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Wyświetlanie 1-15 z 22
Tytuł:
New artiodactyl ruminant mammal from the Late Oligocene of Pakistan
Autorzy:
Metais, G
Antoine, P.O.
Marivaux, L.
Welcomme, J.L.
Ducrocq, S.
Powiązania:
https://bibliotekanauki.pl/articles/20876.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Ruminantia
ruminant
Palaeohypsodontus zinensis
mammal
Bovidae
Mammalia
artiodactyl ruminant
Oligocene
Pakistan
Late Oligocene
paleontology
Opis:
Dental and postcranial material of the bovid−like ruminant Palaeohypsodontus zinensis sp. nov. is reported from the Oligocene of the Bugti Hills (Balochistan, Pakistan). This finding extends the geographic distribution of this dentally highly derived ruminant, which was previously restricted to the early Oligocene of Mongolia and China. The inclusion of Palaeohypsodontus within the Bovidae is disputed on the basis of astragalus characters, and the taxonomic status of the Oligo−Miocene Eurasian bovid−like ruminants is briefly discussed. It is concluded that the assignment of Palaeohypsodontus to the Bovidae would be premature. More dental and postcranial material of this genus as well as additional fossils of early bovids are necessary to shed new light on the phylogenetic relationships within the first representatives of that family in Eurasia.
Źródło:
Acta Palaeontologica Polonica; 2003, 48, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Plesiosoricids from Early Oligocene fissure fillings in South Germany, with remarks on plesiosoricid phylogeny
Autorzy:
Ziegler, R
Powiązania:
https://bibliotekanauki.pl/articles/22761.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
plesiosoricid
Early Oligocene
Oligocene
paleontology
fissure filling
Germany
phylogenesis
Mammalia
Lipotyphla
Plesiosoricidae
Butselia
systematics
Opis:
The plesiosoricids from two fissure fillings from Möhren on the Franconian in South Germany are described. All belong to Butselia biveri. Möhren 12 correlates with the early Oligocene standard level Soumailles, corresponding to the Paleogene mammal unit MP 21, and Möhren 13 with the standard level Villebramar, which corresponds to MP 22. These occurrences represent the first record of the genus Butselia in Germany. A review of the known plesiosoricid species and a cladistic analysis of Butselia and Plesiosorex are presented. It shows the basal position of Butselia with respect to Plesiosorex, and the basal position of Plesiosorex soricinoides with respect to the other Plesiosorex species.
Źródło:
Acta Palaeontologica Polonica; 2009, 54, 3; 365-371
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New skeleton from the Early Oligocene of Germany indicates a stem-group position of diomedeoidid birds
Autorzy:
De Pietri, V.L.
Berger, J.-P.
Pirkenseer, C.
Scherler, L.
Mayr, G.
Powiązania:
https://bibliotekanauki.pl/articles/22260.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
new skeleton
skeleton
Early Oligocene
Oligocene
Germany
stem-group position
diomedeoidid bird
bird
Aves
Diomedeoididae
phylogenesis
paleontology
Diomedeoides brodkorbi
Opis:
We report a new specimen of the extinct procellariiform species Diomedeoides brodkorbi (Aves, Diomedeoididae) from the early Oligocene (Rupelian) of Rheinweiler in southwestern Germany. The well−preserved partial skeleton allows the recognition and reassessment of new osteological details that bear on the phylogenetic affinities of diomedeoidids. The presence on the coracoid of a deeply excavated, cup−like facies articularis for the scapula suggests a stem group position of the Diomedeoididae within Procellariiformes, because this trait also occurs in stem−group representatives of several avian groups, as well as in Mesozoic non−neornithine birds, and is a plesiomorphic character. We hypothesize that the similarities of Diomedeoides to extant southern storm−petrels (Oceanitinae), such as the long mandibular symphysis, the small processus supracondylaris dorsalis and the long legs are plesiomorphic for Procellariiformes.
