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Ditrupa

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‘ <b>Ditrupa</b> ’ indistinctum (Fleming). Lateral view of holotype from West Loth...
Published: 01 May 2011
Fig. 4 ‘ Ditrupa ’ indistinctum (Fleming). Lateral view of holotype from West Lothian, described and figured by Fleming (1825) ×1. NMS.G.1870.14.343 [formerly RSM1870.14.343].
Series: Geological Society, London, Special Publications
Published: 01 January 2014
DOI: 10.1144/SP391.7
EISBN: 9781862396678
... 1–1.5 m-thick detrital biogenic and glauconitic sand; above this, is a 2 m-thick layer of sandy limestone with Nummulites Leavigatus and coarse bioclastic limestone with Ditrupa . Then there is a 3.5–5 m-thick layer of irregular limestone beds with Ditrupa , or ‘Banc de Saint-Leu’ layer...
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Journal Article
Journal: PALAIOS
Published: 01 August 2001
PALAIOS (2001) 16 (4): 336-353.
... the lower reaches of the delta front. These are characterized by densely packed shell beds and the occurrence of echinoderm obrution deposits. Recurring sedimentological assemblages from sandstones, characterized by the sandy bottom Spisula and Ditrupa communities, and in situ faunas from intervening...
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Journal Article
Published: 01 May 2001
Proceedings of the Yorkshire Geological Society (2001) 53 (3): 253-255.
...C. P. Palmer SUMMARY The holotype of Dentalium giganteum Phillips 1829 , and specimens in the Natural History Museum, London, have been examined and shown to be not scaphopods, but Ditrupa-like, serpulid tubes. Several of the Natural History Museum specimens have constricted apertures, and some...
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Image
FIGURE 9 —Distribution of selected taxa and interpreted community replaceme...
in > PALAIOS
Published: 01 August 2001
to Bittium ) or turbid waters ( Ditrupa ) in the middle part; the three species on the far right are indicative of oxygenated muddy bottoms. Shell beds show a passage from Spisula to Arctica (here only reworked elements), to Ditrupa , and to Venus associations. The paleoecological analysis suggests
Image
A ) Very fine arenite with abundant planktonic foraminifera (including  Orb...
Published: 23 December 2013
= Planorbulina sp., El= Elphidium sp.; D ) Calcarenite composed by benthic foraminifera, Ditrupa sp. and fragments of echinoids, bivalves and bryozoans: D= Ditrupa sp., H= Heterostegina sp.; E ) Calcarenite with benthic foraminifera, fragments of echinoids and bioclastic debris; F ) Calcarenite
Image
FIGURE 8 —Distribution of selected taxa and community replacement sequence ...
in > PALAIOS
Published: 01 August 2001
FIGURE 8 —Distribution of selected taxa and community replacement sequence in P 2 small-scale sequences (basal sequence of the Stirone section). Species indicative of sandy bottoms to the left ( Spisula to Ditrupa ); moving towards the right side, selected species are indicative of shell-gravel
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Location and stratigraphic log of the type section of Santa Franca (SF) cro...
Published: 20 April 2018
is in red. B Stratigraphic log of the Piacenzian type section of Santa Franca. In red are the samples containing specimens of Colominella ; a arenaceous levels containing Colominella in an assemblage with very abundant larger algal-symbiont-bearing Amphistegina, serpulids ( Ditrupa ) and mollusc
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( a ) Gravelly-sandy lenticular bodies of proximal delta front environment ...
Published: 01 June 2013
Fig. 5 ( a ) Gravelly-sandy lenticular bodies of proximal delta front environment (FA 2a); ( b ) Inverse-grading and imbrication in basal conglo-metare layers of FA 2a; ( c ) Massive appearance of distal delta front deposits (FA 3); ( d ) Faint high-angle lamination, marked by ditrupa fragments
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Facies diagnosis of the Miocene bioclastic deposits of Uzès-Castillon basin...
Published: 01 September 2012
: bivalves, ECH: echinids, FOR: foraminifers (mostly benthic, P for planktik), GAS: gastropods, BRA: brachiopods, GAL: green algae. May also be present in all facies: SPI: sponge spicules, SER: serpulids, DIT: Ditrupa , RAD: radiolarians, COR: corals, ART: arthropods, SHK: shark teeth, MIC: microbialites
Image
Range distribution of 81 calcitic-shelled macrofossils found in the latest ...
