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| Registros recuperados: 45 | |
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| Wesselingh, F.P.. |
| This PhD study aims to exploit the rich archive provided by the Miocene mollusc fauna of the Pebas Formation and other inland Miocene Amazonian formations to reconstruct landscape evolution and biotic development in lowland Amazonia during the Neogene. Over 160 samples from more than 70 Pebas Formation outcrops mostly collected by the author were processed for this study. Additional samples were collected in Andean areas of Colombia and Venezuela and further material from other northwestern South American basins was studied in museums. Pebas Formation samples and well log data made available by Occidental Peru from three wells in the Marañon Basin in Peru were also investigated. During this study four genera and 74 species from the Pebas Formation have... |
| Tipo: Book (monograph) |
Palavras-chave: Amazonian biodiversity; Miocene; Mollusc fauna; Pebas Formation; 42.73. |
| Ano: 2008 |
URL: http://www.repository.naturalis.nl/record/307030 |
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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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| Hove, Harry A. ten; Nishi, Eijiroh. |
| Spirobranchus corrugatus, a little known species, is redescribed based on ample material from Australia, Indonesia, Japan and the Seychelles. The species is characterized by a seemingly porous tube, sunk into the substrate. Characteristically, the opercular plate shows a number of radial ridges on its distal surface, resembling Middle Miocene microfossils from Poland. The ventral rim of the opercular bulb of Sp. corrugatus bears numerous ocelli, with single lenses. A comparison with similar species is given. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Polychaeta; Serpulidae; Indo-Pacific; Miocene; Poland. |
| Ano: 1996 |
URL: http://www.repository.naturalis.nl/record/505214 |
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| Gaemers, P.A.M.; Langeveld, B.W.. |
| Incomplete drill holes produced by naticid snails are occasionally found in late Cenozoic gadid otoliths from the North Sea Basin. Among the Neogene otoliths found at Mill-Langenboom naticid drill holes are relatively common. Their occurrence is linked to strata that formed under reduced rates of sedimentation and/or that reflect non-sedimentation and erosion. The Upper Miocene–Upper Pliocene deposits at Mill-Langenboom (province of Noord-Brabant, the Netherlands) constitute a condensed sequence comprising most North Sea Basin stages of this interval from the Gramian to the end of the Pliocene, as demonstrated by index taxa amongst gadid otoliths, with a considerable hiatus between Miocene and Pliocene strata. The lag deposit at the base of the Pliocene... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Miocene; Pliocene; Noord-Brabant; Palaeoecology; Biostratigraphy; Chronostratigraphy; North Sea Basin. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/607550 |
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| Reich, S.. |
| Today’s global marine diversity hotspot, or center of maximum biodiversity, is located in the Indo-West Pacific (IWP), namely in the Indo-Malayan region, including Malaysia, the Philippines, Indonesia, and Papua New Guinea (Hoeksma, 2007; Renema et al., 2010). Numerous groups of marine organisms, for instance foraminifera, mollusks, and corals contribute to the high taxonomic richness (e.g., Bellwood et al., 2005; Hoeksema, 2007; Kohn, 1990; Wilson and Rosen, 1998). The exceptional biodiversity in the region is thought to have originated in the Early Neogene with the diversification of scleractinian coral reefs and associated organisms (e.g., Wilson and Rosen, 1998; Chapter 6). Because the available fossil data to document patterns of diversification of... |
| Tipo: Book (monograph) |
Palavras-chave: Miocene; Marine Mollusca; Indonesia; 42.73. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/482553 |
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| Mazo, A.V.; Montoya, P.. |
| The fossil Proboscidea from the Spanish Turolian (Upper Miocene) sites of Crevillente 2 (MN11) and Crevillente 15 and 16 (MN12) are described. The mastodont from Crevillente 2 is assigned to Tetralophodon cf. longirostris ‘grandincisivoid form’, recognised for the first time in the Iberian Peninsula, and that from Crevillente 16 to Tetralophodon longirostris. The Deinotheriidae from Crevillente 2 and Crevillente 15 are identified as Deinotherium giganteum and Deinotherium sp., respectively. The status of ‘Mastodon’ grandincisivus and the ‘grandincisivoid forms’ of Gomphotherium and Tetralophodon are discussed. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Proboscidea; Tetralophodon; Deinotherium; Miocene; Spain; 42.84; 38.22. |
| Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/219296 |
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| Wesselingh, F.P.. |
| Miocene deposits in western Amazonia and adjacent areas of South America harbour a diverse suite of endemic corbulid bivalves, commonly referred to as Pachydontinae, that show a wide variety of morphologies. Especially in the Miocene Pebas Formation (Peru, Colombia and Brazil), this group diversified spectacularly. Since these corbulids (a cosmopolitan marine and perimarine bivalve family) occur with freshwater taxa and yield isotope signals strongly indicative of freshwater settings, the success of this group in inland basins of Miocene northwestern South America is surprising. In this paper it is argued that a combination of adaptations to fluid bottom substrates, common dysoxia and high predation intensities explains their abundance, their morphological... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Corbulidae; Pachydontinae; Miocene; Amazonia; Evolution; Adaptation; 42.73; 38.22. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/209734 |
