INSTRUCTION:- Do not copy on Google or here in Bartleby- Answer the question properly Figure 1: The phylogenetic tree of the Mysticeti.Question 1. Refer to Figure. What morphological traits does the new fossil, Janjucetus hunderi, share with the extant odontocetes? Please refer your answer on the image provided. (not to scale)Pleist.PlioceneMioceneOligoceneEocene1.85.3Late11.6Middle15.9Early23.0-Late028.0-EarlyLate34.0-▬▬▬▬▬38.0-MiddleEarly48.655.85Hippopotamus!Georgiacetus!EZygorhizaOdontoceti,ChMTM®99(9)100(35)macrophagy(teeth only)SanaJanjucetus*Mammalodonbulk filter-feeding(teeth/baleen)ChonecetusActiocetusEomysticetus57(2)76(4)(1)broad-based rostrumbulk filter-feeding (baleen only)DiorocetusCaperea92(5)Pelocetus100(13)Eubalaena:63(4)-small body sizeforeshortened rostrumfibrocartilaginous mandibular symphysis94(8)large body sizeedentulous rostrumbaleenelongated and flattened rostrumEschrichtius DBalaenoptera54(3)

This lesson will show how ancient data may be used to infer more about the ecology and evolution of…

INSTRUCTION: - Do not copy on Google or here in Bartleby - Answer the question properly Figure 1: The phylogenetic tree of the Mysticeti. Question 1. Refer to Figure. What morphological traits does the new fossil, Janjucetus hunderi, share with the extant odontocetes? Please refer your answer on the image provided.

INSTRUCTION: - Do not copy on Google or here in Bartleby - Answer the question properly Figure 1: The phylogenetic tree of the Mysticeti. Question 1. Refer to Figure. What morphological traits does the new fossil, Janjucetus hunderi, share with the extant odontocetes? Please refer your answer on the image provided.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter23: Paleobiology And Macroevolution

Section: Chapter Questions

Problem 10TYK

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bulk filter-feeding (baleen only) (not to scale) Pleist. 1.8 Pliocene 5.3 Late bulk filter- macrophagy (teeth only) feeding * (teeth/baleen) 11.6 Middle 15.9 Early 54(3) 23.0- Late 28.0- 63(4) 194(8) 76(4 T100(13) Early large body size edentulous rostrum 92(5) 34.0- baleen elongated and flattened rostrum Late 99(9) 38.0- Middle small body size foreshortened rostrum fibrocartilaginous mandibular symphysis broad-based rostrum 48.6 Early 55,8 100(35) Figure 1. The phylogenetic tree of the Mysticeti. Question 4. Discuss some of the aspects of whale feeding ecology that are revealed in their skull morphology. For instance, what features of the skull are associated with macrophagy (feeding on large prey)? What features of the skull reflect adaptations for filter feeding? Oligocene Zygorhiza CHMTM Janjucetus* Balaenoptera
bulk filter-feeding (baleen only) (not to scale) Pleist. 18 Pliocene 5.3 Late bulk filter- macrophagy (teeth only) feeding - (teeth/baleen)- 11.6 Middle 15.9 Early 54(3) 23.0- Late 28.0- 63(4)- 194(8) 100(13) 92(5) Early 76(4) large body size edentulous rostrum 34.0- baleen elongated and flattened rostrum Late 99(9) 38.0- Middle small body size foreshortened rostrum fibrocartilaginous mandibular symphysis broad-based rostrum 48.6 Early 55.8 100(35) Figure 1. The phylogenetic tree of the Mysticeti. Question 2. List three synapomorphies shared by the extant filter-feeding whales. Oligocene Miocene Zygorhiza CHMTM
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bulk filter-feeding (baleen only) (not to scale) Pleist. 1.8 Pliocene 5.3 Late bulk filter- mаcrophagy (teeth only) feeding - (teeth/baleen) 11.6 Middle 15.9 Early 54(3) 23.0- Late 28.0- 63(4)- 194(8) 100(13) 76(4)L 92(5) Early large body size ledentulous rostrum 34.0- baleen elongated and flattened rostrum Late 99(9) small body size foreshortened rostrum fibrocartilaginous mandibular symphysis 38.0- Middle broad-based rostrum 48.6 Early 55.8 100(35) Figure 1. The phylogenetic tree of the Mysticeti. Question 1. Refer to Figure 1 above. What morphological traits does the new fossil, Janjucetus hunderi, share with the extant odontocetes? Eocene Oligocene Miocene Zygorhiza
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bulk filter-feeding (baleen only) (not to scale) Pleist. 1.8 Pliocene 5.3 Late bulk filter- macrophagy (teeth only) feeding (teeth/baleen)- 11.6 Middle 15.9 Early 54(3) 23.0- Late 28.0- 63(4). J94(8) T100(13) 92(5) Early - 76(4 large body size Ledentulous rostrum 57(2)► 34.0- baleen elongated and flattened rostrum Late 99(9) small body size foreshortened rostrum fibrocartilaginous mandibular symphysis 38.0- Middle broad-based rostrum 48.6 Early 5.8 100(35) Figure 1. The phylogenetic tree of the Mysticeti. Question 3. Janjucetus hunderi was a small, toothed whale that was thought to actively hunt prey rather than filter feed. Why is it considered to be a basal mysticete rather than an odontocete? Oligocene Miocene Zygorhiza