Fossils 1

Question 1

Answer 1

Phylum: Mollusca
Class: Cephalopoda

Question 2

Answer 2

Phylum: Brachiopoda

Question 3

Answer 3

Phylum: Bryoza

Question 4

Answer 4

Phylum: Cnideria

Question 5

Answer 5

Phylum: Mollusca
Class: Gastropoda

Question 6

Answer 6

Phylum: Echinodermata
Class: Echinoidea

Question 7

Answer 7

Phylum: Echinodermata
Class: crinoidea

Question 8

Answer 8

Phylum: Mollusca
Class: Bivalvia

Question 9

Answer 9

Kingdom: Plantae

Question 10

Single cell animals, small in size. Many secrete calcareous or siliceous shells, or cement debris into agglutinated shells. Generally, distinguished by their diminutive size.

Answer 10

Phylum: Sarcodina

Question 11

Sponges. Plant-like animals, motionless, with somewhat irregular calcareous, siliceous, chitinous, or horny skeletons. Cells unorganized. Generally distinguished by their irregular shape and possession of rod-like spicules.

Answer 11

Phylum Porifera

Question 12

Hydroids, corals, sea-anemones, and jellyfish. Fossils consist mainly of corals, which are radially symmetrical and have prominent septa.

Answer 12

Phylum Cnideria

Question 13

Bi-valved animals; they exhibit bilateral symmetry, each half of each shell a mirror image of the other half (differs from Bibalvia).

Answer 13

Phylum Brachiopoda

Question 14

Moss animals. Lacy, branching, or massive colonies, individuals of very small size. Animals “home” looks like a pin hole.

Answer 14

Phylum Bryozoa

Question 15

Spiny skinned animals, with pronounced pentameral symmetry; skeletal elements are individual calcite crystals.

Answer 15

Phylum Echinodermata

Question 16

Worms, typically fossilized as trace fossils

Answer 16

Phylum Annelida

Question 17

Bivalves, snails, squids

Answer 17

Phylum Mollusca

Question 18

Includes animals with jointed legs, segmented bodies and an ezterior chitinous skeleton such as insects, lobster, spiders, and trilobites

Answer 18

Phylum Arthropoda

Question 19

Animals with a dorsal nerve cord and generally a backbone (fish, amphibians, reptiles, birds, and mammals).

Answer 19

Phylum Chordata

Question 20

Bi-valved animals with two shells generally alike (symmetrical)

Answer 20

Phylum Mollusca
Class Bivalvia

Question 21

Snails, generally coiled; lacks internal divisions

Answer 21

Phylum Mollusca
Class Gastropoda

Question 22

Squid, nautilus, and octopus. Generally, only planispirally coiled shells with internal divisions are preserved as fossils.

Answer 22

Phylum Mollusca
Class Cephalopoda

Question 23

Sea lilies; mostly attached; fossils usually occur as plates of the crinoid stem

Answer 23

Phylum Echinodermata
Class Crinoidea

Question 24

Small, pentagonal, attached, crinoids-like, fossils look like closed rose buds

Answer 24

Phylum Echinodermata
Class Blastoidea

Question 25

Starfish

Answer 25

Phylum Echinodermata
Class Stelleroidea

Question 26

sea urchins, sand dollars

Answer 26

Phylum Echinodermata
Class Echinoidea