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GL2017 > Trace Fossils > Flashcards

Trace Fossils Flashcards

1
Q

What is the study of true fossils called?

A

Ichnology

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2
Q

Are Impression fossils trace fossils

A

no

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3
Q

Advantages of trace fossils

A

-Not transportable
-preserved in sandstones
-enhanced by weathering and burial
-indicate fossi behaviour

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4
Q

Problems with trace fossils

A

-unknown creator
-one organism = several kinds of trace fossil
-different organisms = same type of trace fossil

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5
Q

Type of trace fossil: Cubichnia

A

Resting traces

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6
Q

Type of trace fossil: Repichnia

A

Locomotion traces

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7
Q

Type of trace fossil: Domichnia

A

Dwelling traces

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8
Q

Type of trace fossil: Fodichnia

A

Feeding traces

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9
Q

Type of trace fossil: Pascichnia

A

Grazing traces

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10
Q

Type of trace fossil: Agrichnia

A

Farming traces

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11
Q

Type of trace fossil: Fugichnia

A

Escape traces

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12
Q
A

Cubichnia, Resting traces

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13
Q
A

Repichnia, Locomotion traces

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14
Q
A

Domichnia, Dwelling traces

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15
Q
A

Fodichnia, Feeding traces

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16
Q
A

Pascichnia, grazing trace

17
Q
A

Agrichnia, Farming traces

18
Q
A

Fugichnia, escape traces

19
Q

What environment is lots of grazing and farming traces indicative of?

Nereites facies

A

Deep Marine

20
Q

What environment is mostly feeding traces indicative of?

Zoophycos facies

A

Abyssal to shallow shelf

21
Q

What environment is lots of moving and resting traces indicative of?

Cruziana facies

A

shelf environment above storm base

22
Q

What environment is lots of dwelling, feeding and escaping traces indicative of?

Skolithos facies

A

Intertidal or stressful conditions

23
Q

What environment is lots of low diversity, small vertical burrows traces indicative of?

Psilonichus facies

A

supra tidal (very shallow basically on land)

24
Q

What environment is lots of feeding, dwelling and moving traces indicative of?

Scoyenia facies

A

really shallow, soil

25
Q

What environment is lots of burrow traces indicative of?

Glossifungites

A

Firm grounds (commonly intertidal or shallow marine)

26
Q

Environment for Nereites

A

Deep marine

27
Q

Environment for Zoophycos

A

Abyssal to shallow shelf

28
Q

Environment for Cruziana

A

Shelf environments, above sorm base

29
Q

Environment for Skolithos

A

Intertidal, or stressful conditions

30
Q

Environment for Psilonichnus

A

Supratidal (very shallow basically land)

31
Q

Environment for Scoyenia

A

soil

32
Q

Environment for Glossifungites

A

form grounds (commonly intertidal to shallow marine)

33
Q

Environment for Teredolites

A

Wood

GL2017 (8 decks)

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