I would like to thank you for visiting our lovely museum.  It is such a pleasure to have you with us today.  My name is Dr. Dino Sore, perfect for my line of work.  I am the museum's fossil creator.  This means that I remake fossils for the museum.  You may be asking yourself why make fossils, but there is a very simple explanation for why I do what I do, MONEY.  You see, the museum cannot possibly afford to buy new fossils all the time, I break them a lot because I am a bit clumsy.  So, instead of constantly buying new fossils, I have come up with a machine that makes us new fossils.  It really works great, I simply choose a type of fossil, and era in which it came from, and the machine makes the fossil for me.  It really is a great way to create new fossils that the museum otherwise could not afford.  The only problem is that, since I am clumsy and all, I accidentally broke the machine.  I know what you ar going to say, but it really wasn't my fault.  You see, the janitors mopped the floor last night, and it was still drying when they left.  I realized I had left my briefcase in by the machine, so I went in to retrieve it.  Well, needless to say, I slipped and knocked off the newly drying fossils off of the table.  Well, that hit the mop in the corner, left by the janitors no doubt, and the mop hit the machine and it fell over and broke into a million pieces.  Well, I don't know what to do now, I have a new fossil I have to present in a few weeks.  I called to get the machine fixed and it will be at least three weeks to fix it.  So my problem is that I can't decide which type of plant to make.  CAN YOU PLEASE HELP?  I will lose my job if I do not come up with this fossil in time.  What I need you to do is choose between a plant fossil or an shell (invertebrate) fossil.  Remember to do some research about both before you choose which one I should do.

Click on a site below to learn more about your choices for the fossils:

Plants:
http://library.thinkquest.org/J002507/html/trees.html
http://www.dmns.org/denverbasin2/fossil/plant.html
http://www.museum.vic.gov.au/prehistoric/time/plant.html

Shells:                                                                                     http://library.thinkquest.org/J002507/html/oceananimals.htm
http://www.dmns.org/denverbasin2/fossil/invertres.html
http://www.amnh.org/exhibitions/expeditions/treasure_fossil/Treasures/Ammonites/ammonite.html?sea