Palaeontos (8 Ergebnisse)
Verlag: Mortsel: Palaeo Publishing and Library, 2002
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In den Warenkorb4to. Pp. [ii],99, many large photos on 34 plates, 16 figs., tables, refs. Paperbound, orig. stiff wrappers. Fine new copy.
Verlag: Mortsel Antwerp, 2004
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In den Warenkorb4to. Pp. 109, numerous photos on 20 plates, 5 figs., 1 tab., refs. Paperbound. Fine new copy.
Verlag: Mortsel
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In den Warenkorb4to. Pp. iv,73, numerous large phiotos and drawings on 63 pls., bibl., index. Orig. wrs.
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In den WarenkorbSoft cover. , 1 plate) 0.0.
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In den WarenkorbTaverne L. & Capasso L, 2014, Ostéologie et phylogénie des Coccodontidae, une famille remarquable de poissons Pycnodontiformes du Crétacé supérieur marin du Liban, avec la description de deux nouveaux genres. (43 textpages with 43 text-figures) Abstract: The Coccodontidae are an endemic and highly specialized pycnodontid fish fa…mily from the marine Cenomanian (Late Cretaceous) of Lebanon. Four genera are today ranged in this family, Coccodus, Hensodon, Trewavasia and Ichthyoceros. The present paper adds two new monospecific genera to the Coccodontidae, Paracoccodus gen. nov. and Corusichthys gen. nov. The osteology of all these fossil fishes is studied in details and the phylogeny within the family is established. Coccodus is the less evolved member of the family. It has a fusiform and naked body, very short dorsal and anal fins and less than 20 vertebral segments before the epichordal series. Its dermosupraoccipital develops a strong horn and a short nuchal process. Its cleithrum bears three long spines, one anterior and two posterior. However, its skull remains close to the usual pycnodontid cranial morphotype. Paracoccodus is only known by its head and the beginning of its vertebral axis. It has an occipital horn and a short nuchal process as in Coccodus but it differs from this last genus by some other cranial characters. Its skull is also fundamentally pycnodontid-shaped. Corusichthys, Hensodon and Trewavasia differ more markedly from the pycnodontid cranial scheme. They exhibit a vertically oriented snout, frontal horns and a gigantic nuchal process formed by the the dermosupraoccipital, the parietal and the supratemporal. They have lost the occipital horn. Corusichthys still possesses a fusiform body, less than 20 vertebral segments and short dorsal and anal fins. There is a spiny crest on the dermosupraoccipital and only one pair of scale-bars located in the pelvic region. Hensodon and Trewavasia are more specialized. They are deep-bodied. The frontal horns are horizontally oriented. A long crest runs through the dermopterotic. The premaxilla is partly hidden by the prefrontal. There are between 25 and 30 vertebral segments before the epichordal elements. The dorsal and anal fins are larger. The fin rays are segmented but not branched. One hypochordal is hypertrophied. A large spiny postcloacal scute is present. Hensodon is characterized by its atrophied jaws and the presence of a few scale-bars in the abdominal region. In Trewavasia, the frontal horns are flattened and sutured together, forming a bony visor before the orbit. The body is entirely covered by large spiny scutes. It is also shown that Ichthyoceros does not belong to the Coccodontidae but to the Gladiopycnodontidae, a family allied to the Coccodontidae and forming with them the super-family Coccodontoidea. Taverne L. & Capasso L., 2014, Ostéologie et relations phylogénétiques des Gebrayelichtyidae (Halecostomi, Pycnodontomorpha), une extraordinaire famille de poissons du Crétacé supérieur marin du Liban, avec la description d'un nouveau genre. (24 textpages with 23 text-figures) Abstract: The Gebrayelichthyidae are an extraordinary fossil fish family endemic from the marine Cenomanian deposits of Lebanon. They are much deeper than long because of their short body and the presence of a very elongated nuchal horn and of a gigantic cleithrum forming a long ventral keel. Until now, the family was monogeneric and contained only the genus Gebrayelichthys with two species, G. uyenoi and G. vexillarius. A second gebrayelichthyid genus, Maraldichthys verticalis gen. and sp. nov. is herein described. The osteology of the two genera is studied in details. Their skull exhibits the typical pycnodontiform morphology, with a long and massive mesethmoid including the lateral ethmoids, a dermosupraoccipital, a long toothless parasphenoid, a dermohyomandibula associated to the hyomandibula, a reduced opercle, no subopercle and interopercle, a hypertrophied preopercle articu.
