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| Registros recuperados: 363 | |
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| Sharikadze, M.Z.; Kakabadze, M.V.; Hoedemaeker, P.J.. |
| Seventy nine species and subspecies of the following ammonite genera and subgenera of the families Douvilleiceratidae Parona & Bonarelli, Acanthohoplitidae Stoyanow, and Parahoplitidae Spath are described from the study area. Fourteen species are new; Cheloniceras rectangulatum, Ch. guanense, Epicheloniceras wiedmanni, E. douvillei, E. bradleyiformis, Vectisites (Zambranoites) nodosus, V. (Z.) etayosernai, V. (Z.) obscurus, V. (Z.) grandis, Gargasiceras subpulcher, Colombiceras formosum, Protacanthoplites originalis, Riedelites latecostatus, R. microtuberculatus. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Ammonites; Systematics; Aptian; Albian; Colombia; 38.22; 42.73. |
| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/214460 |
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| Harper, E.M.; Skelton, P.W.. |
| The well documented dramatic increase in predation pressure which started during the early Mesozoic, termed the Mesozoic Marine Revolution (MMR), had an important impact on the evolution of prey organisms (Vermeij, 1983). Epifaunal bivalves in particular are at considerable risk to predation. In this paper we consider the types of predation to which epifaunal bivalves are prone and outline the evolutionary history of the different modes of predation. We explore methods by which bivalves are known to evade these activities and chart the appearance of these defences in the fossil record. These sections involve both review of the massive existing literature on molluscivory and the presentation of new experimental data, in particular on the value of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
| Ano: 1992 |
URL: http://www.repository.naturalis.nl/record/317335 |
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| Ballmann, P.. |
| A new collection of over three hundred bird bones from the Upper Miocene of Gargano is described. Eight different orders are represented: Anseriformes (1 species), Falconiformes (2), Galliformes (1), Strigiformes (6), Columbiformes (1), Apodiformes (1), Piciformes (1) and Passeriformes. Two of the three new species are assigned to extant genera: Columba omnisanctorum and Apus wetmorei, while a new strigid owl of the size of Nyctea scandiaca is believed to represent a new endemic genus. It is provisionally called Strix ? perpasta. The increase in size of the Accipitridae and the Strigiformes allows to distinguish five different biozones and thus to arrange a number of localities into a stratigraphical sequence. |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
| Ano: 1976 |
URL: http://www.repository.naturalis.nl/record/317493 |
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| Aguilar, J.P.; Michaux, J.; Delannoy, J.J.; Guendon, J.L.. |
| In this paper 11 species of rodents are described, that have been found in the fossiliferous karst fissure of Alozaina (Malaga, Spain). Three species of Stephanomys (Murinae) are present in this fauna: S. thaleri, S. minor, and the new species S. prietaensis. The latter exhibits a lesser degree of evolution than Stephanomys balcellsi from Valdeganga 7 and Islas Medas. The association of rodents from Alozaina is a new one for the Upper Pliocene in Spain. It indicates that the locality of Alozaina is younger than Moreda 1B and Rambla Seca Ab, and older than Valdeganga 7. |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
| Ano: 1993 |
URL: http://www.repository.naturalis.nl/record/317548 |
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| Fedorowski, J.. |
| Rugose corals reinvestigated herein constitute the main part of the collection described by de Groot (1963). The taxonomy proposed herein differs in several instances from that accepted originally by de Groot. Some changes, such as Petalaxis for Lithostrotionella and Calophyllum instead of Polycoelia, were already introduced in de Groot’s unpublished catalogue. Others were introduced in order to match the recent advances in rugose coral systematics. Most systematic changes were based on new microstructural, diagenetic and hystero-ontogenetic studies. These are described in detail for individual species and briefly discussed in the concluding considerations. Trabecular microstructure of septa and its diagenetic alteration was documented for most species.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Rugosa; Dividocorallia; Bashkirian-Moscovian; Spain; 38.22; 42.79. |
| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/214517 |
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| Hooijer, D.A.. |
