (Praepusa boeska sp.n.) of the subfamily Phocinae. Diagnostic humeral differences in shape of the coronoid (oval in males vs triangular in females) and depth of the olecranon fossae (shallow in males vs deep in females), as well as the presence of a rounded first ventral foramen and thick lateral wall in the male sacrum, reveal the first evidence of sexual dimorphism in the genus Praepusa. The newly described species adds information on the distribution of true seals, supporting the westward dispersal of this genus across the Paratethys. Strong endemism from closure of the Paratethys, and climatic, geological and stratigraphic diff erences indicate that Praepusa first inhabited the Eastern Paratethys (Early - Middle Miocene, 16.5-13.6 Ma) before dispersing to the Central (Middle Miocene, 13.6-11.2 Ma) and, later, Western (Late Miocene - Early Pliocene, 11.6-3.6 Ma) Paratethys. The Pr. boeska fossils are the youngest to date and have been found the furthest west of any previously described material of this genus. These findings help explain the origin and dispersal among described species of the genus Praepusa in comparison with other genera of the subfamily Phocinae.

scholarly journals The distribution of <i>Triebelina raripila</i> and <i>Carinocythereis carinata</i> (Ostracoda) from the Middle Miocene of the Central Paratethys and their palaeogeographic implications

1998 ◽  
Vol 17 (2) ◽  
pp. 125-130 ◽  
Author(s):  
J. Szczechura
Keyword(s):  
Shallow Water ◽  
Late Miocene ◽  
Middle Miocene ◽  
Early Miocene ◽  
Central Paratethys ◽  
Eastern Paratethys ◽  
Main Species ◽  
Late Middle Miocene ◽  
The Mediterranean

Abstract. Late Middle Miocene (Upper Badenian) strata of the Fore-Carpathian Depression of Poland yield a shallow-water ostracod fauna which contains the species Triebelina raripila (G. W. Müller, 1894) and Carinocythereis carinata (Roemer, 1838). The palaeobiogeographic distribution of the two main species suggests, that in the late Middle Miocene, Central Paratethys was still connected to the Mediterranean, although still separated from the Eastern Paratethys and from southeastern Eurasia. The continuous occurrence of Triebelina raripila and Carinocythereis carinata in the Mediterranean basins, from the Early Miocene to Recent, indicates that marine conditions existed throughout, thereby allowing them to survive the Late Miocene salinity crisis.

Confirmation of a New Species of Small Dasyurid Marsupial by Electrophoretic Analysis of Enzymes and Proteins

1983 ◽  
Vol 31 (5) ◽  
pp. 743 ◽  
Author(s):  
DW Cooper ◽  
A Woolley
Keyword(s):  
New Species ◽  
Genetic Distance ◽  
Electrophoretic Mobility ◽  
Late Miocene ◽  
Electrophoretic Analysis ◽  
Early Pliocene ◽  
Antechinus Stuartii ◽  
A New Species ◽  
Nei's Genetic Distance

Eight species of dasyurid marsupials have been typed for the electrophoretic mobility of 18 of their enzymes and proteins. The species were the Ningbing antechinus (Pseudantechinus sp.), Pseudantechinus macdonnellensis (formerly Antechinus macdonnellensis), Parantechinus apicalis (formerly Antechinus apicalis), Parantechinus bilarni (formerly Antechinus bilarni), Antechinus stuartii, Dasykaluta rosamondae (formerly Antechinus rosamondae), Dasycercus cristicauda and Planigale maculata. The results show that the Ningbing antechinus is a probable new species. The data suggest that its nearest relative is Dasycercus cristicauda. Analysis of the results by calculation of a modified x2 and an approximation to Nei's genetic distance indicates that all species have been the product of one radiation, possibly in the late Miocene or early Pliocene. Two races of P. macdonnellensis probably exist, separable by their transferrin types.

scholarly journals First record of Toxodontidae (Mammalia, Notoungulata) from the late Miocene–early Pliocene of the southern central Andes, NW Argentina

2017 ◽  
Vol 91 (3) ◽  
pp. 566-576 ◽  
Author(s):  
Ricardo A. Bonini ◽  
Gabriela I. Schmidt ◽  
Marcelo A. Reguero ◽  
Esperanza Cerdeño ◽  
Adriana M. Candela ◽  
...  
Keyword(s):  
New Species ◽  
Late Miocene ◽  
First Record ◽  
Phylogenetic Position ◽  
New Taxon ◽  
Mandibular Ramus ◽  
Early Pliocene ◽  
Southern Central ◽  
The Right ◽  
A New Species

AbstractA new species of toxodontid notoungulate, Xotodon maimarensis n. sp., is described from the Maimará Formation (late Miocene–early Pliocene), Jujuy Province, northwestern Argentina. This is the first record of a toxodontid from the Eastern Cordillera. The specimen is housed at the Museo de Geología, Mineralogía y Paleontología, Instituto de Geología y Minería de la Universidad Nacional de Jujuy. It consists of an incomplete mandible preserving the right mandibular ramus with part of the dental series, partially preserved symphysis with all the incisors, and a small portion of the left ramus without teeth. The following characters distinguish it as a new taxon: symphysis long and narrow with slight divergence of its lateral borders; strong procumbence of lower incisors and deeply implanted i3; chin angle lower than in X. major and X. cristatus and bulging labial keel limiting strong lateral concavities. Comparative analysis in the context of the recently revised Neogene Toxodontidae indicates that the Maimará specimen shares mandibular features and dental characters with Xotodon and Mixotoxodon, differing from the latter by the more upraised symphysis. The phylogenetic position of Xotodon maimarensis n. sp. supports the taxonomic interpretation of the studied specimen as a new species of Xotodon. This new Toxodontidae increases the knowledge of the diversity and radiation of this group of notoungulates in northwest Argentina.

