UNIVERSITY OF SOUTH ALABAMA. GY 112L: Earth History Lab. Mesozoic Part 2. Instructor: Dr. Douglas W. Haywick
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1 UNIVERSITY OF SOUTH ALABAMA GY 112L: Earth History Lab Mesozoic Part 2 Instructor: Dr. Douglas W. Haywick
2 Today s Agenda The Mesozoic Part 2 1) Mollusks (Cephalopods) 2) Echinoderms 3) Alabama Stratigraphy (surface rocks)
3 Mollusca (Mollusks) Mollusk Facts: Taxonomy: Phylum: Mollusca Class: Amphineura Bivalvia Gastropoda Cephalopoda Order: Nautiloidea Ammonoidea Belemnoidea
4 Mollusca (Mollusks) Mollusk Facts: Taxonomy: Phylum: Mollusca Class: Cephalopoda Order: Nautiloidea Ammonoidea Belemnoidea
5 Mollusca (Mollusks) Mollusk Facts: Taxonomy: Phylum: Mollusca Class: Cephalopoda Order: Nautiloidea Ammonoidea Belemnoidea Range: Nautiloidea (Cambrian-Recent) Ammonoidea (D-K/T) Belemnoidea (M-T)
6 Mollusca (Mollusks) Mollusk Facts: Taxonomy: Phylum: Mollusca Class: Cephalopoda Range: Nautiloidea (Cambrian-Recent) Ammonoidea (D-K/T) Belemnoidea (M-T) Mode of Life: Marine, pelagic, predators
7 Mollusca (Mollusks) Mollusk Facts: Taxonomy: Phylum: Mollusca Class: Cephalopoda Range: Nautiloidea (Cambrian-Recent) Ammonoidea (D-K/T) Belemnoidea (M-T) Mode of Life: Marine, predators Mineral composition: aragonite
8 Mollusca (Mollusks) Mollusk Facts: Taxonomy: Phylum: Mollusca Class: Cephalopoda Range: Nautiloidea (Cambrian-Recent) Ammonoidea (D-K/T) Belemnoidea (M-T) Mode of Life: Marine, predators Mineral composition: aragonite Fossil Pres.: pristine. molds, casts, chalky
9 The Mollusk Animal Nautiloids/Ammonites
10 The Mollusk Animal Belemnites
11 Cephalopod Symmetry
12 Cephalopod Symmetry
13 Cephalopod Symmetry
14 Echinoderms Echinoderm Facts: Taxonomy: Phylum: Echinodermata
15 Echinoderms Echinoderm Facts: Taxonomy: Phylum: Echinodermata Class: Crinoidea Cystoidea Blastoidea Echinodea Asteroidea
16 Echinoderms Echinoderm Facts: Taxonomy: Phylum: Echinodermata Class: Crinoidea Cystoidea Blastoidea Echinodea Asteroidea Range: NeoProterozoic-Recent
17 Echinoderms Echinoderm Facts: Taxonomy: Phylum: Echinodermata Class: Crinoidea Cystoidea Blastoidea Echinodea Asteroidea Range: NeoProterozoic-Recent Mode of Life: Marine, benthic, scavengers, filter feeders, predators
18 Echinoderms Echinoderm Facts: Taxonomy: Phylum: Echinodermata Class: Crinoidea Cystoidea Blastoidea Echinodea Asteroidea Range: NeoProterozoic-Recent Mode of Life: Marine, scavengers, filter feeders, predators Mineral composition: calcite
19 Echinoderms Echinoderm Facts: Taxonomy: Phylum: Echinodermata Class: Crinoidea Cystoidea Blastoidea Echinodea Asteroidea Range: NeoProterozoic-Recent Mode of Life: Marine, scavengers, filter feeders, predators Mineral composition: calcite Fossil Pres.: pristine +/-Chalky
20 The Echinoderm Animals Crinoids
21 The Echinoderm Animals Blastoids
22 The Echinoderm Animals Sea Stars
23 The Echinoderm Animals Sand dollars/sea Biscuits
24 Alabama Stratigraphy and Rock Suites Collections of Mesozoic surface rocks from our fair state
25 Alabama Stratigraphy and Rocks Mesozoic surface rocks (Cretaceous)
26 Mesozoic Sedimentation Cretaceous Southern rifting in the Atlantic Ocean Gulf of Mexico stops opening
27 Mesozoic Sedimentation Cretaceous Southern rifting in the Atlantic Ocean Gulf of Mexico stops opening AL Coastal Plain sedimentation
28 Mesozoic Sedimentation North South Only key formations are labeled (those discussed in GY 112)
29 Lab Time
30 GY 112L: Earth History Lab 11: Mesozoic Part 2 Instructor: Dr. Doug Haywick dhaywick@southalabama.edu This is a free open access lecture, but not for commercial purposes. For personal use only.
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