Supplemental Internet Exercises – Chapter 8
How does paleontology differ from anthropology and archaeology?
What are the practical uses of paleontology?
Name and distinguish between three subdisciplines of paleontology.
How is it thought that amber preserves “inclusions,” those entrapped plants and animals that make it so valuable?
Where are the world’s largest amber deposits, and how was most of the amber collected from this area prior to the mid-twentieth century?
What preservational features of Nebraska’s Niobrara River Valley fossil site make it similar to Pompeii?
Using the interactive map, determine the age structure (all juveniles, all adults, mixed) of the animals uncovered in this exhibit
Supplemental Internet Exercises – Chapter 10
What types of fossils existed in the Precambrian before the Vendian?
In what types of structures are these fossil normally preserved?
select two of the images of Vendian organisms from the White Sea of Russia and provide a brief description of each that includes shape, size, and probable habit of these earliest animals.
Which phylum of animals is the only extant phylum that does not have a fossil record in the Cambrian?
What were the geological conditions in British Columbia some 540 MY ago when the Burgess Shale Fauna was preserved?
Choose two of the following organisms found in the Burgess Shale and describe their features.
Marella splendens http://www.nmnh.si.edu/paleo/shale/pmarella.htm
Olenoides serratus http://www.nmnh.si.edu/paleo/shale/polen.htm
Vauxia gracilenta http://park.org/Canada/Museum/burgessshale/sponges.html or http://www.geo.ucalgary.ca/~macrae/Burgess_Shale/
What are differences in the two current hypotheses that have accounted for the Cambrian extinctions?
Supplemental Internet Exercises – Chapter 12
Why were the Jurassic reefs so different from those that exist today?
Dr. Richard Owens coined the word “dinosaur” in 1841 from Greek derivatives. What meaning did he ascribe to these animals?
What unique fossil evidence found in the Cretaceous rocks of Mongolia first provided information about dinosaur behavior?
What discovery in 1993 has led scientists to interpret dinosaur nesting behavior as having been similar to that of some extant (living) birds?
What differences exist in the pelvis (hip) of ornithishians and saurischians that have become the basis for their separation?
Heterodontosaurus from the Lower Jurassic of South Africa is one of the earliest known ornithischians. What does this animal’s tooth (dentition) pattern indicate about its’ diet?
The ornithischians are commonly called the “bird-hipped” dinosaurs. Why is this a misnomer?
How do the characteristics of theropods differ from sauropods?
What anatomical features do saurischians and birds share?
Examine the information about fossil and living mammal groups. Which mammal group is the only extinct member of this clade?
Which of the following mammal clades reproduces by laying eggs similar to birds?
Where in the stratigraphic record are many clearly recognizable fossils belonging to both the marsupials and eutherians found?