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In den WarenkorbSTEIN G.: Die Gattung Tritia Risso, 1826 (Neogastropoda: Nassariidae) im Miozän des Nordseebeckens. Eine Revision der Nassariiden aus den miozänen Ablagerungen des Nordseebeckens ergab, dass für diesen Bereich 35 Arten der Gattung Tritia RISSO, 1826 akzeptiert werden können. Besondere Beachtung erfährt die Darstellung der Variat…ionsbreiten der einzelnen Arten sowie das Erkennen von Entwicklungstendenzen und -reihen. Bis auf Tritia rozieri (PEYROT, 1925), die erstmalig aus dem Nordseebecken gemeldet wird, wurden alle Arten der Gattung bereits in früheren Veröffentlichungen erwähnt und abgebildet, zum großen Teil aber unter nicht zutreffenden Namen. Drei zuvor als eigenständig gewertete Arten werden synonymisiert: Nassarius incisireticulatus GÜRS, 2002 ist synonym mit Tritia subtessellata (PEYROT, 1925), Buccinum holsaticum BEYRICH, 1854 ist synonym mit Tritia syltensis (BEYRICH, 1854) und Nassa duvergieri PEYROT, 1925 aus dem Burdigalium Südwest-Frankreichs ist synonym mit Tritia facki (KOENEN, 1872). Drei Namen werden aufgrund Homonymie ersetzt: Nassa tenuistriata sulcata KAUTSKY, 1925 non RISSO, 1826: Tritia latestriata (KAUTSKY, 1925); Hinia coronata MOSTAFAVI, 1978 non NOBRE, 1884: Tritia mostafavii nom. nov.; Nassarius karinae WIENRICH, 2001 non NOWELL-USTICKE, 1971: Tritia karinwienrichae nom. nov. Fünf Formen werden zu anderen Arten gestellt: Hinia turbinella turbinella sensu MOSTAFAVI, 1978 (partim) = Tritia occidentalis (PEYROT, 1925); Nassa badensis sensu VAN VOORTHUYSEN, 1944 = Tritia substraminea (GRATELOUP, 1834); Hinia catulli sensu A.W. JANSSEN, 1972 = Tritia cf. rejecta (BOETTGER, 1906); Nassarius sp. 2 sensu WIENRICH, 2001 = Tritia sororcula (PEYROT, 1925); Nassa prismatica sensu KAUTSKY, 1925 = Tritia spectabilis (NYST, 1845). Acht weitere Formen werden als neue Arten oder Unterarten beschrieben: Amyclina facki sensu MOTHS & PIEHL, 1988: Tritia mothsi sp. nov.; Amyclina banatica sensu ANDERSON, 1964: Tritia westfalica sp. nov.; Nassa cf. laevissima sensu VAN VOORTHUYSEN, 1944: Tritia kostejana krocki subsp. nov.; Nassa poelsense sensu KAUTSKY, 1925: Tritia girondica kautskyi subsp. nov.; Nassa serraticosta sensu SORGENFREI, 1958: Tritia sorgenfreii sp. nov.; Nassa serraticosta sensu VAN VOORTHUYSEN, 1944: Tritia hemmoorica sp. nov.; Nassa woodwardi sensu KAUTSKY, 1925: Tritia jyllandica sp. nov.; Nassarius sp. 1 sensu WIENRICH, 2001: Tritia albrechti sp. nov. Bullia subpolita laevis / B. semiplicata VAN VOORTHUYSEN, 1944 und Buccinum meyni BEYRICH, 1854 werden in die Gattung Dorsanum GRAY, 1847 gestellt. Der Name der rezenten Tritia pygmaea (LAMARCK, 1822) non SCHLOTHEIM, 1820 wird als Homonym erkannt und durch das jüngere Synonym Tritia varicosa (TURTON, 1825) ersetzt. STEIN G., 2019, Die von Sacco auf Mollusken des Nordseebeckens und des Bereiches der britischen Inseln begründeten Artgruppen-Namen. Es erfolgt eine Auflistung aller von SACCO in den zwischen 1891 und 1901 erschienenen Bänden seines Werkes I Molluschi dei terreni terziarii del Piemonte e della Liguria" für Mollusken des Nordseebeckens einschließlich des Mainzer Beckens sowie des Bereiches der britischen Inseln neu eingeführten Artgruppen-Namen. Hinweise zum stratigraphischen sowie zum geographischen Vorkommen des Typmaterials werden gegeben. 157 pp., 61 plates, num. figs, br. 4.
