Silva Center for Phycological Documentation: Index Nominum Algarum

The INA is a card file and online reporting system maintained at the Silva Center for Phycological Documentation of the University Herbarium, University of California, Berkeley. It contains nearly 200,000 names of algae (in the broad sense). The BPU is a card file containing bibliographic references pertaining to algal taxonomy.
A working list of algal type specimens at UC is available here

Results from INA database

SPHAEROCOCCITESSternberg Versuch Fl. Vorwelt 2(5/6): 28 1833
Sphaerococcites beaumontianusBrongniart ex Watelet Description des plantes fossiles du Bassin de Paris: 29 1866
Sphaerococcites blandowskianusGoeppert image
Sphaerococcites flabelliformisEttingshausen image
Sphaerococcites lerouxii_('Lerouxi')Watelet Description des plantes fossiles du Bassin de Paris: 29, pl. 1: fig. 4 1866
Sphaerococcites lichenoidesGoeppert image
Sphaerococcites pinnatifidusUnger image
Sphaerococcites tertiariusUnger Denkschr. Kaiserl. Akad. Wiss. [Wien], Math.-Naturwiss. Cl. 7{1}: 80, pl. XXIV: fig. 6 1852