Źródło:
Acta Palaeontologica Polonica; 2010, 55, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Oligocene record of the coral Flabellum from Antarctica
Autorzy:
Gaździcki, Andrzej
Stolarski, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/2052747.pdf
Data publikacji:
1992
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
King George Island
Oligocene
paleontology
Coelenterata (Scleractinia)
Źródło:
Polish Polar Research; 1992, 13, 3-4; 265-272
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Entelodon orientalis n.sp. (Suiformes) from the Oligocene of the Gobi Desert, Mongolia
Entelodon orientalis n.sp. (Suiformes) z Oligocenu Pustyni Gobi, Mongolia
Entelodon orientalis n.sp. (Suiformes) iz oligocena pustyni Gobi, Mongolija
Autorzy:
Dashzeveg, D.
Powiązania:
https://bibliotekanauki.pl/articles/23096.pdf
Data publikacji:
1965
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
Entelodon orientalis
new species
Oligocene
Gobi Desert
Mongolia
Źródło:
Acta Palaeontologica Polonica; 1965, 10, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cyclostomatous Bryozoa from the Polonez Cove Formation (Oligocene) of King George Island, West Antarctica
Autorzy:
Hara, Urszula
Powiązania:
https://bibliotekanauki.pl/articles/2052748.pdf
Data publikacji:
1992
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
King George Island
Oligocene
paleontology
paleoecology
Bryozoa (Cyclostomata)
Źródło:
Polish Polar Research; 1992, 13, 3-4; 255-263
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New specimens of the earliest European passeriform bird
Autorzy:
Mayr, G
Manegold, A.
Powiązania:
https://bibliotekanauki.pl/articles/20488.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Wieslochia weissi
new specimen
bird
Aves
Passeriformes
Oligocene
passeriform bird
paleontology
Opis:
We describe new specimens of the oldest European passeriform bird from the early Oligocene of Germany. This bird has hitherto been known only from a poorly preserved skeleton and we report here a second slab of the same specimen and an additional fragmentary skull. The new specimens allow the description of a new species, Wieslochia weissi gen. et. sp. nov., which lacks apomorphies of crown group Oscines, the taxon including most extant and all European passeriform species. In overall osteology, Wieslochia most closely resembles extant Suboscines but these similarities may be plesiomorphic for Passeriformes. W. weissi differs from the stem species pattern hypothesized for Eupasseres in the morphology of the distal carpometacarpus, the absence of a hooked processus acrocoracoideus (coracoid), and the presence of furrows instead of certain canals on the hypotarsus, and may even be outside crown group Eupasseres, the clade including Oscines and Suboscines. Because the earliest European fossil record of oscine passerines is from the late Oligocene, passerines outside crown group Oscines may have colonized Europe before the arrival of Oscines from the Australian continental plate.
Źródło:
Acta Palaeontologica Polonica; 2006, 51, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new heterosoricid shrew from the lowermost Oligocene of Europe
Autorzy:
Smith, R
Van Den Hoek Ostende, L.W.
Powiązania:
https://bibliotekanauki.pl/articles/21482.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
heterosoricid shrew
shrew
Belgicasorex ramboeri
Mammalia
Oligocene
new species
Europe
Soricomorpha
paleontology
Opis:
The earliest Oligocene faunas of Europe are characterised by a large number of Asian immigrants. One of the classical sites that shows the faunal change after this so−called “Grande Coupure” is Hoogbutsel in Belgium (MP 21). Recently a new locality from the lowermost Oligocene was discovered in Belgium, Boutersem TGV. Here, we describe a new heterosoricid (Mammalia, Soricomorpha), Belgicasorex ramboeri gen. et sp. nov., from these lowermost Oligocene localities. We assume that, like the erinaceid Tetracus nanus Aymard, 1846 and the nyctitheriid Oligonyctia hoffmani Smith, 2004, Belgicasorex ramboeri was one of the Asian immigrants that entered Europe after the “Grande Coupure”.
