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

ECHINIDINIUMZonneveld ex M.J. Head et al. Journal of Quaternary Science 16: 633 2001
Echinidinium aculeatumZonneveld ex Mertens et al. Marine Micropaleontology 159{101773}: 30, pl. 18: figs. 7-9 2019
Echinidinium transparantumZonneveld ex Mertens et al. Marine Micropaleontology 159{101773}: 31, pl. 19: figs. 7-9 2019
Echinidinium zonneveldiaeM.J. Head Journal of Micropalaeontology 21: 172, fig. 2, pl. 1 2002