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1.
Here we report on a new fossil locality, ?erefköy-2, from the Yata?an Basin of southwestern Turkey that preserves a well-sampled, abundant, and diverse mammal fauna. Indeed, after three field seasons, more than 1200 catalogued specimens representing 26 mammal species belonging to 14 genera make the ?erefköy-2 mammalian assemblage one of the richest Late Miocene fauna from Anatolia. Five hipparionines, six bovids, including the rare and enigmatic Urmiatherium rugosifrons and the presence of Pliohyrax graecus, strongly support affinities with Late Miocene faunas from Samos Island, Greece. Through a consideration of the identified material and the subsequent comparison with material from well-known Balkan and Anatolian faunas, a Middle Turolian (MN12) age for ?erefköy-2 is indicated.  相似文献   

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Eleven proximal and ten intermediate partial or complete hominoid phalanges have been recovered from the middle Miocene site of Pa?alar in Turkey. Based on species representation at Pa?alar, it is likely that most or all of the phalanges belong to Griphopithecus alpani rather than Kenyapithecus kizili, but both species may be represented. All of the complete or nearly complete phalanges appear to be manual, so comparisons to extant and other fossil primate species were limited to manual phalanges. Comparisons were made to extant hominoid and cercopithecoid primate genera expressing a variety of positional repertoires and varying degrees of arboreality and terrestriality. The comparisons consisted of a series of bivariate indices derived from previous publications on Miocene catarrhine phalangeal morphology. The proximal phalanges have dorsally expanded proximal articular surfaces, which is characteristic of cercopithecoids and most other Miocene hominoids, and indicates that the predominant positional behaviors involved pronograde quadrupedalism. Among the extant primates, many of the proximal and intermediate phalangeal indices clearly distinguish more habitually terrestrial taxa from those that are predominantly arboreal, and especially from taxa that commonly engage in suspensory activities. For nearly every index, the values of the Pa?alar phalanges occupy an intermediate position-most similar to values for Pan and, to a lesser extent, Macaca-indicating a generalized morphology and probably the use of both arboreal and terrestrial substrates. At least some terrestrial activity is also compatible with reconstructions of the Pa?alar habitat. Most proximal and intermediate phalanges of other middle and late Miocene hominoids have similar index values to those of the Pa?alar specimens, revealing broadly similar manual phalangeal morphology among many Miocene hominoids.  相似文献   

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This paper describes the first fossil porcupine remains from Iran. Four upper cheek teeth and two fragmentary lower incisors present sufficient characters for identification as Hystrix aryanensis, a species previously known from the late Miocene locality of Molayan (Afghanistan) estimated at ca. 7–8 Ma. The dental features of porcupines are discussed to show their systematic value and highlight evolutionary trends in late Miocene and Pliocene porcupines. This study also discusses the dispersal history of fossil porcupines in relation to paleobiogeographic provinces and environmental changes during late Miocene to late Pliocene time.  相似文献   

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Ardiç-Mordo?an is a new fossil Mammal locality in the Karaburun Peninsula of Western Turkey. Among its fauna, which is described here, the carnivores are especially interesting, with the most complete specimens ever found ofPercrocuta miocenica and of a primitive species of hyaenid, of which a new subspecies is described,Protictitherium intermedium paralium. This fauna is strongly reminiscent of those of sever-al other Middle Miocene localities in this area, Çandir, Pa?alar and Inönü in Turkey, and Prebreza in Serbia, and they must all belong to the same mammalian zone. Their ungulates attest an open environment which must have been widespread in the Turko-Balkanic area in Serravallian times.  相似文献   

