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19 Cards in this Set
- Front
- Back
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Olenellus
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Arthropoda-Trilobita
Lower Cambrian Only Third segment has elongated spine |
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Cryptolithus tessalatus
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Anthropoda-Trilobita
Ordivician Trapezoidal head plate |
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Tetragraptus
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Hemichordata- Graptoloidea
Lower Ordivician only (*Didymograptus only has two "branches"- Lower to middle ordivician) |
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Climacograptus
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Hemichordata- Graptoloidea
Ordivician- Lower Silurian |
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Dalmanella
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Brachiopoda-Articulada
Ordvician- Lower Silurian width is very thin, straight line from the side |
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Atrypa
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Brachiopoda-Articulada
Sillurian-Devonian |
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Mucrospirifer
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Brachiopoda-Articulada
middle Devonian |
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Favosites
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Cnidaria- Tabulata
Upper Ordivician- Middle Devonian tabulae present in vertical section |
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Heliophyllum
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Cnidaria-Rugosa
Lower- Middle Devonian looks like thick tree roots |
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Pentremites
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Echinodermata-Blastoidea
Mississippian-Pennsylvanian star shaped when looking from top looks like pod from movie "Alien" |
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Harpoceras
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Cerphalopoda-Ammonitida
Lower Jurassic: Lower Toarcian |
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Dactylioceras
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Cephalopoda-Ammonitida
Lower Jurassic: Lower Toarcian |
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Scaphites
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Cephalopoda-Ammonitida
Cretaceous: Albanian-Campanian |
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Baculites
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Cephalopoda-Ammonitida
Upper Cretaceous: Turonia-Maustrichtian looks like jig saw puzzles "the walking stick" |
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Belemnitella
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Cephalopoda-Ammonitida
Upper Cretaceous an ancestor of squids- hinting its squid-like shape |
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Gryphaea
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Bivalvia-Ostreoida
Upper Triassic- Jurassic |
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Exogyra
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Bivalvia-Ostreoida
Cretaceous looks like hair when looking from top |
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Inoceramus
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Bivalvia-Praecardioida
Jurassic-Cretaceous |
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Venericardia
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Bivalvia-Carditoida
Paleocene-Eocene |