Development of the New Hebrides archipelago

1975 ◽  
Vol 272 (918) ◽  
pp. 277-285 ◽  
Keyword(s):  
Late Miocene ◽  
Middle Miocene ◽  
First Episode ◽  
Late Oligocene ◽  
Calc Alkaline ◽  
Land Area ◽  
Early Pliocene ◽  
The Third ◽  
New Hebrides ◽  
Volcanic Islands

The general geology of the New Hebrides is summarized in terms of three volcanic and two main sedimentary episodes. Calc-alkaline volcanics ol the first episode occur on the western islands and accumulated mainly on the submarine slopes below small reef-fringed volcanic islands in Late Oligocene to Middle Miocene times. During the Late Miocene and Early Pliocene wholly submarine tholeiitic or high-Al volcanics accumulated in the eastern and southern part of the New Hebrides while calcareous sediments were forming in the western islands. During the third volcanic phase, of Pliocene to Recent age, regional uplift has led to most of the volcanics being subaerial while extensive flights of limestone terraces occur round the older islands. In consequence the land area of the New Hebrides has increased rapidly during Quaternary times. The landforms produced are briefly described.

scholarly journals Taxonomic revision and new species/subspecies of Middle-Late Miocene (Bessarabian) miliolids of the Family Hauerinidae Schwager from Georgia — Eastern Paratethys

2009 ◽  
Vol 60 (5) ◽  
pp. 419-430
Author(s):  
Lamara Maisuradze ◽  
Kakhaber Koiava ◽  
Silvia Spezzaferri
Keyword(s):  
New Species ◽  
Late Miocene ◽  
Taxonomic Revision ◽  
Eastern Paratethys ◽  
The Family ◽  
Shape And Size

Taxonomic revision and new species/subspecies of Middle-Late Miocene (Bessarabian) miliolids of the Family Hauerinidae Schwager from Georgia — Eastern ParatethysThree new miliolid taxa from Bessarabian sediments from Georgia (Eastern Paratethys) are described following the classification of Łuczkowska (1972), which has never been used before by ex-Soviet micropaleontologists. They are:Varidentella luczkowskae; Varidentella reussi(Bogdanowicz) subsp.costulata; andAffinetrina voloshinovae(Bogdanowicz) subsp.eldarica.This classification takes into account the morphology of the aperture and the shape and size of teeth as criteria to distinguish the species. This study contributes important criteria which will help to unify the taxonomical inconsistencies between the Eastern, Central and Western Paratethyan miliolids.

New species of Agriotherium (Mammalia, Carnivora) from the late Miocene to early Pliocene of central Myanmar

2011 ◽  
Vol 42 (3) ◽  
pp. 408-414 ◽  
Author(s):  
Shintaro Ogino ◽  
Naoko Egi ◽  
Zin-Maung-Maung-Thein ◽  
Thaung-Htike ◽  
Masanaru Takai
Keyword(s):  
New Species ◽  
Late Miocene ◽  
Early Pliocene

Total evidence analysis of the phylogenetic relationships of bandicoots and bilbies (Marsupialia: Peramelemorphia): reassessment of two species and description of a new species

Zootaxa ◽  
2018 ◽  
Vol 4378 (2) ◽  
pp. 224 ◽  
Author(s):  
KENNY J. TRAVOUILLON ◽  
MATTHEW J. PHILLIPS
Keyword(s):  
New Species ◽  
Late Miocene ◽  
Phylogenetic Relationships ◽  
Taxonomic Status ◽  
Molecular Data ◽  
Total Evidence ◽  
Bayesian Analyses ◽  
Early Pliocene ◽  
Evidence Analysis ◽  
A New Species

The phylogenetic relationships of bandicoots and bilbies have been somewhat problematic, with conflicting results between morphological work and molecular data. This conflict makes it difficult to assess the taxonomic status of species and subspecies within this order, and also prevents accurate evolutionary assessments. Here, we present a new total evidence analysis, combining the latest cranio-dental morphological matrix containing both modern and fossil taxa, with molecular data from GenBank. Several subspecies were scored in the morphological dataset to match the molecular data available. Both parsimony and Bayesian analyses were performed, giving similar topologies except for the position of four fossil taxa. Total evidence dating places the peramelemorphian crown origin close to the Oligocene/Miocene boundary, and the radiations of most modern genera beginning in the Late Miocene or Early Pliocene. Our results show that some species and subspecies require taxonomic reassessment, and are revised here. We also describe a new, extinct species from the Nullarbor region. This suggests that the number of recently extinct peramelemorphian species is likely to further increase. 

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