Quiz Flashcards
is a record of
the life forms and geological events in
Earth’s history.
Geologic timescale
helped determine the
absolute divisions in the time scale
Radioactive dating
Lived in Earth’s ancient seas
Extinct before the dinosaurs came into existence
Trilobites
Cambrian Period is known as the
Age of the trilobites
Marine animals that resemble
bivalves such as clams.
Brachiopods
This shark was considered a “living fossil
Frilled shark
Flowering plants evolved
towards the end of the
Mesozoic era
Today we are in the
_ of the
of _
the _
Holocene Epoch, Quaternary Period, Cenozoic Era
TYPES OF FOSSIL
- Mold
- Cast
- Trace
- True-form
THE SIX WAYS OF
FOSSILIZATION
- Unaltered preservation
- Permineralization/ Petrification
- Replacement
- Carbonization or Coalification
- Recrystalization
- Authigenic preservation
DATING FOSSILS
- RELATIVE DATING
- ABSOLUTE DATING
rules of Relative Dating
A. LAW OF SUPERPOSITION
B. LAW OF ORIGINAL HORIZONTALITY
C. LAW OF CROSS-CUTTING
RELATIONSHIPS
two methods used
to create fossils
- Imprint
- 3-D Object (Cast)
Taxa means
Classifying organism
Identify ancestor
Paleontology
Related to evolution
Embryology
Morphology
Anatomy
Molecular biology
Study of relationship between taxa and shared derived characters
Cladistic
Type of trees
Cladogram
Phylogram
Ultrametric tree
Type of tree-no meaning- ancestor
Cladogram
Type of tree-genetic change- cladogram with branch lengths
Phylogram
Type of tree-time-dendrogram
Ultrametric tree
Classification+nomenclature
Taxonomy
