Name ________________ Answer Sheet Fossil Lab - the Invertebrates Station 1: The Invertebrates 3. Match these invertebrates with their group: 1. Invertebrates are animals________________a backbone. Starfish A. Annelid with / without 2. Put an X in the boxes next to each animal that is an invertebrate. Ammonite B. Arthropod Trilobite C. Cnidarian Segmented Worm D. Echinoderm Coral E. Mollusk Station 2: Genus and Species 4. Genus name __________________ species name _____________________ 5. In which Epoch did it live? __________________________ 6. How long ago did it live? __________ to __________ million years ago 7. In which Era did it live? _________________________ Station 3: Acanthoscaphites 9. Acanthoscaphites lived about __________ million years ago 8. Identify Acanthoscaphites (put a X in the box) In which Period did it live? ____________ Period In which Era did it live? _______________ Era True or False 10. Acanthoscaphites was a giant ammonite over 8 feet in diameter. 11. Acanthoscaphites was a small ammonite just 3/4 inch to 2 inches in diameter. 12. Acanthoscaphites was a Cephalopod Mollusk and is related to modern Squid and Octopuses. 13. Acanthoscaphites is an excellent Index Fossil. 2 Fossil Lab - the Invertebrates Station 4: Pecten jeffersonius 15. Pecten jeffersonius lived 4 to 5 million years ago in the Early 14. Identify Pecten jeffersonius (put a X in the box) ______________ Epoch. True or False 16. Pecten jeffersonius was a bivalve mollusk and is related to clams and oysters. 17. Pecten jeffersonius is the State Fossil of Virginia. 18. Pecten jeffersonius is a living species of scallop found in abundance in the Chesapeake Bay area. 19. Pecten jeffersonius was named for Thomas Jefferson. Station 5: Brachiopods 24. How are Brachiopods different from Bivalves? 20. Identify these Brachiopods (include both Genus and species names): Genus species Genus species Genus species 21. Which of these Brachiopods is oldest (lived longest ago)? __________________ 22. In which Period did it (the oldest) live? _______________________ 23. All of these Brachiopods lived in which Era? _______________________ Station 5: Brachiopods II 25. Identify the parts of this Brachiopod. Choose from the list. Parts of a Brachiopod A. Brachial Valve (shell) B. Pedicle Valve (shell) C. Growth Lines D. Pedicle Opening Top View Side View E. Pedicle 3 Fossil Lab - the Invertebrates Station 7: Trilobites 27. Which of these Trilobites is the oldest? 26. Identify these Trilobites (write in their names and the Period in which each lived): 28. In which Period did it (the oldest) live? 29. Trilobites were abundant in the Paleozoic Era but a few species can be found in today’s oceans. Name Name Name Period Period Period True or False? Station 8: Crinoids True or False 30. Identify these Crinoids: 31. Crinoids became extinct at the end of the Paleozoic Era. 32. Crinoids include Sea Lillies and Feather Stars and are related to Starfish and Sea Urchins. Mystery Crinoid 1 Mystery Crinoid 2 Station 9: Petrified Wood 33. Petrified Wood was once made of wood but has been turned to stone (mineral). True or False? 34. Petrified Wood is not an invertebrate fossil because the tree it was made from was a plant, not an animal. True or False? 35. Petrified Wood can be legally removed from National Parks in small amounts. True or False? 36. A Petrified jellyfish is one that is Think about A. a fossil B. really scared it! 4 Fossil Lab - the Invertebrates Station 10: Drotops armatus and Drotops megalomanicus 37. Identify this Trilobite 38. This Trilobite lived in the Middle __________________ Period. Genus 39. In which ERA did it live? __________________ ERA species Station 11: Cephalopods 41. Which Ammonite lived longer ago ______________________. 40. Identify these Ammonite Cephalopods: Mystery Ammonite 1 Mystery Ammonite 2 42. In which ERA did both of these Ammonites live? _______________. True or False 43. Ammonites are extinct Cephalopods. 44. Ammonites are extinct Mollusks. name name 45. Ammonites had an External shell like the modern nautilus. Triassic - Jurassic Late Cretaceous Station 12: Ammonite Sutures 46. Based on their suture patterns, which of these are Ammonites and which are not? Put an X in the Box next to each Ammonite: Nautiloid Goniatida Ceratitida Nautiloid Goniatida Ceratitida Ammonitida Ammonitida 5 Fossil Lab - the Invertebrates Station 13: Belemnites animal 47. What are Belemnites ____________________________________________________ 48. How were Belemnites similar to Ammonites? ____________________________________________________fossil 49. How were Belemnites different from Ammonites? _______________________________________________ 50. In which Periods did Belemnites live? ____________________ and ____________________ Periods Station 14: Blastoids True or False 51. Identify this Blastoid: 52. Blastoids were plants with a hard calcium carbonate skeleton. 53. Blastoids are commonly called “Sea-Buds”. 54. Blastoids lived in the Paleozoic Era. name Station 15: Echinoids True or False 55. Identify these Echinoids: 56. Echinoids include Sea Urchins and Sand Dollars. 57. Echinoids have a hard outer shell like Brachiopods. 58. Although Echinoids date back 450 million years to the Late Ordovician Period, there are many species alive and well in today’s oceans. name name name 6 Fossil Lab - the Invertebrates Station 16: Mystery Snail True or False 59. Identify the Mystery Snail: 60. Snails are a type of Mollusk known as Cephalopods. Genus 61. Our Mystery Snail lived during the Tertiary and Quaternary Periods. think before you species answer this one! Station 17: Coral 62. Identify these Corals: 63. Which of these is the Mystery Solitary Coral? 64. Which of these is the Mystery Colonial Coral? 65. Both Mystery samples lived in the _________________ Period. 66. Both Mystery samples lived in the _________________ Era. 67. Most species of coral that lived in the Mesozoic Era are still alive today (not extinct). True or false? _________________ Station 17: Sponges 68. Identify the Mystery Sponges: True or False 69. Sponges have no muscles. 70. Sponges have no brain. 71. Sponges have no mouth. 72. Sponges have no heart. 73. Sponges have no skeleton. 74. How many times did Spongebob blow his whistle? _______________ times (watch the Spongebob Challenge) 7 Fossil Lab - the Invertebrates Station 19: Foraminifera 75. Identify these Mystery “Forams”: Mystery Foram 1 Mystery Foram 2 Mystery Foram 3 Mystery Foram 4 76. How are Foraminifera similar to the Amoeba? ___________________________________________________ ___________________________________________________________________________________. 77. How are Foraminifera different from the Amoeba? ________________________________________________ ___________________________________________________________________________________. Station 20: Burgess Shale 78. Identify these Cambrian Critters: Cambrian Critter 5 Cambrian Critter 3 Cambrian Critter 1 Cambrian Critter 4 Cambrian Critter 2 79. The Burgess Shale formation has provided important fossil evidence of life in the Middle _____________ Period. 80. Where is the Burgess Shale formation located? _________________________________________________ 81. Of the 5 Cambrian Critters in our Cambrian Challenge, which is your favorite? Explain why. _____________________ ___________________________________________________________________________. .