Ichnology is the study of traces, burrow and trails left by animals.
Prokaryotic bacteria are the world’s oldest life forms
What brought an end to the dinosaurs?
an ice house
a meteorite impact at Chixculub
the slowing of plate tectonics, resulting in less CO2 in the atmosphere
the glaciations of the Pleistocene
all of the answers are correct
The law of faunal succession means that younger life forms are always found at stratigraphically higher
levels in rocks
Please put these important steps for Life on Earth into proper chronological order.
Free oxygen in the atmosphere
The formation of an ozone layer
The rise of Eukaryotic bacteria
The rise of Prokaryotic bacteria
The Precambrian has no fossils.
The Pleistocene is characterized by major climate swings.
Most of the world’s iron deposits formed about 2.8 Ga
Sir James Dawson discovered Eozoon Canadense in 1858.
The dominant animals of the Mesozoic were dinosaurs.
Life most likely originated around hot spots on the ocean floor.
a type of dinosaur
none of the above
Please match the following terms with their best definition from the list.
A. Live in very hot waters
B. A mechanism of using chemicals for energy
C. None of the answers is correct.
D. Early predecessors to fish
E. The fossil remains of protists
F. Singular or multicellular bacteria that have a
G. Very salty water
H. Single celled eukaryotic bacteria with thick,
I. A mechanism of generating energy from
J. Single celled bacteria lacking a nucleus
K. The first multicellular eukaryotic organisms
L. Lives in warm (60*C), salt rich waters near
Oxygenation of the planet’s atmosphere is the result of bacterial activity
The action of animals with hard parts that burrow through sediments is called ‘bioturbation’
The Burgess Shale in Canada is a globally unique record of the Cambrian Explosion.
Please order these steps in chronological order:
Die in or near water
Percolation by mineral rich water
Pressure leads to lithification
Soft parts consumed by bacteria
The correct version of this word (stromatolites/strombolites/stromolites/strombolians) means "stony
A geologic range is _____.
The first and last appearance of a species.
How widespread a species was, geographically.
All of the above.
None of the above.
Please choose as many of the following as apply. An index fossil is ideally _____.
in existence for only a short period of geological time
in existence over many geological time periods
geographically restricted to a local area
A trace fossil is one that can be correlated and traced over large distances.
St. Cuthbert’s rings are parts of the stems of sea lilies.
What is the name given to colonies of bacteria that form mineralized structures:
none of the other answers is correct
Which of the following statements about banded iron formations is/are true?
BIFs involve magnetite.
BIFs involve hematite.