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| Wesselingh, F.P.; Kaandorp, R.J.G.; Vonhof, H.B.; Räsänen, M.E.; Renema, W.; Gingras, M.. |
| The Miocene Pebas Formation from the section Santa Rosa de Pichana (Loreto, Peru) was investigated using a combination of analyses of sedimentary facies, molluscan communities and taphonomy, and stable isotopes of both entire shells and growth bands in bivalves. Three sequences, comprising a succession of transgressive, maximum flooding and regressive/prograding intervals, are documented. Molluscs are most common in the transgressive/highstand intervals and are almost absent in regressive/prograding intervals. The fauna is dominated by endemic Pebasian species, such as Pachydon and Dyris spp. The nature of the deposits as well as the availability of oxygen varied in a predictable way within each of the sequences and determined the nature of the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Miocene; Amazonia; Palaeoecology; Sedimentology; Stable isotopes; 38.22; 42.73. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/209732 |
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| Wesselingh, F.P.; Anderson, L.C.; Kadolsky, D.. |
| The mollusc fauna of the Miocene Pebas Formation of Peruvian and Colombian Amazonia contains at least 158 mollusc species, 73 of which are introduced as new; 13 are described in open nomenclature. Four genera are introduced (the cochliopid genera Feliconcha and Glabertryonia, and the corbulid genera Pachyrotunda and Concentricavalva) and a nomen novum is introduced for one genus (Longosoma). A neotype is designated for Liosoma glabra Conrad, 1874a. The Pebas fauna is taxonomically dominated by two families, viz. the Cochliopidae (86 species; 54%) and Corbulidae (23 species; 15%). The fauna can be characterised as aquatic (155 species; 98%), endemic (114 species; 72%) and extinct (only four species are extant). Many of the families represented by a few... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Mollusca; Systematics; Pebas Formation; Miocene; Western Amazonia; 42.73; 38.22. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/209728 |
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| Wesselingh, F.P.. |
| The Miocene Pebas system was a huge (> 1 million km2) system of long-lived lakes and wetlands that occupied most of western Amazonia between c. 23 and 8 Ma. Remarkable endemic radiations of molluscs and ostracods occurred in the Pebas system. The continuity of many of the endemic lineages between c. 17 and 9 Ma shows that the system was never fully replaced by fluvial or marine settings. Many of the endemic invertebrate groups developed an unusual range of morphologies that reflect adaptation to specific ecological stresses provided by the Pebas system, such as chemical stress, common dysoxia and high predation pressure. Mollusc diversity increased especially during the Middle Miocene. The Pebas system provided pathways for mobile marine organisms to... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Miocene; Amazonia; Molluscs; Landscape evolution; Pebas Formation; 42.73; 38.22. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/209724 |
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| Blissett, D.J.; Pickerill, R.K.. |
| The Middle Eocene to Middle Miocene White Limestone Group of Jamaica contains a common and diverse, poorly to well-preserved microboring ichnofauna, namely Centrichnus eccentricus Bromley & Martinell, Curvichnus pediformis isp. nov., Dendrorete balani Tavernier, Campbell & Golubic, Dipatulichnus rotundus Nielsen & Nielsen, Entobia volzi Bromley & D’Alessandro, Entobia isp. cf. E. ovula Bromley & D’Alessandro, Entobia isp. forms A and B, Fossichnus solus Nielsen, Nielsen & Bromley, Maeandropolydora elegans Bromley & D’Alessandro, Maeandropolydora sulcans Voigt, Oichnus asperus Nielsen & Nielsen, Oichnus excavatus Donovan & Jagt, Oichnus gradatus Nielsen & Nielsen, Oichnus ovalis Bromley, Oichnus paraboloides Bromley,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Ichnotaxonomy; Microborings; Jamaica; West Indies; Eocene; Oligocene; Miocene; 38.20. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/217416 |
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| Doukas, C.S.; Hoek Ostende, L.W. van den. |
| The insectivores from the Thrace locality of Karydia (MN 4) are described, as well as an erinaceid molar from thenearby locality of Komotini (MN 5). The Karydia assemblagecontains the same genera of the Greek MN 4 localityAliveri, with the addition of a shrew and of Plesiosorex. An M2 of the latter is the southernmost occurrence of this genus, and the first record from the Mediterranean area. At the species level there are differences between Karydia and Aliveri. As Galerix kostakii n.sp. from Karydia is interpreted as a descendant of G. symeonidisi from Aliveri, a younger age for the Thrace locality, as was already assumed on the basis of the rodents, is confirmed. A model is proposed in which the symeondisi-kostakii lineage gives rise to Parasorex, of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Insectivores; New species; Evolution; Miocene; Greece; 38.22; 42.84. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/327718 |
