Non-Pollen Palynomorph Image Database


...“extra fossils“ in pollen slides


NPP type

Taxonomical Group


Type description

Bakker et al. 1982: Hyaline, quadratic, and cushion-shaped microfossil, c. 12-15 × 13-17 micron, and c. 6 micron thick. At the tips of the lobes there are small, hollow protuberances, c. 0.3 micron long and in diameter. Cell surface covered with numerous small pits c. 0.4 micron in diameter. The groups of Type 371 are now distinguished as Type 723, which possibly represents a coenobium formed by a closely related alga, or by Type 371 only under specific conditions.


First publication

Bakker R, van Smeerdijk DG (1982) A palaecological study of a Late Holocene section from 'Het Ilperweld', W. Netherlands. Rev. Palaeobot. Palynol. 36:95-163.

Tetraedron cf. minimum