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Registros recuperados: 259 | |
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Garassino, Alessandro; Pasini, Giovanni. |
The crustaceans from the marine Berivotra Formation, dated as late Cretaceous, from 50 km south of Mahajanga, Madagascar contains macrurans, brachyurans and thalassinideans. Two brachyuran families, Raninidae and Dynomenidae, were previously identified with the genera Notopocorystes, Caloxanthus, Titanocarcinus, Xanthosia, and Dromiopsis. Fragmentary material now also allows the recognition of Dromioidea, Calappoidea and Xanthoidea. |
Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Decapoda; Cretaceous; Madagascar. |
Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/534294 |
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Bakel, Barry W.M. van; Jagt, John W.M.; Fraaije, René H.B.. |
Upper Cretaceous strata in the type area of the Maastrichtian Stage (SE Netherlands, NE Belgium) have yielded comparatively abundant and diverse raninid assemblages (Collins et al., 1995; Fraaye & van Bakel, 1998). To date, seven species are known: Eumorphocorystes sculptus, Pseudoraninella muelleri, Lyreidina pyriformis, Raninoides? quadrispinosus, Raniliformis chevrona, Raniliformis prebaltica and Raniliformis occlusa. These occur mainly from the upper portion of the Maastricht Formation [Emael, Nekum and Meerssen members, Belemnitella junior and Belemnella (Neobelemnella) kazimiroviensis biozones]. |
Tipo: Article / Letter to the editor |
Palavras-chave: Homonymy; Crustacea; Ichnofossils; Notopus. |
Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/534340 |
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Berg, M.P.; Wijnhoven, H.; Tempelman, D.. |
Cylisticus convexus, a rare synanthropic woodlouse in The Netherlands (Crustacea: Isopoda: Cylisticidae) Until recently, the occurrence of Cylisticus convexus (De Geer, 1778) in the Netherlands was uncertain. The only certain old record dates from March 1927, when the species was collected at the coal-shed of the Zoological Museum at Amsterdam. During the last years, two specimens have been collected on semi-natural sites. Both were found on a dike, one near Everdingen, in the province of Gelderland, and one near Ritthem, in the province of Zeeland. These are the first records of C. convexus in the field. Yet the species certainly is very rare in The Netherlands. The most important morphological characteristics of the species are described and... |
Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Isopoda; Oniscoidea; Cylisticus convexus; Verspreiding; Herkenning; Biotopen; Nederland; 42.74. |
Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/209701 |
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Ashelby, C.W.. |
A new species of Palaemon, P. vicinus spec. nov., is described from the tropical eastern Atlantic. The new species is very close to P. elegans Rathke, 1837, under which name it was previously recorded from West Africa. Palaemon vicinus spec. nov. is easily separated from P. elegans by possessing a small tooth on the fifth abdominal pleuron (quadrate in P. elegans) and by having 2-3 rows of setae in the grooming brush of the fifth pereiopod (4-5 in P. elegans). The discovery of the new species amongst material identified as P. elegans further highlights the need to reassess species level characters in the genus Palaemon. |
Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Decapoda; Caridea; Palaemonidae; Palaemoninae; New species; West Africa; 42.74. |
Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/315880 |
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Henry, D.P.; Mclaughlin, P.A.. |
Since Darwin's (1854) description of 11 varieties of Megabalanus tintinnabulum (Linnaeus) [as Balanus tintinnabulum], 26 Recent taxa have been assigned to the genus. In this review, two taxa confounded by Darwin are reestablished [i.e., M. crispatus (Schroter) and M. dorbignii (Chenu)]. M. antillensis (Pilsbry) and M. intermedius (Darwin) are placed in synonymy with M. tintinnabulum sensu stricto. M. galapaganus (Pilsbry) is synonymized with M. peninsularis (Pilsbry) and M. xishaensis Xianqui & Liu is considered a synonym of M. occator. Diagnoses and an illustrated key to the species are presented. Lectotypes are designated for M. tintinnabulum, M. crispatus, M. dorbignii, M. coccopoma (Darwin), M. spinosus (Chenu), M. validus (Darwin), and M. ajax... |
Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Cirripedia; Balanomorpha; Megabalanus; Key; Species.; 42.74. |
Ano: 1986 |
URL: http://www.repository.naturalis.nl/record/317744 |
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Fransen, C.H.J.M.; Wirtz, P.. |
The decapods Eualus lebourae, Processa modica carolii, Palaemon xiphias, Philocheras bispinosus, and Inachus phalangium are recorded from the coasts of Madeira for the first time. The decapods Hippolyte garciarasoi, Hippolyte varians, Eualus lebourae, Processa parva, Processa modica carolii, Processa robusta, Palaemonella atlantica, Periclimenes wirtzi, Philocheras bispinosus, and Philocheras fasciatus, are recorded from the coasts of the Canary Islands for the first time. Eualus occultus, Processa parva and Processa modica carolii are recorded from the Cape Verde Islands for the first time. Processa parva is also recorded for the Azores for the first time. For Eualus occultus, Hippolyte garciarasoi, Processa modica carolii, Periclimenes wirtzi and... |
Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Decapoda; Madeira; Canary Islands; Azores; Cape Verde Islands; New records; 42.74. |
Ano: 1997 |
URL: http://www.repository.naturalis.nl/record/318997 |
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Suárez-Morales, E.. |
One of the main current problems in the taxonomy of the monstrilloid copepods is the lack of detailed descriptions. Most of these descriptions are poorly illustrated making the recognition of species even more difficult. Reexamination of specimens deposited in different museums of the world has vielded new taxa but also the opportunity of redescribing these species according to upgraded standards. Two species of Cymbasoma, one from southwest England and the other from the Java Sea are redescribed from the holotype specimens following upgraded standards. Both species are compared with related forms for the first time. The former species (C. striatus) has several interesting characters of which the most important is a fringe of striations covering about half... |
Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Invertebrate taxonomy; Copepods. |
Ano: 2000 |
URL: http://www.repository.naturalis.nl/record/504854 |
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Angeli, Antonio De; Marangon, Sergio. |
Lithologically, the decapod-bearing levels of Rupelian (Oligocene) age in the Ligure Piemontese Basin, are characterized by an alternation of greyish blue marls with nodular elements and silt-rich, occasionally sandy, marls. The fossil studied for the present note have been collected mainly from pebbles or nodules which were eroded out of the higher levels exposed of this sedimentary complex, referred to as the ‘Formazione di Molare’. These levels overli the ‘Formazioni continentali delle Brecce di Costa Cravara e Pianfolco’, studied by Charrier et al. (1964) and dated as Early Rupelian. The levels yielding brachyuran fossils were attributed by Allasinaz (1987) to the transition between the ‘Formazione di Molare’ and the overlying ‘Marne di Rigoroso’, and... |
Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Decapoda; Oligocene; Italy. |
Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/534359 |
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Karasawa, Hiroaki; Takahashi, Fumio; Doi, Eiji; Ishida, Hideo. |
We record the discovery of Coleia Broderip (Eryonoidea: Coleiidae) from the Nakatsuka Formation, Mine Group, Upper Triassic of Japan. The specimens were collected from shales exposed at Tsubuta, Sanyo-cho (Yamaguchi Prefecture). Coleia co-occurs there with fragments of a penaeoid, bivalves, Halobia spp., ammonites, and plants. |
Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Decapoda; Coleiidae; Coleia; Triassic; Japan. |
Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/534361 |
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Feldmann, Rodney M.. |
Decapods are the most diverse and complex group of crustaceans, adapted for life in all parts of the marine environment, many aquatic habitats, and some terrestrial niches. With this diversity of life styles, a vast range of morphotypes of decapods has evolved, exploiting almost every imaginable variation in morphology of the complex exoskeleton that characterizes them. Many of the morphological variants are a response to exploiting a particular niche in which the organisms live or an adaptation to particular behavioral characteristics. Assessing the significance of morphological variation in the fossil record is challenging because of the taphonomic overprint that results in loss of soft tissue, preservation of partial remains of hard parts, and vastly... |
Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Decapoda; Mesozoic; Cenozoic; Behavior. |
Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/534405 |
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Aguirre-Urreta, Maria Beatriz. |
Marine deposits of the Neuquén Basin of west-central Argentina (southern South America) are richly fossiliferous; its Mesozoic invertebrate faunas, represented mostly by molluscs, have been extensively studied since the nineteenth century. However, Early Cretaceous decapod crustaceans are far less known, although part of the systematic framework has been published (Aguirre-Urreta, 1989). The aim of the present note is to provide updated information based on ongoing research into the systematics and taphonomy of this crustacean group in the Neuquén Basin. |
Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Decapoda; Cretaceous; Argentina. |
Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/534372 |
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Registros recuperados: 259 | |
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