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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Description: Cribrostomoides subglobosum is a brown agglutinating foraminera which made up about 98% of the sieved macrofauna samples (sieved on a 0.50 mm sieve) at Dalsnuten. The white foraminfera is the species Pyrgo sp. Item Type: Image Title: Cribrostomoides subglobosum Copyright: SERPENT project Species: Cribrostomoides subglobosum Site: Atlantic -- Norwegian -- Dalsnuten Site Description: Seafloor Depth (m): 1452 Latitude: 66 deg 34' 33" N Longitude: 3 deg 32' 46" E Countries: Norway -- Norwegian Sector Habitat: Benthic Rig: Aker Barents Project Partners: Shell, Aker Drilling, Oceaneering ROV: Magnum 142 Deposited By: Dr K Kroeger Deposited On: 24 June 2011
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This species was found to be very abundant in deeper, more marine parts of the Sandebukta (part of the Oslofjord), Norway. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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A closer view of the aperture. Aperture morphology is one of the important diagnostic characteristics for foram identification. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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The outer surface of the test is much smoother on this specimen than in most members of its species. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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This view has the aperture facing away from the viewer, at top. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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Collected in Sandebukta, an inlet of the Oslofjord in Norway. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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The typical chamber arrangement of this genus (planispiral in the early chambers, at the base, and biserial later) is evident here. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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Individual isolated from the Hamble estuary, southern England. Image courtesy of Dr. Elisabeth Alve, University of Oslo. Citation: Alve, E. and Murray, J.W. Ecology and taphonomy of benthic foraminifera in a temperate mesotidal inlet. Journal of Foraminiferal Research 24:18-27.
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A closeup of the aperture, which lies at the top of the largest chamber. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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This individual shows an unusual bending of the early chambers. Individual collected in Saanich Inlet, Vancouver Island, British Columbia. Image courtesy of R. Timothy Patterson, Carleton University. This image first appeared in J. Foram. Res. 28:201-219 and is used with permission.
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The genus name "Ammobaculites" means "sandy walking stick". As you can seem the early chambers (at bottom) coil like the top of a cane, but later chambers grow in a straight line. Individual isolated from the Hamble estuary, southern England. Image courtesy of Dr. Elisabeth Alve, University of Oslo. Citation: Alve, E. and Murray, J.W. Ecology and taphonomy of benthic foraminifera in a temperate mesotidal inlet. Journal of Foraminiferal Research 24:18-27.
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This unusual specimen has an enlarged final chamber (the one on top left). Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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Individual collected in Saanich Inlet, Vancouver Island, British Columbia. This species was most common in deep water in the center of the inlet. Image courtesy of R. Timothy Patterson, Carleton University. This image first appeared in J. Foram. Res. 28:201-219 and is used with permission.
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Reophax (ree-owe-fax), one of the foraminifera in which the series of chambers forms a linear structure rather than forming a spiral structure - which is more usual. This is the vacated test. Phase contrast.
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Ammotium species are important in estuarine environments; they often dominate shallow, hyposaline sediments. This sample was collected in an inlet of the Oslofjord, Norway. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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Foraminiferans living in polluted environments often show alterations in the morphology of their tests. This individual, isolated from a site in Norway which is contaminated with heavy metals, has an extra lump on the test (lower right) which disrupts the normal coiling pattern. Image courtesy of Dr. Elisabeth Alve, University of Oslo. Citation: Alve, E. Benthic foraminifera reflecting pollution. Journal of Foraminiferal Research 21:1-19.
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The multiple chambers of the test are less easily seen here than in most other Reophax species. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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Foraminiferans living in polluted environments often show alterations in the morphology of their tests. This individual, isolated from a site in Norway which is contaminated with heavy metals, shows severe disruption to its coiling pattern and has multiple apertures (the aperture is the opening through which the foraminiferan sends its reticulopods). Image courtesy of Dr. Elisabeth Alve, University of Oslo. Citation: Alve, E. Benthic foraminifera reflecting pollution. Journal of Foraminiferal Research 21:1-19.
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Trochamminids are common inhabitants of estuarine environments. This species was the most common of its genus in the Sandebukta, an arm of the Oslofjord, Norway. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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Foraminiferans living in polluted environments often show alterations in the morphology of their tests. This individual, isolated from a site in Norway which is contaminated with heavy metals, has a shrunken last chamber (lower right). Image courtesy of Dr. Elisabeth Alve, University of Oslo. Citation: Alve, E. Benthic foraminifera reflecting pollution. Journal of Foraminiferal Research 21:1-19.
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Notice the considerable difference in morphology between the spiral and umbilical faces. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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Reophax species have a relatively simple, linear chamber arrangement. This specimen was harvested in Nueces Bay, South Texas. Image courtesy of Pamela Stephens, Midwestern State University.
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This Middle Jurassic (Bathonian) foram is named after Posada, the Sardinian town near which it was found. The test is slightly more than 1 mm long. Image courtesy of Luca Giusberti, University of Padua. This image originally appeared in J. Foram. Res. 33:211-218, and is used with permission.