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A detailed assessment of postcranial fossils collected at Balouk Keui (Thrace, Greece) in the mid-19th Century by the naturalist Auguste Viquesnel enabled us to identify the material as pertaining to Palaeotherium sp., cf. P. magnum, which constitutes the easternmost occurrence of the genus during the Eocene. We have constrained the geographic and stratigraphic provenance of the fossil by reassessing information about Viquesnel's itinerary and observations. Although the exact age of the fossil remains uncertain, the occurrence of a palaeothere in the Thrace Basin during the Eocene indicates a wider geographic distribution for the genus, which had previously been restricted to western and central Europe. The palaeothere of Balouk Keui confirms that the palaeogeographic range of this group included the Balkans during the middle–late Eocene. This discovery also shows that at least intermittent land connections between western Europe, Southeast Asia, and perhaps Central Iran facilitated mammalian dispersal during the middle–late Eocene, before the famous Grande Coupure.  相似文献   

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A new species of fossil hominoid is described from the middle Miocene deposits at Pa?alar, Turkey. It is the less common of the two Pa?alar species discussed by Martin and Andrews (1993), making up approximately 10% of the individuals in the Pa?alar hominoid sample according to analyses of the minimum number of individuals. To the diagnostic features of I(1) described by Alpagut et al. (1990) and Martin and Andrews (1993) can now be added further diagnostic features of all the anterior teeth, as well as both upper premolars and P(3). These include discrete, nonmetric features and metric differences at all the noted tooth positions. Attempts to distinguish the upper and lower molars of the two species have so far been unsuccessful, with the possible exception of M(3). The morphology of the new species is similar in most respects to that of Kenyapithecus wickeri from Fort Ternan, especially concerning maxillary morphology. They share robust and moderately deep maxillary alveolar processes, a restricted maxillary sinus with an elevated and uncomplicated floor, lacking the compartmentalization evident to varying degrees in many other taxa, and a zygomatic process that originates and turns laterally fairly high above the alveolar margin. There are also a number of distinctive similarities in the dentition, particularly for I(1), C(1), P(4) and P(3). The I(1) morphology in particular, with greatly hypertrophied lingual marginal ridges bounding a uniformly thickened basal crown area, is distinctive among Miocene hominoids. All of these similarities serve to reinforce the differences noted by others between the derived morphology of K. wickeri and the more primitive morphology of Equatorius africanus from Maboko and Kipsaramon. The new species differs from K. wickeri in morphological details of most of the anterior and premolar teeth that are known for both species, despite the general morphological similarity, and in the size of I(1) versus I(2). One striking feature of the new species is a relatively large incisive fossa, although it cannot be determined if this is associated with an open palatine fenestra, as in many early Miocene hominoids, or a minimally overlapping palate and nasoalveolar clivus, as in some middle and late Miocene hominoids.  相似文献   

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《Comptes Rendus Palevol》2002,1(3):161-166
A fossil angiosperm wood is described for the first time from the famous Early Miocene locality of Bı́lina. It represents a fossil elm wood, attributed to Ulmoxylon marchesonii Biondi. The fossil wood can be compared to extant North American soft elms, also to Ulmus macrocarpa Hance and U. parvifolia Jacq. from China or to the European common elm U. carpinifolia Gled. The wood together with fossil leaves/fruits of Ulmus pyramidalis Goeppert forms a single natural fossil species that lived in the Bı́lina area during the Early Miocene. The influence of two types of preservation, permineralised and xylitic, on the same wood species is also discussed. To cite this article: J. Sakala, C. R. Palevol 1 (2002) 161–166.  相似文献   

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For the first time, fossils of unquestionable eurypterid origin are documented from the renowned Lower Devonian Hunsrück Slate Lagerstätte in southwestern Germany. The gnathobase of a coxal plate and a body segment can be attributed to pterygotid eurypterids, probably to Jaekelopterus rhenaniae. These body parts from the Hunsrück Slate once more confirm the extraordinary large size that could be attained by this Rhenish eurypterid. Based on the usual occurrence in marine–terrestrial transitional facies elsewhere in the Rhenish Devonian, rareness in the Hunsrück Slate, and poor preservation, the Hunsrück Slate pterygotid remains are most probably allochthonous, and eurypterids are considered nongenuine elements of the ‘Hunsrück Slate biota.  相似文献   