Źródło:
Acta Palaeontologica Polonica; 2006, 51, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A termite from the Late Oligocene of northern Ethiopia
Autorzy:
Engel, M.S.
Pan, A.D.
Jacobs, B.F.
Powiązania:
https://bibliotekanauki.pl/articles/20549.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
termite
Late Oligocene
Ethiopia
Stolotermitidae
fossil record
geological setting
paleontology
Chilgatermes diamatensis
Opis:
Termites of the family Stolotermitidae are a relict lineage of primitive Isoptera. The fossil record of Stolotermitidae is exceptionally poor, with only two Miocene (Neogene) species documented to date. Herein, a new genus and species of Paleogene termites is described and figured from the Late Oligocene (28–27 Ma, Early Chattian) of northwestern Ethiopia (Amhara Region, Chilga Woreda). Chilgatermes diamatensis gen. et sp. nov., is most similar to genera of the Stolotermitidae, Archotermopsidae, and Termopsidae but can be distinguished on the basis of forewing venational details. The genus is tentatively placed in the Stolotermitidae: Porotermitinae. Chilgatermes diamatensis is the first fossil termite from Ethiopia and, indeed, the first from the entire African continent.
Źródło:
Acta Palaeontologica Polonica; 2013, 58, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Patterns of larval development in Cretaceous pipid frogs
Autorzy:
Rocek, Z
Van Dijk, E.
Powiązania:
https://bibliotekanauki.pl/articles/20793.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Cretaceous
Pipidae
pipid frog
frog
South Africa
Anura
Oligocene
larval development
Israel
paleontology
Opis:
A developmental series of nearly 250 tadpoles of Shomronella jordanica from the Early Cretaceous (Hauterivian) of the Shomron (Samaria) region of central Israel, a small collection (12) of Thoraciliacus rostriceps tadpoles from the Early Cretaceous (Aptian) of Makhtesh Ramon, Israel, and 13 tadpoles from the Late Cretaceous (Campanian/Maastrichtian boundary) of Stompoor, Marydale, South Africa were studied. These were compared with published data on the development of Paleogene (Middle Eocene–Early Oligocene) pipids from Patagonia, and with normal development of the contemporary pipid frog Xenopus. The comparisons of the developmental series of the Cretaceous and contemporary pipid frogs provided data on changes in the developmental pattern, namely of the degree of ossification and other developmental events. In general, it seems that ossification has become considerably delayed in the course of pipid evolution, whereas most anatomical features typical for free living pipid larvae were well established as early as in the Early Cretaceous. Comparisons with the developmental series of specimens from the Late Oligocene Palaeobatrachidae (closely related to the Pipidae) from Bechlejovice near Děčín, Czech Republic revealed that some morphological differences between the two families might be explained by their developmental mode (e.g., formation of the opisthocoelous vertebral centrum in Shomronella). The uncinate process on three anterior pairs of ribs in Shomronella is the character retained in primitive anurans, and indicates close phylogenetic relations of early pipoids to discoglossoids.
Źródło:
Acta Palaeontologica Polonica; 2006, 51, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New craniodental material of the typotherian notoungulates from the upper Oligocene of Mendoza, central-western Argentina and their taxonomical importance
Autorzy:
Hernandez Del Pino, S.
Seoane, F.D.
Cerdeno, E.
Powiązania:
https://bibliotekanauki.pl/articles/31341361.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
new material
craniodental material
typotherian notoungulate
notoungulate
Notoungulata
fossil mammal
Mammalia
Archaeohyracidae
Hegetotheriidae
Interatheriidae
Agua de la Piedra Formation
Deseadan
Mendoza province
Oligocene
Upper Oligocene
Mendoza
Argentina
taxonomy
Źródło:
Acta Palaeontologica Polonica; 2022, 67, 4; 983-997
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reconstruction of Oligocene and Neogene freshwater fish faunas - an actualistic study on cypriniform otoliths
Autorzy:
Schulz-Mirbach, T
Reichenbacher, B.
