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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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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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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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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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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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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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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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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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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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This "top" view emphasizes the flattened morphology of the test and aperture. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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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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This specimen has an unusual widening near the aperture. 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 particularly common in brackish-water assemblages but was also found in marine conditions. 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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Collected in the Sandebuska, 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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description to come
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This specimen has an unusual widening near the aperture. 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 side view of the test, which is 1.1 mm long. The aperture is toward the top; the bottom forms the tight coil typical of species in this genus. Image courtesy of David B. Scott, Dalhousie University. This image was originally published in
Palaeologica Electronica, vol. 3, issue 2, and is used with the kind permission of that journal and the Paleontological Association.
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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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Discription to come
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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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Discription to come
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Collected in an inlet of Oslofjord, Norway. Unlike its relative, Ammoscalaria pseudospiralis, A. runiana is found more commonly in mudflat areas than in typical marine conditions in the Oslofjord. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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Discription to come
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This species prefers deeper, stiller, more marine waters than other members of its genus. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.