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Ammonoidea: Quiz

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Question 1: When ammonites are found in ________ their original mother-of-pearl coating is often preserved.
ClaySandSoilSoil liquefaction

Question 2: Previously ammonoid cephalopods barely survived several earlier major ________, often with only a few species surviving from which a multitude of forms diversified.
Geologic time scaleExtinction eventPermian–Triassic extinction eventCretaceous–Tertiary extinction event

Question 3: ________ - a gemstone formed from fossil ammonite shells.
EmeraldDiamondGoldAmmolite

Question 4: One feature found in shells of the modern Nautilus is the variation in the shape and size of the shell according to the ________ of the animal, the shell of the male being slightly smaller and wider than that of the female.
GenderThird genderIntersexualityGender role

Question 5: The Ammonoidea constitute a subclass of extinct cephalopods found in marine sediments from the Early Devonian through the ________ (479—65 mya), existing for approximately 414 million years.
Cretaceous–Tertiary extinction eventDinosaurGeologic time scaleCretaceous

Question 6: Nipponites occurs in rocks of the upper part of the ________ in Japan and the USA.
Cretaceous–Tertiary extinction eventCretaceousDinosaurGeologic time scale

Question 7: This type of preservation is found in ammonites such as Hoplites from the Cretaceous Gault clay of Folkestone in Kent, ________.
EnglandScotlandUnited KingdomWales

Question 8: Calcified aptychi only occur in ammonites from the ________ era.
MesozoicCretaceousDinosaurGeologic time scale

Question 9: Bearing an external shell, ammonoids superficially resemble nautiloids, such as the modern ________ .
CephalopodNautilusArgonaut (animal)Ammonite

Question 10: Other fossils, such as many found in Madagascar and ________ (Canada), display iridescence.
British ColumbiaAlbertaManitobaQuebec







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