GEOL 207- Lab6_Excavation Stage II

Dinosaur Excavation Stage II Part I: Excavation Stage II – Caudal Region Below is “site map” image of the excavation site(s). These images, and others you will need to complete this assignment, are available at: https://sites.google.com/tamu.edu/geol- 207-dinosaur-world-ex2/home . An arrow is labeled in the top right corner of your image indicating the direction of North. On your site map image, each bone has been numerically labeled. 1) Identify and Catalog the Bones: Use Table 2 below to catalog the bones recovered during the excavation. For each numbered bone, you should identify the type of bone and the region of the body the bone is from (in this lab, all bones are from the caudal region). Under notes, provide any features present that are important sharded derived characters that could help you in your identification. You should also provide an approximate measurement for each bone marked with a * using the scale bars on the zoom- in photos available at : https://sites.google.com/tamu.edu/geol-207-dinosaur-world-ex2/home Table 2. Bone catalog for Excavation Stage II. (10 pts) Bone Number Bone Identification Skeletal Region Measurements Other Notes Length (cm) Width (cm) 22* Caudal Vertebrae caudal 40 cm 20 cm 23 Caudal Vertebrae Caudal -- -- 24 Caudal Vertebrae Caudal -- -- 25 Caudal Vertebrae Caudal -- -- 26 Caudal Vertebrae Caudal -- -- 27 Caudal Vertebrae Caudal -- -- 28 Caudal Vertebrae Caudal -- -- 29 Caudal Vertebrae Caudal -- -- 30 Caudal Vertebrae Caudal -- -- 31 Caudal Vertebrae Caudal -- -- 32 Caudal Vertebrae Caudal -- -- 33 Caudal Vertebrae Caudal -- -- 34* Caudal Vertebrae Caudal 20 cm 24 cm 35 Caudal Vertebrae caudal -- -- 36 Caudal Vertebrae caudal -- -- 37 Caudal Vertebrae caudal -- -- 38 Caudal Vertebrae caudal -- -- 39 Caudal Vertebrae caudal -- -- 40 Caudal Vertebrae caudal -- --

41* Caudal Vertebrae caudal 15 cm 20 cm 42 Caudal Vertebrae caudal -- -- 43 Caudal Vertebrae caudal -- -- 44 Caudal Vertebrae caudal -- -- 45 Caudal Vertebrae caudal -- -- 46 Caudal Vertebrae caudal -- -- 47* Caudal Vertebrae caudal 6 cm 19 cm 48* Caudal Vertebrae caudal 100 cm 18 cm End of tail 49 Chevron caudal -- -- 50* Chevron caudal 4 cm 30 cm 51 Chevron caudal -- -- 52 Chevron caudal -- -- 53 Chevron caudal -- -- 54 Chevron caudal -- -- 55 Chevron caudal -- -- 56 Chevron caudal -- -- 57 Chevron caudal -- -- 58 Chevron caudal -- -- 59 Chevron caudal -- -- 60* Chevron caudal 13 cm 9 cm 61 Chevron caudal -- -- 62 Chevron caudal -- -- 63 Chevron caudal -- -- 63 Chevron caudal -- -- 65 Chevron caudal -- -- 66 Chevron caudal -- -- 67 Chevron caudal -- -- 68 Chevron caudal -- -- 69 Chevron caudal -- -- 70 Chevron caudal -- -- 71 Chevron caudal -- -- 72 Chevron caudal -- -- 73 Chevron caudal -- -- 74 Chevron caudal -- -- 75* Chevron caudal 8 cm 8 cm 2) Interpret the Skeleton (5 pts) a) What is the approximate total length of the tail? Be sure to use the scale bars in the images determine the length. (1 pt) - The total length of the tail is approximately 3.5 meters.