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In den WarenkorbReinecke, T. & Radwanski, A.: Fossil sharks and batoids from the Korytnica-clays, early Badenian (Langhian, Middle Miocene), Fore-Carpathian basin, central Poland. Based on new material of shark and batoid teeth collected from the early Badenian Korytnica Clays (Holy Cross Mountains, Central Poland) the fauna is updated and the…previous data and taxonomy of Schultz (1977, 1979) is revised. The small fauna consists of 15 shark and 7 batoid species, four of which, Alopias exigua (Probst, 1879), Galeorhinus cf. goncalvesi Antunes et al., 1999, Pachyscyllium dachiardii (Lawley, 1876), and Dasyatis strangulata (Probst, 1877) are new for Korytnica and - except P. dachiardii - also for the Badenian of the Central Paratethys. Reinecke, T., von der Hocht, F. & Dufraing, L.: Fossil basking shark of the genus Keasius (Lamniforme, Cetorhindiae) from the boreal North Sea Basin and Upper Rhine Graben: evolution of dental characteristics from the Oligocene to late Middle Miocene and description of two new species. Basking sharks of the extinct genus Keasius Welton, 2013 occurred widespread during the Oligocene and Early to Middle Miocene in marine environments of the North Sea Basin, Upper Rhine Graben, Paratethys and adjacent regions. These sharks were equipped with a gill raker apparatus for filter-feeding (elongate modified denticles attached to the gill arches), and a heterodont dentition suitable for grasping?/?tearing small-sized prey. We have studied a comprehensive collection of teeth and gill rakers from 45 locations (quarries, borings, temporary excavations) in Rupelian to Serravallian deposits. Two new species are described: Keasius septemtrionalis sp. nov. from the early?/?middle Chattian Sülstorf Beds, Mecklenburg, northeastern Germany, and Keasius rhenanus sp. nov. from the late Burdigalian Lower Mica Finesand Formation, Lower Saxony, northern Germany. This study allows to document and interprete for the first time variations due to heterodonty in the dental morphology of Keasius parvus (Leriche, 1908) by means of abundant teeth collected from the Rupelian Alzey Formation, Mainz Basin, western Germany, and the Rupelian Boom Clay Formation, northern Belgium. Artificial tooth sets characterized by dignathic and disjunct-monognathic heterodonty, based on the lamnoid tooth pattern", are proposed for the three Oligo-Miocene species of Keasius and compared with reconstructed dentitions of the Late Eocene Keasius taylori proposed by Welton (2013). Taverne, L., Maisey, J. G. & Capasso, L.: A third longirostrine gladiopycnodontid fish genus (Pycnodontiformes) from the marine Late Cretaceous of Lebanon. The osteology of Stenoprotome hamata Hay, 1903 from the marine Late Cretaceous of Lebanon is studied in details. Its cranial and pectoral characters, its elongated snout and the scute-like scales of this strange fossil fish indicate that it is a member of the Gladiopycnodontidae, a highly specialized family of the order Pycnodontiformes, and not referable to the Saurichthyidae as previously thought. S. hamata exhibits a very long sword-like rostrum that is formed by the prefrontals and the premaxillae, with the upper margin of the toothless premaxilla sutured to the lower margin of the prefrontal. S. hamata belongs to the most evolved genera of the Gladiopycnodontidae, those having lost the nuchal horn present in the primitive species of the lineage. Stenoprotome Hay, 1903 shares with Gladiopycnodus Taverne & Capasso, 2013 and Rostropycnodus Taverne & Capasso, 2013 the apomorphic condition of having the rostrum extremely elongated. Stenoprotome and Gladiopycnodus share two other apomorphies, their dermosupraoccipital has a posterior margin with a strong spine and they possess large and deep dorsal ridge scutes. Stenoprotome differs from all the other gladiopycnodontid fishes in the presence of a long acuminate horn on each dermopterotic and of a large posterior horny process on the cleithrum. 104 pp., 30 figs, 4 tabs, 8 pls, br. 4.
