Microfossils

Question 1

front appendage in ostracodes, used for swimming or stability

Answer 1

Antennule

Question 2

opening in foraminifera through which most of the soft tissue projects.

Answer 2

Aperture

Question 3

organism that synthesizes organic compounds from inorganic materials. Such organisms are sometimes called
producers.

Answer 3

Autotroph

Question 4

bottom-dwelling organisms.

Answer 4

Benthos

Question 5

depth in the oceans at which calcite becomes unstable and may dissolve

Answer 5

Calcite compensation depth (CCD)

Question 6

term for “shell” used for ostracodes

Answer 6

Carapace

Question 7

circular diatoms with radial symmetry

Answer 7

Centrales

Question 8

one repeated element of calcareous foraminiferal tests

Answer 8

Chamber

Question 9

cusp-shaped conodont elements.

Answer 9

Coniform

Question 10

lithified diatom oozes

Answer 10

Diatomites

Question 11

• organism living on the surface of the sediment

Answer 11

Epifaunal

Question 12

• term for “shell” used for diatoms.

Answer 12

Frustule

Question 13

• coccoliths formed from crystals of varying
  sizes

Answer 13

Heterococcoliths

Question 14

organism that consumes other organisms
or decaying matter. Such organisms are sometimes called consumers.

Answer 14

Heterotroph

Question 15

coccoliths formed from identically sized
calcite crystals

Answer 15

Holococcoliths

Question 16

organism living within sediment

Answer 16

Infaunal

Question 17

large spores up to 4 mm in diameter.

Answer 17

Megaspores

Question 18

submicroscopic fossils generally less than
50 um

Answer 18

Nannofossils

Question 19

• submicroscopic floating organisms

Answer 19

Nannoplankton

Question 20

radiolarians with conical tests

Answer 20

Nassellaria

Question 21

• depths of ancient marine deposits.

Answer 21

Palaeobathymetry

Question 22

study of spores and pollen.

Answer 22

Palynology

Question 23

broad-based, multicusped conodont elements.

Answer 23

Pectiniform

Question 24

organism living within the water column.

Answer 24

Pelagic

Question 25

elliptical diatoms with bilateral symmetry

Answer 25

Pennales

Question 26

• lighted part of the water column.

Answer 26

Photic zone

Question 27

microscopic, photosynthetic, floating organisms. The two main groups are the diatoms and dinoflagellates

Answer 27

Phytoplankton

Question 28

floating lifestyle within the water column

Answer 28

Planktonic

Question 29

• equivalent to autotrophs. Organisms that
  produce organic substances from inorganic material. Primary producers are usually photosynthetic organisms.

Answer 29

Primary producers

Question 30

very general term for material contained within the cell.

Answer 30

Protoplasm

Question 31

strands of protoplasm that aid locomotion and trap food in foraminifera.

Answer 31

Pseudopodia

Question 32

blade-like, multicusped conodont elements.

Answer 32

Rarniform

Question 33

sensory bristles in ostracodes.

Answer 33

Setae

Question 34

radiolarians with spherical tests.

Answer 34

Spumellaria

Question 35

term for “shell” used for foraminiferam and radiolarians.

Answer 35

Test

Question 36

fossils that characterize particular sections of the stratigraphic record.

Answer 36

Zone fossils

Question 37

nonphotosynthetic floating organisms, that
feed on phytoplankton or suspended organic matter.

Answer 37

Zooplankton