| The Laetolil Beds in Tanzania, 20-30 miles south of Olduvai Gorge, have been extensively sampled by parties under the leadership of Mrs. Dr. Mary D. Leakey, who very kindly sent me Hipparion material collected in 1974, 1975, and 1976. In a restudy of proboscidean material from these beds described by Dietrich (1942), Maglio (1969) arrived at the conclusion that the Laetolil fauna represents two distinct horizons, one seemingly correlating best with Kanapoi, Yellow Sands (= Mursi Formation), Chemeron, and Kanam, and younger deposits correlating best with the later Omo Beds, possibly antedating Olduvai Bed I but only by a short time interval. This has been confirmed by radiometric dating: the Laetolil Beds with the older fauna are bracketed in time between... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22; 42.84. |
| Ano: 1979 |
URL: http://www.repository.naturalis.nl/record/319423 |
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| Fraaije, R.H.B.; Vega, F.J.; Bakel, B.W.M. van; Garibay-Romero, L.M.. |
| Two new brachyuran species are described for the Upper Cretaceous Mexcala Formation, Guerrero State, Mexico. Longusorbis quadratus new species (Coniacian, Temalac region) is the oldest and southernmost record for the genus. Xanthosia zoquiapensis new species (Campanian, Zoquiapa region) is the first record for the genus in Mexico. In addition, the age for Costacopluma bishopi Vega and Feldmann is discussed (Coniacian, Temalac region) and represents the oldest and southernmost record for Cretaceous representatives of this genus in North America. All specimens are considerably smaller compared to other species of the same genera and are interpreted as the first example of brachyuran dwarfism in the geological record. These species add new insight into... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Dwarfism; Decapoda; Cretaceous; New species; Mexico; 38.22; 42.74. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/214533 |
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| Janssen, A.W.. |
| The author gives an enumeration of the molluscan species of the 'Twistringer Schichten" (Miocene, Northern Germany). Many of the species listed here are new to this particular facies of the Miocene of the North Sea Basin. The material studied was collected in the claypits of the brickworks at Twistringen and Woltrup. A short stratigraphical review precedes the list of species. In the systematical part nomenclatural notes and descriptions of seventeen new species and subspecies are brought together. |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
| Ano: 1972 |
URL: http://www.repository.naturalis.nl/record/317480 |
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| Busulini, A.; Beschin, C.; Tessier, G.. |
| A reassessment of extinct species, fourteen in all, found in Europe and attributed to Calappilia has been carried out. For each species a short diagnosis is provided, and where necessary, its systematic position is reconsidered. Calappilia dacica lyrata is here elevated to species rank, while C. mainii is reassigned to Stenodromia A. Milne Edwards in Bouillé, 1873 and C. sexdentata is considered to be a nomen nudum. Photographs are provided of all type specimens available to us; most of these had so far been known only from (partially inaccurate) line drawings. For the first time, well-preserved chelipeds are described for the genus, having been found in articulation with a carapace of C. dacica. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Brachyura; Calappidae; Paleogene; Neogene; Reassessment; 42.74; 38.22. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/523850 |
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| Kelly, S.R.A.; Whitham, A.G.. |
| Two deshayesitid ammonite assemblages are described from the Lower Cretaceous succession of the north coast of Hold with Hope, North-East Greenland, and their biostratigraphical significance is assessed. In the earlier assemblage Prodeshayesites cf. bodei and P. laeviusculus occur. The second assemblage contains Deshayesites boegvadi. The presence of P. cf. bodei suggests that the northwest European bodei Subzone of the fissicostatus Zone is represented in North-East Greenland. The occurrence of D. boegvadi, previously recorded only from Kuhn q, probably indicates the later part of the fissicostatus Zone, or the forbesi or deshayesi zones. Other occurrences of Greenland deshayesitid ammonites are discussed briefly. The new finds from Hold with Hope are... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Ammonites; Deshayesitids; Aptian; Greenland; 38.22; 42.73. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/216197 |