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| Hoek Ostende, L.W. van den; Doukas, C.S.. |
| The distribution of the Early Miocene galericine Galerix symeonidisi, with records from Greece, Germany, Spain and Austria is discussed. The identification of G. cf. symeonidisi from the Anatolian Çankiri basin is changed into G. cf. uenayae on the basis of additional material. Galerix symeonidisi enters Europe at the MN 3/ MN 4 transition. Differences in the pattern of replacement of the preceding Galerix species in Germany and Spain suggest that ecological factors played a role in that replacement. Galerix symeonidisi is succeeded by G. exilis in Western and Central Europe. A G. symeonidisi - G. exilis lineage, as has been proposed in literature, is rejected. The record from the Daroca-Calamocha area (Spain) is instead interpreted as a case of gradual... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Evolutionary history; Galerix; Miocene; 38.22; 42.84. |
| Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/327789 |
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| Pickerill, R.K.; Donovan, S.K.; Portell, R.W.. |
| The ichnotaxon Teredolites Leymerie, 1842, represented by T. longissimus Kelly & Bromley, 1984, is documented for the first time from the Lesser Antilles. Its occurrence also represents the first record of the ichnotaxon from the Miocene of the Caribbean. Five specimens, each occurring in isolation without an enclosing xylic (wood) substrate, but merely calcite-lined tubes, occur in the Miocene Grand Bay Formation of Carriacou, the Grenadines, Lesser Antilles. Stratinomic considerations suggest that following physical destruction or biological decomposition of their enclosing substrate(s), the tubes may have accumulated in relatively shallow water only to be subsequently resedimented into a deeperwater (> 150 m) environment. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Teredolites; Ichnology; Miocene; Lesser Antilles; Systematics; 42.71; 38.22. |
| Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/219214 |
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| Varela, C.; Rojas-Consuegra, R.. |
| Three families, two genera and two species are recorded for the first time for the Cuban Cretaceous to Pleistocene geologic age. The genera Persephona Leach, 1817 (Leucosiidae), Mithrax Desmarest, 1823 (Majidae) and Panopeus Milne Edwards, 1834 (Panopeidae) are well known in the Recent of the Caribbean region. Fossils of these taxa are found in formations from lower Miocene to upper Pleistocene in age in the Caribbean. Portunus oblongus Rathbun, 1920, an extinct species, is the first species of Portunus Weber, 1795 recorded from Cuban Oligocene–Miocene. Lophoranina precocious Feldmann, Vega, Tucker, García-Barrera y Avendaño, 1996 (Raninidae), other extinct species, is also recorded for the Cretaceous (Campanian- Maastrichtian). This is the most ancient... |
| Tipo: Journal Contribution |
Palavras-chave: Cretaceous; Oligocene; Miocene; Pleistocene. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/3408 |
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| Carmona,Noelia B.; Buatois,Luis A.; Mángano,María Gabriela; Bromley,Richard G.. |
| The lower Miocene Chenque Formation of Patagonia contains superbly preserved and diverse ichnofaunas, including the ichnogenera Asterosoma, Balanoglossites, Chondrites, Gastrochaenolites, Gyrolithes, Helicodromites, Macaronichnus, Nereites, Ophiomorpha, Palaeophycus, Phycosiphon, Planolites, Protovirgularia, Rhizocorallium, Rosselia, Schaubcylindrichnus, Scolicia, Siphonichnus, Skolithos, Spongeliomorpha, Taenidium, Teichichnus, and Thalassinoides. Wave-influenced open-marine deposits are characterized by intense bioturbation, complex tiering structures and a very high diversity. Restricted, brackish-water, tide-dominated deposits display lesser degrees of bioturbation, less complex tiering structures and lower ichnodiversity. Both marginal- and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trace fossils; Miocene; Chenque Formation; Patagonia; Shallow marine. |
| Ano: 2008 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142008000100007 |
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| Perry,Jonathan M. G.; Kay,Richard F.; Vizcaíno,Sergio F.; Bargo,M. Susana. |
| Inferences about the diet of Miocene platyrrhine monkeys have relied upon the morphology of the molar teeth, specifically the crests on the molars. Using a library of Micro-CT images of a broad comparative sample of living platyrrhines (callitrichines, cebines, pitheciids and atelids), late early Miocene Homunculus, and the early Miocene Tremacebus and Dolichocebus, we extend these inferences by examining the surface areas of the tooth roots, anchor points for the periodontal ligaments. From muscle scars on the skull, we estimate the mechanical leverage of the chewing muscles at bite points from the canine to the last molar. Extant platyrrhines that gouge bark to obtain exudates do not have especially large canine roots or anterior premolar roots compared... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Primates; Platyrrhini; Homunculus; Miocene; Teeth; Diet. |
| Ano: 2010 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142010000300007 |
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| Registros recuperados: 45 | |
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