Revision of Lithostrotionella - USGS
Revision of Lithostrotionella - USGS
Revision of Lithostrotionella - USGS
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PLATE 10<br />
[All figures x 4]<br />
FIGURES 1, 2. Acrocyathusfloriformisfloriformis d'Orbigny (p. 17).<br />
USNM 161997 (paratype <strong>of</strong> <strong>Lithostrotionella</strong> hemisphaerica Hayasaka). <strong>USGS</strong> Loc. 2020-PC, Greenbrier Limestone,<br />
Virginia.<br />
1. Transverse thin section, USNM 161997a.<br />
2. Longitudinal thin section, USNM 161997b.<br />
3, 4. Acrocyathus floriformis floriformis d'Orbigny (p. 17).<br />
USNM 161993 (paratype <strong>of</strong> <strong>Lithostrotionella</strong> castelnaui Hayasaka). <strong>USGS</strong> Loc. 3159-PC, Newman Limestone, Virginia.<br />
3. Longitudinal thin section, USNM 161993b.<br />
4. Transverse thin section, USNM 161993a.
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