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In den WarenkorbHÖLTKE O., UNGER E., POLLERSPÖCK J. & RASSER M. W., 2020. The elasmobranch fauna from the Upper Marine Molasse (Lower Miocene, Burdigalian) of Ursendorf (SW-Germany). 53 textpages, 7 textfigures, 2 tables, 9 plates. 85 textpages, 8 textfigures, 61 tables Abstract: The Early Ottnangian (Early Miocene, Burdigalian) marine deposit…of Ursendorf (Baden-Württemberg, South Germany) belongs to the Upper Marine Molasse (UMM) unit in the Northern Alpine Foreland Basin. The outcropping sediments mainly consist of coarse-grained, poorly sorted sands, partly showing large-scale cross-bedding. In these sediments, 24 genera of sharks and rays could be identified (Aetobatus, Araloselachus, Carcharias, Carcharhinus, Carcharodon, Carcharoides, Centrophorus, Dasyatis, Echinorhinus, Galeocerdo, Hemipristis, Isurus, Otodus (Megaselachus), Mitsukurina, Myliobatis, Notorynchus, Odontaspis, Pachyscyllium, Physogaleus, Pseudocarcharias, Raja, Rhinoptera, Squatina, Taeniurops), five of which are extinct (Araloselachus, Carcharoides, Otodus (Megaselachus), Pachyscyllium, Physogaleus). Nearly all the taxa fed on invertebrates (squid, shrimps, etc.) and/or bony fishes. One taxon (Galeocerdo) is a more 'generalistic' feeder on invertebrates and fishes as well as on seabirds, snakes, turtles and marine mammals. Otodus (Megaselachus) and possibly also Carcharodon mainly preyed on marine mammals as well as bony fishes. The invertebrate remnants found in the same sediments (Mollusca, Bryozoa, etc.) as well as the bony fish teeth (Sparidae) indicate a typical soft-bottom community in temperate shallow water below the storm wave base. The rich invertebrate fauna and the bony fishes were a rich food supply for the sharks and rays. In order to compare Ursendorf with 16 other UMM localities in South Germany and Switzerland, a cluster analysis was conducted. In all of the three calculated indices, the Ursendorf shark fauna is most similar to that of Ballendorf, Baltringen, Ulm-Ermingen and Walbertsweiler (all in Baden-Württemberg), Benken (Switzerland) and Neuburg am Inn-Höch (Bavaria). This similarity can be explained by palaeogeographic and palaeoenvironmental features. REINECKE T., POLLERSPÖCK J., MOTOMURA H., BRACHER H., DUFRAING L., GÜTHNER T. & VON DER HOCHT F., 2020. Sawsharks (Pristiophoriformes, Pristiophoridae) in the Oligocene and Neogene of Europe and their relationships with extant species based on teeth and rostral denticles. 107 textpages, 44 textfigures, 5 tables. Abstract: In the fossil record, sawsharks (family Pristiophoridae BLEEKER, 1859) include the genera Pristiophorus MÜLLER & HENLE, 1837, Pliotrema REGAN, 1906 and Ikamauius KEYES, 1979, which are mainly or exclusively represented by isolated lateral denticles of their saw-like rostra or less commonly (Pristiophorus) also by tiny oral teeth. We studied a large collection of fossil pristiophorid rostral denticles and oral teeth obtained from numerous localities exposing marine deposits of Rupelian to Tortonian age (Lower Oligocene to Upper Miocene) in the North Alpine Foreland Basin, North Sea Basin, Northeastern Atlantic and Central/northern Mediterranean Sea. In order to interprete the perceptible differences in tooth and denticle morphology of the fossil material, we conducted a parallel study on oral dentitions and rostral denticles in extant taxa of the Pristiophoridae. Representative samples of upper/lower oral teeth and of lateral/ventral rostral denticles are illustrated to document the heterodonty of teeth and characteristic features of denticles. In all species a gradient monognathic heterodonty is conspicuous. A dignathic heterodonty, typical of Pristiophorus spp., is mainly constituted by teeth in anteriormost files of the lower jaw that are larger and more strongly cambered labially than corresponding teeth in the upper dentition. Four new species are described: Pristiophorus borealis sp nov. from the Sülstorf Formation, early to middle Chattian, Mecklenburg, northeastern Germany.
