Other common fossils include stromatoporoid sponges, colonial rugose and tabulate corals, brachiopods, bryozoans
, gastropods, cephalopods, and trilobites (Figs.
3 m of micritic limestone with a lag of partly silicified bryozoans
encrusting gastropod debris.
Coverage includes an overview of the topic followed by individual chapters on fossil classification and evolution, sponges, corals, bryozoans
, brachiopods, echinoderms, trilobites, mollusks, graptolites, vertebrates, land plants, microfossils, trace fossils, precambrian life, and phanerozoic life.
Small encrusting bryozoans
are scattered across portions of the vertebra's surface, particularly along the neural canal and parts of the zygapophyses and pleurapophyses.
The book offers notes drawing to the attention of curious observers many of the common invertebrates living on the old farm, including sponges, snails, clams, worms of several sorts, bryozoans
, spiders, harvestmen, pseudoscorpions, mites, crustaceans, centipedes, and millipedes.
Temperate shallow-water reef communities featuring a range of algal species and invertebrate animals such as soft corals, sponges and bryozoans
fringe many of the islands, including some located well offshore.
Settlement patterns of epifaunal organisms such as bryozoans
(Walters, 1992), barnacles (Wethey, 1986), schyphozoans (Keen, 1987), and foraminiferas (Mullineaux and Butman, 1990) have been shown to be correlated with various aspects of field flows, inferring the influence of currents on larval settlement and recruitment patterns on hard surfaces (Mullineaux and Garland, 1993).
Current biogeographical distributions of freshwater sponges (Porifera) and bryozoans
(Ectoprocta and Entoprocta) are poorly known in Indiana.
, gastropods, and pelecypods dominate the fauna, and sharks are common.
Upper Ordovician mounds in the Alabama Appalachians are dominated by bryozoans
and algae, with bachiopods arid sponges important in some mounds.
Since the creation of plastics more than 50 years ago, floating litter had provided mobile homes for marine organisms such as bryozoans
, barnacles, polychaete worms, hydroids and molluscs.
They contain a diverse and abundant fauna dominated by brachiopods, corals, stromatoporoids, bryozoans
, trilobites, and echinoderms.
Sandstones with glauconite containing remnants of complete echinoderms, bryozoans
, and sedimentary structures such as cross-bedding.
The gravel portion of the deposits are dominantly composed of chert commonly containing Paleozoic fossils of crinoids, brachiopods, corals, bryozoans
, gastropods, stromatolites, stromotoporids, and rare trilobites.
35) Besides bacteria and diatoms, other species like barnacles, serpulidae, ascidians, bryozoans
, algae, and polychaetes are the frequent fouling organisms encountered on hard substrates in Mar del Plata harbor.