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A new genus and species of Discocephalini, Acanthocephalonotum martinsnetoi gen. n. et sp. n. is described from Río Pichileufú, middle Eocene of Patagonia, Argentina at palaeolatitude ~ 46°S. The new species is the first fossil representative of the Discocephalinae. This taxon is extant in equatorial to subtropical America, and some species reach warm temperate latitudes (Buenos Aires province). The new genus is distinguished from the other genera of Discocephalini by the combination of these characters: interocular width greater than head length; head massive and quadrangular with the anterior margin almost straight; juga touching each other; labrum thick and curved; triangular ante-ocular process extending beyond the eye; broad spine-like antero-lateral process of the pronotum; pronotum explanate and bean shaped; scutellum triangular with a circular tongue reaching the anterior side of abdominal segment 7; and wings well developed with membrane just surpassing end of abdomen.  相似文献   

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The aim of the present contribution is to describe a partial fossil skull belonging to the catfish genus Sorubim. The specimen originates from the Late Miocene Ituzaingó Formation, at Paraná locality, Entre Ríos Province, Argentina. The material described here (MACN Pv-14224) was determined just to genus because the living species of Sorubim are morphologically similar. Presence of Sorubim is in concordance with the hypothesis indicating that most extant pimelodid genera were already present by the Late Miocene. Present finding constitutes the first fossil record for the genus.  相似文献   

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《Palaeoworld》2020,29(3):629-635
New bovid material from the Upper Miocene site of Çorakyerler (Çankırı basin, Anatolia, Turkey) is described and compared here. The described taxon is identified as a representative of the stem caprine genus Qurliqnoria, previously known from the peri-Tibetan area exclusively. The stronger horn-core divergence, weaker anterior keel, smoother horn-core surface, stronger lateral horn-core curvature, stronger and thicker interfrontal suture, less flexed and less pneumatized frontals, and smaller supraorbital foramina differentiate the Çorakyerler Qurliqnoria from the type and only known species of the genus, Q. cheni from China, and demand the erection of a new species, Qurliqnoria chorakensis n. sp. A review of other late Miocene bovid records allows the recognition of Qurliqnoria in Sinap Tepe (Turkey) and Platania (Greece), suggesting a westward propagation of the genus during the Vallesian.  相似文献   

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The Ni?angahtepe Formation (Teke Dere unit) in the Lycian Nappes, and reworked pebbles and blocks from the Late Triassic Gevne Formation in the Alada? unit (both in Southern Turkey), present a well-developed Kubergandian microfauna and microflora found for the first time in this area. The following cyanobacterial and algal taxa are newly established: Clinortonella nov. gen., Ramovsia lyciana nov. sp., and Kantia? guevenci nov. sp.; some Cancellina and Armenina are revised. These Kubergandian faunas and floras present strong palaeobiogeographical affinities with the Eurasian southern margin (northern Palaeotethyan border). The Teke Dere unit represents an accretionary prism/fore-arc sequence containing different parts of the Palaeotethyan succession. The Late Triassic Gevne Formation marks the Eo-Cimmerian unconformity related to the closure of the Palaeotethys between the Taurus and Anatolian terranes.  相似文献   

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New bird fossils from the late Eocene/early Oligocene Makah Formation and the Oligocene Pysht Formation on the Olympic Peninsula (Washington State, USA) are described. A partial skeleton from the Pysht Formation includes the first reported tarsometatarsus of Tonsala hildegardae Olson, 1980, a wing-propelled diving bird of the taxon Plotopteridae. It shows that Tonsala had a tarsometatarsus that was morphologically intermediate between that of the late Eocene Phocavis and more derived plotopterids. We introduce the new taxon Tonsalinae nov. subfam. for a clade including all named plotopterids except Phocavis, Plotopterum, and the recently described Stemec. We furthermore describe a partial plotopterid pelvis and a sternum from the Makah Formation. The sternum shows a close resemblance to that of extant Phalacrocoracoidea (cormorants and darters) and may be the earliest North American record of this taxon.  相似文献   

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