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31 Cards in this Set
- Front
- Back
What is the name of the oldest fossils? |
Cyanobacteria |
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The oldest known fossils (Cyanobacteria) were born in 3.5 billion years ago in what age? |
Archean |
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explosion of multicellular life happened in what period? |
Cambrian |
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Burgess shale was the __________ of soft bodied animals and was found in ______________ |
1. preservation 2. B.C |
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What was the age of the fishes |
Silurian and Devonian |
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What fish had no true teeth or jaws, just bony plates? |
Armoured fish |
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What is an example of an armoured fish? |
Dunkleostus |
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What is an evolutionary advantage that bony fishes without armor have over armoured fish? |
more mobile (Better able to catch moving food) |
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True or false: Some members of the bony fish family developed lungs which could breathe air |
True |
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What age was the earliest amphibian born |
Devonian |
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What family did amphibians develop from? |
Bony fish that had lungs |
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The earliest reptiles where from what age? |
Carboniferous |
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True or False: reptiles needed to spend time in the water |
False |
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What age were the first mammals born? |
Jurassic |
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What was the age of the reptiles |
Mezezoic ( Triassic, Jurassic, Cretaceous) |
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The KP/g Extinction killed of about ________ of all known animals and happened around _______ Ma years ago |
1. 60% 2. 65 |
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A 1 cm clay layer with high _________ content marks the boundary between the _________ and __________ |
1. Iridium 2. Cretaceous 3. Paleogene |
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What 3 reasons made scientists hypothesize that the KP/g extintion resulted from an asteroid impact? |
High iridium content Glassy beads Quartz grains |
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When did the biggest extinction event occur? |
The end of the Permian (248 Ma) |
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What dinosaurs belong to the Saurischia (lizard- hipped) (2 answers) |
- Sauropods - Theropods |
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What dinosaurs belong to the Ornithischia (bird hipped) (4 answers) |
- Hadrosaurs - Stegosaurs - Ceratopsians - Ankylosaurs |
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Hadrosaurs (duckville dinosaurs) lived in which age? |
Late Cretaceous |
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Ankylosaurs (spikey armor and mace tails) lived in what age? |
Late Jurassic- Late Cretaceous |
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Ceratopsians (triceratops) lived in what age? |
Late Cretaceous |
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Stegosaurs (Plates on back) lived in what age? |
Mid Jurassic- Late Cretaceous |
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early Theropods (non avian) lived i what age? |
Triassic |
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Sauropods (long neck, long tail) lived in what age? |
Late Jurassic- Late Cretaceous |
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Most major groups of theropods lived in what age? |
Cretaceous |
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Tyrannosaurs are a type of what type of dinosaur? and what age did they life in? |
1. Theropods 2. Late Cretaceous |
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Birds are avian ____________ |
Theropods |
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Modern paleontology is not just about old bones but it is __________ |
interdisciplinary |