Here is a list of useful sources, and we encourage you to benefit from the wealth of infornation available. We attenpted to identify all the utilized sites and resources, but if a site is not accounted for, please contact us and let us know.

Internet sites:

E-Mail An Expert 
Ask a Dinosaur Expert email: jacobson@geoserv.isgs.uiuc.edu 
Ask a Geologist email: Ask a Geologist@usgs.gov
Ask a Geologist email: ask-a-geologist@gsc.nrcan.gc.ca 
Ask an Ocean Animal Expert email: whaletimes@whaletimes.org Questions about ocean animals, not just whales. 
Ask a Plant and Pest Expert email: sellers@btny.purdue.edu From the Plant and Pest Diagnostic Laboratory at Purdue University. 
Ask a Science Expert email: mentors@npr.org From Science Friday Kids Connection by National Public Radio (NPR) 
Ask a Scientist email: Patricia.Higby@uni.edu (top 10 FAQs) 
Ask a Zookeeper email: cattales@spokane.net 

Geology Ask an Expert links  If you have more questions about fossil and rock formation visit the following sites: 
http://volcano.und.nodak.edu/vwdocs/ask_a.html
http://www.etc.bc.ca/tdebhome/int_expert.html
http://www.NRCan.gc.ca/gsc/cpdnew/askageol.html http://agcwww.bio.ns.ca/schools/classrm.html
http://walrus.wr.usgs.gov/docs/ask-a-ge.html
http://kidscience.miningco.com/msub1.htm

You could try to send an email question to the following addresses: 
Ask a Geologist askanexpert@pitsco.com 

These sites will assist you in planning extentions to the model.

http://www.enchantedlearning.com/subjects/dinosaurs/mesozoic/triassic/
http://www.geobop.com/paleozoo/Time/Mesozoic/Triassic/
http://www.azjournal.com/Petrifiedforest.htm
http://www.cbv.ns.ca/
http://dsc.discovery.com/stories/dino
http://www.cs.unc.edu/~plaisted/ce/dating.html#Carbon%2014%20dating

Other Resources: 

Daniels, Frank Petrified Wood The World of Fossilized Wood, Cones, Fern, and Cycads.  Most of the pictures were extracted from this incredible book.  It is a excellent reference guide illustrating petrified wood from all over the world representing a broad range of era.
Earth Science Geology  This is a workbook that stemmed many activites and provided a foundation of information.  It is a part of a series provided by the Globe Book Company
Illinois State Geological Survey- supplied information and a base for included activities.
Netscape will allow you to browse the following sites for information that will get you ... 
Canadian Terrain Sciences  Title page... http://sts.gsc.emr.ca/tsd.htm
Canadian Natural Resouces at http://www.NRCan.gc.ca
Geological Survey of Manitoba/Canada... http://www.NRCan.gc.ca

Fossil Types... ADD WEB-SITE
Brachiopods...(pictures/description) ADD WEB-SITE
Bryosoa Home Page... ADD WEB-SITE
Trilobite Home Page... ADD WEB-SITE

Gastropods (mollusks/Good Glaciation sites)... http://www.newcastle.edu.au/department/gl/shaun/molluscs.htm
Cephalapod... http://is.dal.ca/~ceph/TCP/index.html Honeycomb (Obulate) Tetracoral...   Geologic History... http://www.umanitoba.ca/geoscience/SERVERS/paleo.html
Earth Sciences Information Centre in Canada-
http://www.nrcan.gc.ca/ess/esic/esic_e.html
Geologic Links from Canada  http://www.cspg.org