Haplophragmoides excavatus Cushman and Waters, 1927
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https://doi.org/10.26879/660 |
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https://treatment.plazi.org/id/03B7056B-2B68-0A10-FF0E-FB6BFDDFF8AC |
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Felipe |
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Haplophragmoides excavatus Cushman and Waters, 1927 |
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Haplophragmoides excavatus Cushman and Waters, 1927 View in CoL
Figure 18.18 View FIGURE 18
1927 Haplophragmoides excavatus ; Cushman and Waters, p. 82, pl. 10, fig. 3a-b.
2005 Haplophragmoides excavatus Cushman and Waters ; Kaminski and Gradstein, p. 360, pl. 82, figs. 1-7.
Material. Four specimens from three samples.
Description. Test free, subcircular in outline, planispirally involute coiled with depressed umbilicus, lobate and carinate periphery. Chambers ( 12–13 in the last whorl) increase very slowly in size. Sutures few incise. Wall finely agglutinated, surface smooth.
Distribution. Late Cretaceous–Oligocene ( Kaminski and Gradstein, 2005).
Remarks. Haplophragmoides excavatus differs from H. carinatus and H. walteri in having a more circular periphery, and a greater number of chambers in the last whorl.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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