millions of years ERA PERIOD 0 trum 100- 500 Mesozoic 600- Paleozoic Neogene Paleogene Cretaceous Jurassic Triassic Permian Carboniferous Devanian Silurian Ordovician Cambrian Vendian TODAY Gastropods / Pelecypods (Bivalves) Not examined in the Fossil Lab elamnoids X Y N X [Select] N Image Link: Fossil 2 1. For the six dark-shaded groups above, identify those least useful for identifying the ages of rocks in which they occur. 2. The dinosaurs went extinct 65 million years ago - which groups died with them? In which Geologic Period(s) did all the above fossil groups exist together? [Select] 3. Specimens labelled X, Y and Z all belong to the same Mollusk/Cephalopod group, which is the [Select] [Select]

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Question
millions
of years ERA PERIOD
0
+TTTTTT
100-
400
600-
Neogene
Paleogene
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Vendian
Image Link: Fossil 2
TODAY-
Trilobites
Ammonoids
rachiopods
Gastropods / Pelecypods (Bivalves)
Not examined in the Fossil Lab
Belamnoids
X Y
N
X
Z
1. For the six dark-shaded groups above, identify those least useful for identifying the ages of rocks in which they occur:
2. The dinosaurs went extinct 65 million years ago - which groups died with them? [Select]
In which Geologic Period(s) did all the above fossil groups exist together? [Select]
3. Specimens labelled X, Y and Z all belong to the same Mollusk/Cephalopod group, which is the [Select]
[Select]
Transcribed Image Text:millions of years ERA PERIOD 0 +TTTTTT 100- 400 600- Neogene Paleogene Cretaceous Jurassic Triassic Permian Carboniferous Devonian Silurian Ordovician Cambrian Vendian Image Link: Fossil 2 TODAY- Trilobites Ammonoids rachiopods Gastropods / Pelecypods (Bivalves) Not examined in the Fossil Lab Belamnoids X Y N X Z 1. For the six dark-shaded groups above, identify those least useful for identifying the ages of rocks in which they occur: 2. The dinosaurs went extinct 65 million years ago - which groups died with them? [Select] In which Geologic Period(s) did all the above fossil groups exist together? [Select] 3. Specimens labelled X, Y and Z all belong to the same Mollusk/Cephalopod group, which is the [Select] [Select]
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