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Late Cretaceous-Early Palaeogene echinoderms and the K/T boundary in the southeast Netherlands and northeast Belgium — Part 5: Asteroids Naturalis
Jagt, J.W.M..
All Campanian, Maastrichtian and Danian asteroids known to date from the extended type area of the Maastrichtian Stage, are described and illustrated. The geographic and stratigraphic distribution are documented. Eighteen genera (one of them new) and at least sixty-four species (eight of them new) are listed: Astropecten? sp. nov., astropectinid sp. nov., Coulonia? sp. nov., Lophidiaster? gr. punctatus/ postornatus, L. pygmaeus Spencer, 1913, Aldebarania sp. nov., Astropectinidae indet., ctenodiscid? indet., benthopectinid sp. 1 (? spp.), benthopectinid sp. 2, Metopaster alexiae sp. nov., M. aff. carinatus Brünnich Nielsen, 1943, M. continuus sp. nov., M. decipiens Spencer, 1913, M. kagstrupensis Brünnich Nielsen, 1943, M. lisannae sp. nov., M. miriamae...
Tipo: Article / Letter to the editor Palavras-chave: Echinodermata; Asteroidea; Late Cretaceous; Early Palaeogene; Taxonomy; Stratigraphy; 42.72; 38.22.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/219134
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Results of the Rumphius Biohistorical Expedition to Ambon (1990). Part 12. The Asteroidea (Echinodermata) collected from Ambon, Indonesia Naturalis
Fujita, T.; Marsh, L.M..
During the Rumphius Biohistorical Expedition (4.xi-17.xii.1990) and some additional field trips to Ambon, a total of 26 species of asteroids were collected. Seven species were new to Ambon, and four species new to Indonesia. The asteroid fauna of Ambon is now represented by 44 species. Anthenea difficilis is transferred to the genus Gymnanthenea. Taxonomical notes are given on the collected specimens for some species.
Tipo: Article / Letter to the editor Palavras-chave: Asteroidea; Echinodermata; Ambon; Indonesia; Taxonomy; New combination; 42.72.
Ano: 2004 URL: http://www.repository.naturalis.nl/record/214413
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Systematics and zoogeography of Asteroidea (Echinodermata) from Inhaca Island, Mozambique Naturalis
Walenkamp, J.H.C..
Sixteen out of the seventeen species of shallow-water starfishes reported with certainty from Inhaca Island and Maputo Bay were collected by the author. The seventeenth, Archaster angulatus, was recorded from there by Jangoux (1973). An identification key to these species, both in English and in Portuguese is presented. Four species have not been mentioned previously from Inhaca waters, viz. Astropecten monacanthus (because of earlier incorrect identifications), Monachaster sanderi, not known to occur further south than Zanzibar, Fromia milleporella and Ophidiaster hemprichii, which were not previously known to occur south of Madagascar. Stellaster equestris was found washed ashore on a sandy beach a little north of Maputo. The earlier recorded presence in...
Tipo: Article / Letter to the editor Palavras-chave: Echinodermata; Asteroidea; Descriptions; Systematics; Rectifications; Distribution; Mozambique; Inhaca Island.; 42.72.
Ano: 1990 URL: http://www.repository.naturalis.nl/record/317600
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The Asteroids of the coastal waters of Surinam Naturalis
Walenkamp, J.H.C..
Introduction ... 3 List of the stations, where Asteroidea were collected ... 4 Taxonomic report ... 11 Survey of the species ... 18 Literature cited ... 82 Explanation of the plates ... 88 Index ... 90 INTRODUCTION The present paper deals with the Asteroidea (Echinodermata), collected during two surveys of the continental shelf of Surinam (O. C. P. S. I & II) carried out in the spring of 1966 and 1969 by H . N L . M . S. Snellius and H. N L . M . S. Luymes, respectively. During my studies I have identified and classified the sea-stars of the bottom-samples. I have also tried to solve nomenclatural problems and to correct some nomenclatural conceptions, with which I did not agree. For each species I have composed the distributional pattern...
Tipo: Article / Letter to the editor Palavras-chave: Echinodermata; Asteroidea; Surinam; Onderzoek Continentaal Plat Suriname (O.C.P.S.) I & II; 42.72.
Ano: 1976 URL: http://www.repository.naturalis.nl/record/323931
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Inferring the developmental basis of the sea star abnormality "double ambulacral groove" (Echinodermata: Asteroidea) RChHN
HOTCHKISS,FREDERICK H C.
Very rarely a ray of a sea star is unusually wide and has two parallel ambulacral grooves that extend to a single tip. Such a ray has two terminal plates that are coalesced laterally. This abnormality is inferred to develop as a rare result of regeneration because it is recorded from a species with obligate asexual reproduction (fission and regeneration of halves; no gametes). This conclusion is supported also by an example where the abnormality affects only the distal third of a ray
Tipo: Journal article Palavras-chave: Echinodermata; Asteroidea; Regeneration; Teratology; Symmetry.
Ano: 2000 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400003
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Annotated and illustrated list of echinoderms collected during the Colombian scientific expeditions to the Antarctica (2016-2019) Boletín de Investigaciones
Borrero-Pérez,Giomar H.; Yepes-Gaurisas,Daniela.
ABSTRACT In order to contribute to the base line of knowledge that is being built of the Gerlache Strait and the adjacent areas, the echinoderms collected during the Scientific Expeditions from Colombia to Antarctica carried out between 2016 and 2019 as part of the project “Biodiversity and oceanographic conditions of the Gerlache Strait, Biogerlache-Antártica” are presented. Eleven stations between 54 and 523 m deep were sampled, using sediment dredgers that captured incidentally some individuals from the mega and macro-epifauna, which were separated, reviewed and identified. Twentynine (29) individuals were obtained in five of the sampled stations, belonging to 13 morphotypes. Ophiuroidea was the richest class (five morphotypes), followed by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crinoidea; Asteroidea; Ophiuroidea; Holothuroidea; Biogerlache project..
Ano: 2021 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612021000300085
Registros recuperados: 6
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