gly 1102 topic 36
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All pterosaurs' skulls have huge eye sockets.
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true
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The 400-500 teeth in each jaw of Pterodaustro may have been used as a sieve for filtering out plankton scooped up into its mouth.
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true
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Most endotherms bear live young.
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true
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Ramphorhyncoids went extinct prior to the great extinction of dinosaurs at the end of the Cretaceous.
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true
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In most pterosaurs, the scapula and coracoid are fused to form a
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scapulocoracoid
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Pterosaurs have a global distribution.
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true
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The pterosaurs diversified into several lineages during the Lower Triassic.
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false
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Pterosaurs were the first vertebrates to develop flapping flight.
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true
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All pterosaurs lacked teeth.
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false
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The (blank) was a pterosaur membrane that extended from the fifth toe to the tail along the posterior edge of the leg.
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uropagatia
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Only endothermic animals have developed the ability to fly.
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true
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Which vertebrates were the first to be capable of powered flight?
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pterosaurs
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The shape of the deltopectoral crest is used to differentiate pterosaur clades.
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true
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The earliest pterosaurs are from the (blank) of Italy.
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Upper Triassic
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Some Rhamphorhynchus specimens have a membranous tail vane.
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true
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Which statement about pteranodons is false?
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They were all filter feeders. (True: They are toothless. They are the largest pterosaurs. They exhibit sexual dimorphism. They have global distribution.)
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A decrease in abundance and diversity of pterosaurs during the Cretaceous, most probably was caused by
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diversification of marine birds.
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There is no evidence that pterosaurs had body hair.
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false
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Pterosaurs have a small head, relative to body size.
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false
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There is no evidence of sexual dimorphism in pterosaurs.
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false
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Pteranodons are among those pterosaurs exhibiting a number of anatomical differences between the sexes.
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true
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The (blank) is a small membrane spanning the area between the shoulder and the wrist of pterosaurs.
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propatagium
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The main wing membrane of pterosaurs is the
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patagium.
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The pterosaur images in your text reveal that this South American country has a rich fossil record of these winged creatures.
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Brazil
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The pterosaur humerus has a large (blank), an anterior projection for the anchoring of flight muscles.
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deltopectoral crest
