Exam (elaborations)
Dino mid 1 (1)
Exam of 4 pages for the course CORE-ELAR at CORE-ELAR (Dino mid 1 (1))
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Dino mid 1Fossil - CORRECT ANSWER-AY history of prehistoric life, remains or impression of
prehistoric organism, preserved in petrified form or as a mold or cast in rock
permineralization - CORRECT ANSWER-minerals carried by water precipitate in
empty organic spaces, mainly hard parts
phosphatization - CORRECT ANSWER-calcium phosphate precipitates in tissue,
soft tissue preservation
taphonomy - CORRECT ANSWER-study of circumstances of burial and fossil
preservation of organismal remains - process of fossilization
rare event - CORRECT ANSWER-animal quickly killed and destroyed, rapidly breaks
down
what can cover remains quickly in a rare event - CORRECT ANSWER-water, light
sediment (ash or sand), amber/tar
melanosomes - CORRECT ANSWER-vesicles within cells that contain the pigment
melanin
ichnofossils (trace fossils) - CORRECT ANSWER-skin and body impressions, tracks,
fossil feces (coprolites)
Index fossils - CORRECT ANSWER-fossil that is used to define and identify geologic
periods
index fossils must be - CORRECT ANSWER-distinctive, widespread, short range
through time, wide geographic distribution
anapsid - CORRECT ANSWER-no temporal fenestrea - no living representatives -
An = none
synapsid - CORRECT ANSWER-one temporal fenestrae - mammals - syn = 1
diapsid - CORRECT ANSWER-two temporal fenestrae - reptilian lineage - di = 2
when were synapsids diversified - CORRECT ANSWER-carboniferous + Permian
periods
What is a type of synapsid and what are the two sub categories of that - CORRECT
ANSWER-therapsids - dicynodonts, cynodonts
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