Ammonia maruhasii (Kuwano)
publication ID |
https://doi.org/ 10.26879/444 |
persistent identifier |
https://treatment.plazi.org/id/A029445F-E956-FFFC-48EB-BB5E7447A76B |
treatment provided by |
Felipe |
scientific name |
Ammonia maruhasii (Kuwano) |
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Ammonia maruhasii (Kuwano) View in CoL
Figure 35.3-35.6 View FIGURE 35
1950 Rotalia maruhasii Kuwano , pp. 314, 315, text-figs. 2, 8.
1968 Ammonia ketienziensis angulata (Kuwano) View in CoL — Huang, p. 55, pl. 12, figs. 8a, b (non Streblus ketienziensis Ishizaki, 1948 View in CoL ).
1988 Ammonia maruhasii (Kuwano) View in CoL — Wang, Zhang, Zhao, Min, Bian, Zheng, Cheng, and Chen, pp. 166, 167, pl. 26, figs. 14, 15, pl. 27, fig. 11.
Remarks. High trochospiral variation is included in this species. This species is distinguished from Rotalia ketienziensis Ishizaki in the lesser number of chambers, radial sutures, and less developed umbilical ornament. It also distinguished from Rotalia ketienziensis angulata Kuwano in having a more rounded periphery and radial sutures. It might be a Pliocene ancestral form of these modern Ammonia species.
Occurrence. Abundant in the Oura and Onogoshi formations, common in the Yonahama and Minebari formations.
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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Genus |
Ammonia maruhasii (Kuwano)
Hanagata, S & Nobuhara, T 2015 |
Streblus ketienziensis
Ishizaki 1948 |