Dino mid 1 (1)

Dino mid 1
Fossil - 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