Powiązania:
https://bibliotekanauki.pl/articles/20987.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
utricular otolith
fish
Miocene
cypriniform otolith
Oligocene
morphology
freshwater fish
reconstruction
lapillus
paleontology
Opis:
Fossil utricular otoliths (= lapilli) from cypriniform fishes have long been recorded from European Oligocene and Neogene freshwater and oligohaline sediments. Until now, their determination was limited to the family level owing to the lack of morphological investigations on lapilli of Recent cypriniforms. The present study introduces a terminology for the lapillus morphology that is based on the lapilli of 134 specimens of 20 cyprinid and one balitorid species. It is demonstrated that the lapillus has valuable characters for taxonomic classification. As a result, fossil lapilli from Oligocene and Miocene continental deposits from the western Mediterranean, the Swiss and the South German Molasse Basin, the Mainz Basin, and additionally from Anatolia could be determined. Nine species were identified: aff. Abramis sp. vel aff. Alburnus sp., aff. Alburnoides sp., aff. Barbus sp., cf. Leuciscussp., Palaeoleuciscus sp., Palaeotinca moeddeni sp. nov., Palaeotinca sp. 1, aff. Phoxinus sp., and aff. Rutilus sp. vel aff. Scardinius sp. Our study includes the oldest record of a Phoxinus−related and a Palaeotinca species from Europe. Additionally, aff. Abramis sp. vel aff. Alburnus sp. and aff. Alburnoides have been identified as fossils for the first time. The determination of the fossil lapilli has been supported by means of pharyngeal teeth, with the exception of aff. Abramis sp. vel aff. Alburnus sp., whose lapilli were found together with pharyngeal teeth of Palaeocarassius sp. It is suggested that these so−called Palaeocarassius pharyngeal teeth do not belong to an ancestor of the Carassiuslineage, but to a forerunner of the Abramis or Alburnuslineage. Our results support the previously described turnover in the Paratethys freshwater fish fauna about 17–18 Ma ago, when Palaeotinca spp. became extinct and the first appearance of Palaeoleuciscussp. and Palaeocarassiussp. (= aff. Abramissp. vel aff. Alburnus sp.) occurred. The Oligocene and Miocene cypriniform fishes did not evolve any provincialism from southern France throughout the Molasse Basin to the Mainz Basin.
Źródło:
Acta Palaeontologica Polonica; 2006, 51, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New large-bodied mammals from the Late Oligocene site of Chilga, Ethiopia
Autorzy:
Sanders, W J
Kappelman, J.
Rasmussen, D.T.
Powiązania:
https://bibliotekanauki.pl/articles/21162.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Ethiopia
Gomphotheriidae
Arsinoitheriidae
mammal
fossil
large-bodied mammal
Oligocene
Deinotheriidae
Chilga
paleontology
Palaeomastodontidae
Opis:
Newly recovered fossil proboscideans and embrithopods from Chilga, Ethiopia are described and evaluated taxonomically. They are dated to ca. 28–27 Ma (late Oligocene), temporally intermediate between late Eocene–early Oligocene Afro−Arabian faunas dominated by archaic, endemic taxa, and replacement faunas of the early Miocene marked by a massive influx of Eurasian migrants. The paucity of similar−aged sites in Afro−Arabia makes Chilga critical for delineating the initiation and sequence of this faunal turnover. While most of the genera present at Chilga persist from older Afro−Arabian localities, at higher elevation and farther inland than elsewhere, there are no Eurasian mammals in the fauna. However, the archaic endemics from Chilga differ morphometrically from their older congeners, and include a new embrithopod, Arsinoitherium giganteum sp. nov., and novel species of elephantiform proboscideans, Phiomia major sp. nov., aff. Palaeomastodon sp. nov. A, and aff. Palaeomastodon sp. nov. B. New, primitive deinotheres and gomphotheres also occur at Chilga, extending the fossil records of these proboscideans considerably back in time. The Chilga deinothere, Chilgatherium harrisi sp. nov., differs sufficiently from Prodeinotherium and Deinotherium to be placed in its own subfamily, Chilgatheriinae subfam. nov. The Chilga gomphothere is smaller than Miocene elephantoids, and is referred to cf. Gomphotherium sp. nov. Together, this evidence suggests that indigenous Afro−Arabian taxa had greater ecological versatility than previously suspected and continued to enjoy successful evolutionary trajectories into the late Paleogene. Thus, as they spread into Afro−Arabia, new immigrants from Eurasia may have encountered vibrant local mammalian communities. The demise of many endemic inhabitants followed and remains poorly understood.