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| Wesselingh, F.P.. |
| Two extant hydrobiid species from the lower Tapajos river of Brazil are redescribed. Potamopyrgus amazonicus Haas, 1949, is assigned to the genus Dyris Conrad, 1871. At least eleven species from Miocene deposits of Western Amazonia are assigned to Dyris, a genus that was previously assumed to be extinct. The apertural features of Sioliella effusa Haas, 1949, are considered indicative of a close relationship to Miocene Amazonian taxa formaly assigned to Eubora Kadolsky, 1980. Sioliella ovata spec. nov., a Miocene species resembling S. effusa is described. The two Tapajos species can be regarded as relicts of a speciose, endemic, Miocene Western Amazonian molluscan fauna. |
| Tipo: Article / Letter to the editor |
Palavras-chave: South America; Amazonia; Miocene; Recent; Hydrobiidae; Dyris; Sioliella; New species; 42.73; 38.22. |
| Ano: 2000 |
URL: http://www.repository.naturalis.nl/record/235203 |
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| Freudenthal, M.. |
| A new genus of Muridae, Microtia, is described and three species M. magna, M. parva, and M. maiuscula are ascribed to it. The size and morphology of Microtia molars show a very wide variation which is interpreted as an evolutionary trend, and used to establish an age sequence for a large number of fissure fillings, that show no stratigraphic correlation in the field. This sequence serves as a background for the study of the birds from Gargano by Ballmann. |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
| Ano: 1976 |
URL: http://www.repository.naturalis.nl/record/317545 |
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| Rzebik-Kowalska, B.. |
| Introduction The oldest descriptions of Romanian fossil insectivores date from the 1930s. At that time, I. Simionescu described two Early Pliocene localities, Măluşteni (in 1930) and Bereşti (in 1932), both containing a rich mammal fauna. Among the insectivores, Simionescu identified such genera as Erinaceus, Talpa, Myogale and Sorex. After the Second World War the palaeontologists C. Rădulescu, P.-M. Samson, E. Terzea, M.C. Feru, T. Jurcsák and E. Ştiucãpublished papers on the insectivores. Rădulescu and Samson described and commented upon numerous faunal complexes and species from Romania, spanning the time scale from the Middle Miocene to the end of the Pleistocene (Rădulescu & Samson 1984, 1985, 1987, 1989, 1995a, b, 2001; Rădulescu et al., 1993,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/317330 |
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| Hooijer, D.A.; Maglio, V.J.. |
| The faunas of Lothagam, Kanapoi and Ekora on the west side of Lake Rudolf in Kenya include well-preserved Hipparion material. The most interesting species is represented by a skull from Lothagam that is devoid of a preorbital fossa : Hipparion turkanense Hooijer & Maglio. The upper cheek teeth have small fossette plications and rather wrinkled anteroposterior fossette borders; the lower cheek teeth also show this wrinkled enamel condition, notably on the buccal wall, and sport no ectostylids. The closest resemblances are with certain Chinese "Pontian" forms described by Sefve. An equally large Hipparion with a preorbital fossa occurs at Kanapoi and Ekora. The upper cheek teeth are richly plicated fore and aft, and the anteroposterior fossette borders... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22; 42.84. |
| Ano: 1974 |
URL: http://www.repository.naturalis.nl/record/317636 |
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| Reumer, J.W.F.; Hoek Ostende, L.W. van den. |
| The number of known sciurid and petauristid fossils from The Netherlands is nearly doubled with the description of material from the Zuurland boreholes, the Maasvlakte, and the Tegelen claypit. The material from Tegelen is assigned to a new species of flying squirrel, Hylopetes debruijni nov. sp. One molar from the late Early Pleistocene of the Zuurland borehole is assigned to Sciurus cf. S. vulgaris. The remaining finds from the Tiglian of the Zuurland boreholes, as well as the single molar from the Maasvlakte, are all assigned to Spermophilus primigenius; this name is preferred over the suggestive use of names of recent ground squirrels for fossil material. The presence, during roughly the same stratigraphic interval, of a flying squirrel in Tegelen and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: New taxon; Tiglian; Pleistocene; Hylopetes; Sciurus; Spermophilus; The Netherlands; 38.22; 42.84. |
| Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/328009 |
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| Registros recuperados: 363 | |
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