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| Registros recuperados: 363 | |
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| Kato, H.; Nakashima, R.; Yanagisawa, Y.. |
| Two new species of the oregoniid crab genus Hyas are described from the Lower Pliocene of northern Japan, H. chippubetsuensis sp. nov. from the Chippubetsu Formation exposed along the Tadoshi River (Fukagawa City, central Hokkaido) and H. tentokujiensis sp. nov. from the Tentokuji Formation at Daisen City (central part of Akita Prefecture). These two new taxa both have a densely tuberculate carapace and strongly vaulted dorsal regions. Another extinct congener in the northeast Pacific region, Hyas tsuchidai Imaizumi, 1952, from the Upper Miocene Wakkanai Formation of northern Hokkaido, Japan. The earliest fossil record of the genus Hyas is from the ‘lower Badenian’ (Langhian, early Middle Miocene) of Austria. If Hyas originated in the Paratethys prior to... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Spider crabs; New taxa; Pacific region; Palaeobiogeography; 42.74; 38.22. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/523857 |
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| Wesselingh, F.P.; Ranzi, A.; Räsänen, M.E.. |
| Thirteen species of fossil molluscs are reported from the Solimões Formation of western Brazilian Amazonia. Based on mammalian chronology of the Solimões Formation and radiometric ages reported from coeval deposits in adjacent Peru, the age of the fauna is established as Late Miocene. The fauna includes five prosobranch gastropod species, seven pearly freshwater mussel species and one sphaeriid bivalve species. The supposed presence of Pachydon (Corbulidae: Bivalvia) in these deposits is rejected; Pachydon acreanum, whose status has long been uncertain, is transferred to the unionoid genus Callonaia. The Solimões mollusc fauna is entirely composed of obligate freshwater taxa, resembling species-poor modern Amazonian fluvial faunas. The presence of the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Mollusca; Western Amazonia; Miocene; Solimões Formation.; 38.22; 42.73. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/209736 |
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| Owen, H.G.. |
| Although the so-called ‘standard’ ammonite zonation of the Albian contains index species which occur in the Tethyan province, the scheme largely reflects the faunal succession in the European faunal province with its endemic sonneratiinid and hoplitinid faunal elements. Workers in the Tethyan province, stretching from South America in the west to Australia in the east, including southern Africa, Madagascar and India, face problems in the correlation of their successions with this so-called ‘standard’ scheme. There are other problems in that the succession of hoplitinid ammonites used in the biostratigraphy of European Albian sediments allows a far more detailed zonation to be made than in the case of some of the longer time-ranging Tethyan forms. This... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Early Cretaceous; Albian Stage; Ammonite zonation; European and Tethyan faunal provinces; 38.22; 42.73. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/216199 |
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| Freudenthal, M.. |
| Hattomys, a new genus of Cricetidae, is described and three new species H. beetsi, H. nazarii and H. gargantua are attributed to it. Hattomys are very large cricetids, and the evolution of the genus is characterized by a considerable increase in size, and an increasing predominance of ridges over cusps. The supposedly oldest Gargano localities yielded, apart from the lineage H. beetsi-nazarii-gargantua, some scarce material of three other hamster species: a Megacricetodon, a Cricetulodon and a Cricetus. Comparison with the Spanish sequences of rodent faunas shows that the Gargano faunas probably are of late Turolian age, equivalent of the Messinian. |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
| Ano: 1985 |
URL: http://www.repository.naturalis.nl/record/317508 |
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| Rhebergen, F.. |
| The new anthaspidellid taxon Brevaspidella dispersa is erected for specimens recovered from the Late Ordovician sponge assemblages of the island of Gotland, Sweden and the Dutch-German border region. In the latter area, they are collected from Early Pleistocene fluvial deposits of the Baltic River System, whereas those from Gotland are part of Late Pleistocene glacial or fluvio-glacial deposits. The provenance of both assemblages is uncertain, but they probably originated from an Ordovician basin in the northern Baltic Sea or the Bothnian Gulf, west of Finland. As yet, Brevaspidella dispersa gen. et sp. nov. is restricted to the Gotland-German-Dutch sponge association and has not been found in the assemblage of nearly-coeval ‘lavender-blue cherts’ and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Anthaspidellidae; Erratics; Brevaspidella; 38.22; 42.72. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/469450 |
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| Regteren Altena, C.O. van. |
| CONTENTS Ι. Scope of this work................ 3 2. Acknowledgements................ 4 3. History of the study of Suriname marine Mollusca....... 6 a. Recent.................. 6 b. Holocene................. 15 4. The Suriname coastal waters as an environment for Mollusca .... 23 a. General remarks............... 23 b. The intertidal zone and shallow coastal waters....... 24 c. The estuary and lower course of the Suriname River..... 26 d. The coastal waters within the 30 fathom line....... 29 5. The occurrence of Holocene marine Mollusca in Suriname..... 31 6. The economic importance of Suriname marine Mollusca...... 34 7. Origin of the material studied............. 36 a. Collections and collectors............. 36 b. Localities................. 39 8. The... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22; 42.73. |
| Ano: 1969 |
URL: http://www.repository.naturalis.nl/record/317746 |
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| Janssen, A.W.. |
| All Tertiary euthecosomatous gastropods from the Australian continent known to the author are described. The species introduced by Ralph Tate (1887) are revised. Altogether 18 species are discussed. A new genus, Spoelia, and five new species, viz. Limacina curryi, L. lunata, L. tatei, Spoelia torquayensis and Vaginella victoriae, are introduced. Potential tools in the Australian pteropod fauna for a future biostratigraphical zonation and for long distance correlations are indicated. In an annex Vaginella sannicola sp. nov. is introduced for specimens from the Miocene of Gargano, Italy, which were incorrectly identified as V. eligmostoma Tate by d'Alessandro & Robba, 1980. |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
| Ano: 1989 |
URL: http://www.repository.naturalis.nl/record/317441 |
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| Årpád, Dàvid. |
| Trace fossils, found on shells of gastropods, bivalves and scaphopods from Molluscan Clay exposures (Oligocene, Egerian) at Eger (Wind brickyard) and Novaj (Nyárjas Hill) (NE Hungary), were studied. The relative abundance of different types of borings, traces of bioerosion and palaeopathological phenomena indicate micro-environmental differences between the two localities. |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
| Ano: 1992 |
URL: http://www.repository.naturalis.nl/record/317337 |
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| Loose, H.. |
| Palaeontology is too often odontology of necessity, the dentition being the most resistant part of the skeleton. When, as in the genus Dicerorhinus, the dentition can be a source of mistaken identity, we must look for species deter- mination based on complete skulls as referents. This leads to problems of ecology when seen in combination with the fluctuating Pleistocene vegetation belts. Some recent species are included to show similarities and dissimilarities within the group. |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
| Ano: 1975 |
URL: http://www.repository.naturalis.nl/record/317547 |
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| Registros recuperados: 363 | |
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