Unknown Crown Height (mm) Anterior Posterior Length HI Fossil # (mm) (actual crown conversion conversion height/actual measured actual factor measured factor actual APL) 1 x _____ x _____ 2 x _____ x _____ 3 x _____ x _____ 4 x _____ x _____ 5 x _____ x _____ 6 x _____ x _____ Based on your measurements determine if these fossils are from the same species or different species? Justify your answer. Calculate the average HI index of all 6 teeth. Record in the data chart above. Using the data you collected yesterday identify what species the teeth came from. Explain how you arrived at your conclusion. Part II Examine the top surface of the fossils. Draw what you see in the boxes below. Use the Horse Tooth Variation Guide below to assist you in identifying structures commonly used by vertebrate paleontologists. For each tooth write whether the protocone is connected, isolated, or somewhere in between and whether the plications are complex, simple, or intermediate. Image adapted from The Pony Express Florida Fossil Horse Newsletter, Volume 1, Number 3, 3rd Quarter--September 1992
Unknown Fossil # Crown Height (mm) Anterior Posterior Length (mm) HI (actual crown height/actual APL) measured conversion factor actual measured conversion factor actual 1 x _____ x _____ 2 x _____ x _____ 3 x _____ x _____ 4 x _____ x _____ 5 x _____ x _____ 6 x _____ x _____ Based on your measurements determine if these fossils are from the same species or different species? Justify your answer. Calculate the average HI index of all 6 teeth. Record in the data chart above. Using the data you collected yesterday identify what species the teeth came from. Explain how you arrived at your conclusion. Part II Examine the top surface of the fossils. Draw what you see in the boxes below. Use the Horse Tooth Variation Guide below to assist you in identifying structures commonly used by vertebrate paleontologists. For each tooth write whether the protocone is connected, isolated, or somewhere in between and whether the plications are complex, simple, or intermediate. Image adapted from The Pony Express Florida Fossil Horse Newsletter, Volume 1, Number 3, 3rd Quarter--September 1992
Horse-Evolution-Lessons-final-9_11_2014.docx