抄録
This paper describes the aquatic palynomorphs of microfaunal remains (fossils) that are mainly first consumers in the food chain. These palynomorphs include lorica and cysts of protozoan ciliates, shells of testate amoebae, linings of benthic foraminifera, dormant eggs and body parts of crustacea, turbellarian egg capsules, and maxillary organs of annelids. These microfaunal remains have quite different morphologies from those of parent organisms. Acritarchs, which are treated as organic-walled microfossils of unknown affiliation in micropaleontology, because their parent organisms are currently unknown, but probably eukarotic organisms, and are classified mainly on the basis of morphological characteristics, are also described in this paper. As mentioned in the previous paper (Constituent organisms of aquatic palynomorph assemblage - Part 1 primary producers), one of the goals of paleoecology is to elucidate the interrelationships among organisms. The relationship between resting egg of copepods and dinoflagellate cysts preserved in sediments was examined, because it is known that copepods, which are abundant in the aquatic palynomorphs of coastal waters, feed on various organisms including dinoflagellates.
