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| Donovan, S.K.; Jagt, J.W.M.. |
| A single example of Oichnus excavatus Donovan & Jagt, infesting the holasteroid echinoid Hemipneustes striatoradiatus (Leske), is reported from the upper Meerssen Member, Maastricht Formation (uppermost Maastrichtian), of the former Blom quarry, Berg en Terblijt, southern Limburg, The Netherlands. This is the first evidence that O. excavatus may be more widely distributed in the type area of the Maastrichtian than previously assumed. The embedment structure occurs just below the ambitus and close to the peristome, suggesting that the producing organism may have been ingesting detritus from the sea floor rather than filter feeding, the more usual interpretation of its behaviour. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Embedment structure; Trace fossils; Oichnus; Echinoids; Hemipneustes; Maastrichtian; The Netherlands; 42.72. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/210110 |
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| Pierrat, Benjamin; Saucede, Thomas; Festeau, Main; David, Bruno. |
| This database includes spatial data of Antarctic, Sub-Antarctic and cold temperate echinoid distribution (Echinodermata: Echinoidea) collected during many oceanographic campaigns led in the Southern Hemisphere from 1872 to 2010. The dataset lists occurrence data of echinoid distribution south of 35 degrees S latitude, together with information on taxonomy (from species to genus level), sampling sources (cruise ID, sampling dates, ship names) and sampling sites (geographic coordinates and depth). Echinoid occurrence data were compiled from the Antarctic Echinoid Database (David et al. 2005a), which integrates records from oceanographic cruises led in the Southern Ocean until 2003. This database has been upgraded to take into account data from oceanographic... |
| Tipo: Text |
Palavras-chave: Southern Ocean; Echinoids; Antarctic species; Sub-Antarctic species; Cold temperate species. |
| Ano: 2012 |
URL: https://archimer.ifremer.fr/doc/00296/40763/39773.pdf |
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| Lewis, D.N.; Donovan, S.K.. |
| Collections in museums usually have boxes of specimens which remain ‘undiscovered’ and yet which may be of importance or interest. The recent rediscovery of specimens of Archaeocidaris in the Nationaal Natuurhistorisch Museum, Leiden, from the Carboniferous of Egypt illustrates this point. These specimens were collected in 1938 by Dr. H.M.E. Schürmann (1891-1979), who had been a student of Professor J. Wanner (1878-1956), the noted expert on fossil echinoderms. The Egyptian Archaeocidaris plates include interambulacrals and radioles. These are closest to Archaeocidaris rossica (von Buch) from the Moscow area of Russia, although there are sufficient differences in radiole morphology to suggest that they are not necessarily conspecific. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Systematics; Echinoids; Archaeocidaris; Carboniferous; Egypts; 42.72. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/210114 |
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| Fabri‐ruiz, S; Danis, B; Navarro, N; Koubbi, Philippe; Laffont, R; Saucède, T. |
| The Southern Ocean (SO) is among the regions on Earth that are undergoing regionally the fastest environmental changes. The unique ecological features of its marine life make it particularly vulnerable to the multiple effects of climate change. A network of Marine Protected Areas (MPAs) has started to be implemented in the SO to protect marine ecosystems. However, considering future predictions of the Intergovernmental Panel on Climate Change (IPCC), the relevance of current, static, MPAs may be questioned under future scenarios. In this context, the ecoregionalization approach can prove promising in identifying well‐delimited regions of common species composition and environmental settings. These so‐called ecoregions are expected to show similar biotic... |
| Tipo: Text |
Palavras-chave: Climate change; Echinoids; Ecological niche modeling; Ecoregionalization; Marine Protected Areas. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00606/71809/70298.pdf |
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| Donovan, S.K.; Portell, R.W.; Veltkamp, C.J.. |
| Despite being diverse globally, Miocene echinoids are poorly known from Jamaica. Moderately diverse echinoids and other echinoderms have been identified mainly from fragmentary specimens collected from chalks and mass-flow deposits of the Lower Miocene Montpelier Formation, White Limestone Group, near Duncans, parish of Trelawny. This locality has yielded the most diverse association of fossil echinoderms known from the Miocene of Jamaica, including at least ten species in four classes. This fauna is comprised of the isocrinid crinoids Neocrinus sp. cf. N. decorus (Wyville Thomson) and Isocrinus sp.; the ophiuroid Ophiomusium? sp.; the asteroids Astropecten? spp.; and the echinoids Prionocidaris? sp., Histocidaris sp., Echinometra sp. cf. E. lucunter... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Systematics; Crinoids; Asteroids; Ophiuroids; Echinoids; Neogene; Caribbean; 42.72. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/210104 |
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