Published: 01 July 2000
, Astropecten sp.; 10, cidarid spine type K ; 11, Ditrupa sp.; 12 , Tiaromma michelini (Agassiz); 13 , Tylocidaris cf. clavigera (Mantell); 14, Limaria elongata (J. de C. Sowerby); 15 , Plicatula inflata (J. de C. Sowerby); 16 , Amphidonte obliquata (Pulteney); 17 , Glomerula gordialis (von
Journal Article
Published: 01 January 2008
Journal of Paleontology (2008) 82 (1): 206-212.
...-fibrillar structure sensu Carter et al. (1990) . Also, various simple and spherulitic prismatic structures have been observed in serpulid polychaetes (see below). All Recent free-living serpulids; Ditrupa arietina , Ditrupa gracillima ( ten Hove and Smith, 1990 ), Serpula crenata...
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Journal Article
Published: 01 May 2011
Scottish Journal of Geology (2011) 47 (1): 67-79.
...Fig. 4 ‘ Ditrupa ’ indistinctum (Fleming). Lateral view of holotype from West Lothian, described and figured by Fleming (1825) ×1. NMS.G.1870.14.343 [formerly RSM1870.14.343]. ...
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Journal Article
Published: 01 April 2006
Journal of Micropalaeontology (2006) 25 (1): 35-36.
... MPA 52953) differed by containing abundant wood fragments, common worm tubes of Ditrupa plana (Sowerby), together with bivalve fragments, diatoms, including common Fenestrella antiqua , and broken gastropods. Similar pockets of wood have been described from South Ockendon by George & Vincent...
FIGURES
Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP416.16
EISBN: 9781862397187
...; and ferruginous sandstones that are often coarse and porous. They were dated to the Thanetian/Ypresian (Fig. 2 ). Ditrupa limestones (DIT1) comprise three main facies: a fine-grained facies; a bioclastic facies; and a partly detrital and sandy facies. These packstones contain Ditrupa strangulata...
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Series: Geological Society, London, Special Publications
Published: 01 January 2014
DOI: 10.1144/SP391.9
EISBN: 9781862396678
... , the Brussels stone can possibly be correlated with the lower Lutetian deposits in the synthetic log of Gély (2009) . The overlying Lede stone might correspond to the lowest deposits of the middle Lutetian in the same log, based on the occurrence of Ditrupa strangulata . This would infer that the Ditrupa...
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Series: Geological Society, London, Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.SP.2006.255.01.14
EISBN: 9781862395039
... from palaeo-seagrass meadows (KH to BC; Fig. 9 a) to progressively more restricted marginal marine clays inboard (T3: Fig. 6 ). Uppermost regressive units are widespread, thinly bedded clay and Marginopora – Ditrupa –molluscm rudstone with numerous pot and gutter casts (T4: Fig. 6 ). They represent...
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Journal Article
Published: 23 December 2013
Italian Journal of Geosciences (2013) 133 (1): 85-100.
...= Planorbulina sp., El= Elphidium sp.; D ) Calcarenite composed by benthic foraminifera, Ditrupa sp. and fragments of echinoids, bivalves and bryozoans: D= Ditrupa sp., H= Heterostegina sp.; E ) Calcarenite with benthic foraminifera, fragments of echinoids and bioclastic debris; F ) Calcarenite...
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Journal Article
Journal: PALAIOS
Published: 01 September 2011
PALAIOS (2011) 26 (9): 578-593.
... followed by dispersed occurrences of Flabellum sp., cardiids, Aequipecten opercularis, Ostrea edulis, Pinna nobilis in life position, vermetids, Ditrupa arietina, Serpula sp., and Terebratula sp. Pinna in life position and other isolated bivalve shells occur also in the higher part of this siltstone layer...
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Journal Article
Published: 01 January 2004
Rocky Mountain Geology (2004) 39 (2): 85-91.
... shells: Ditrupa (Pilsbry and Sharp, 1898, p. 244) is a prime example. We may, therefore, excuse F. B. Meek in 1860 for describing a square-sectioned calcareous tube as Dentalium? subquadratum , which is abundantly present in a bed of sandstone from the Jurassic of Wyoming ( Fig. 1 ). Pilsbry...
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