Geology 132 Exam 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Era (Recent-Oldest) | show 🗑
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| Cenozoic (Periods and common name) | show 🗑
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| Mesozoic (Periods and common name) | show 🗑
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| show | Permian
Pennsylvanian
Mississippian
Devonian
Silurian
Ordovician
Cambrian (570MY)
"Ancient Life" - Invertabrates
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| show | 4.6BY
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| Paleontology | show 🗑
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| show | Naturally preserved remains or traces of organisms which have lived in the geologic past.
Usually found in sedimentary rocks.
Indicators of environmental conditions.
They enable us to study evolutionary trends.
We also can make age determinations.
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| show | 1. Possession of hard parts
2. Escape from immediate destruction
3. Rapid burial in a medium capable of retarding decomposition
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| show | Unaltered soft parts
Unaltered hard parts
Altered hard parts
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| show | Carbonization
Permineralization
Replacement
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| show | Molds and Casts
Tracks and Trails
Burrows and Borings
Coprolites
Gastroliths
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| Pseudofossils (4) | show 🗑
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| show | Easy Identified
Abundant
Have a wide geographic distribution
Have a limited geologic time range
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| Classification System - Order (7) | show 🗑
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| Habitats of Marine Life (3) | show 🗑
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| Mode of Life (3) | show 🗑
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| Feeding Habits (4) | show 🗑
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| Phylum Protozoa (Single-Celled)(Classification) | show 🗑
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| Phylum Porifera (Sponges)(Classification) | show 🗑
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| Phylum Cnidaria (Corals)(Classification) | show 🗑
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| show | Genus Archimedes*
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| show | Class Inarticulata
- Genus Lingula
Class Articulata
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| Phylum Mollusca (bivalve class)(Classification) | show 🗑
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| Phylum Mollusca (snails class)(Classification) | show 🗑
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| show | Class Cephalopoda
- Subclass Nautiloidea
- Genus Orthoceras
- Genus Nautilus
- Subclass Ammonoidea
- Genus Goniatites
- Genus Ceratitis
- Genus Ammonites
- Subclass Coleoidea
- Genus Belemnites
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| Phylum Arthropoda (over 80% of all living animal species)(Classification) | show 🗑
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| show | Class Blastoidea
- Genus Pentremites*
Class Crinidea
Class Asteroidea (starfish)
Class Echinoidea (sea
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| show | Class Graptolithina
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| show | Genus Receptaculites - Ordovician
Genus Archimedes - Mississippian
Genus Pentremites - Mississippian
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| Phylum Protozoa (Traits) | show 🗑
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| Phylum Porifera (Traits) | show 🗑
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| Phylum Cnidarians (Traits) | show 🗑
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| Phylum Bryozoans (Traits) | show 🗑
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| show | Inarticulata:
- Lingula is the only one alive today
- environmental indicator
Articulata:
- Bilateral symmetry perpendicular
- Valves, fold, sulcus
- Both valves preserved
Neritic
Benthonic
Paleozoic
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| show | bilateral symmetry parallel
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| Phylum Mollusca - Pelecypoda (Traits) | show 🗑
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| Phylum Mollusca - Gastropoda (Traits) | show 🗑
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| Phylum Mollusca - Cephalopoda (Traits) | show 🗑
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| show | Subclass Nautiloidea
- nautilitic sutures~
Subclass Ammonoidea
- goniatitic sutures (Silurian-Permian)~~
- ceratitic sutures (Permian-Triassic)~^~
- ammonitic sutures (Triassic-Cretaceous)~*~
Subclass Coleoidea
- Genus Belemnites=cigar fossil
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| Phylum Arthropoda (Traits) | show 🗑
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| show | "spiny skin"
Attached (Marine, Benthonic, Paleozoic)
- Class Blastoidea
- Class Crinoidea
Unattached (Marine, Benthonic, Mesozoic/Cenozoic)
- Class Asteroidea
- Class Echinoidea
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| show | looks like pencil markings
carbonization
Marine
Planktonic
Paleozoic
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