Źródło:
Acta Palaeontologica Polonica; 2004, 49, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Larval development in Oligocene palaeobatrachid frogs
Autorzy:
Rocek, Z
Powiązania:
https://bibliotekanauki.pl/articles/21425.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
anuran fauna
palaeobatrachid frog
Czech Republic
frog
Palaeobatrachidae
Anura
Oligocene
larval development
larva
paleontology
Opis:
A detailed account of the development of skeletal and some soft−tissue structures is based on 171 fossil tadpoles and metamorphosing froglets of Palaeobatrachus sp. from the Late Oligocene of the Czech Republic (locality Bechlejovice). Their exceptionally good preservation resulted from fossilization in diatomites. The fossil developmental series was compared with normal development of the contemporary anuran Xenopus laevis (Pipidae) represented by cleared and stained (alizarin/toluidin−blue) whole−mount specimens. The comparison revealed that in spite of differences in the sequence of ossification and its timing (e.g., ossification of the otic capsules and ribs was retarded in Xenopus whereas dermal ossification was retarded in Palaeobatrachus), in the number of free ribs, and in composition of the sacral region (the synsacrum in Palaeobatrachus involves two posterior presacrals, whereas there is a single sacral in Xenopus), both genera were similar in great number of anatomical features that appear during development. The most important difference is the shape of vertebral centrum (procoelous in Palaeobatrachus, opisthocoelous in all Pipidae) which is formed in comparatively early developmental stages. A view that could result from anatomical comparisons is that Palaeobatrachus could be derived from the Pipidae, but this is doubtful due to biostratigraphic and palaeogeographic discrepancies. The earliest palaeobatrachids were recorded from the Late Cretaceous of Europe but pipids could not invade northern continents after the Early Cretaceous when the Tethys Sea prevented interchanges of anuran faunas. Also, all palaeobatrachids retain primitive anatomical features (e.g., five pairs of ribs) that were more derived even in the earliest pipids from the Lower Cretaceous of Israel.
Źródło:
Acta Palaeontologica Polonica; 2003, 48, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Boine snake Bavarioboa from the Oligocene/Miocene of eastern Turkey with comments on connections between European and Asiatic snake faunas
Autorzy:
Szyndlar, Z.
Hosgor, I.
Powiązania:
https://bibliotekanauki.pl/articles/21233.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
boine snake
snake
Bavarioboa
Oligocene
Miocene
Turkey
fauna
European fauna
Asiatic fauna
fossil
remains
paleontology
Opis:
Fossil remains of the extinct boine snake Bavarioboa, thus far known exclusively from several localities of western and central Europe, are reported for the first time outside Europe. The new fossil record is from the Mendikdere Formation in easternmost Turkey, dated Late Oligocene to Early Miocene. The finding provides strong evidence of links connecting ophidian faunas of Europe and southwestern Asia in the past, and confirms the supposition that Anatolia may have had close terrestrial connections with Europe around the Oligocene/Miocene boundary.
Źródło:
Acta Palaeontologica Polonica; 2012, 57, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 22

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