INSTRUCTION: - Answer the question properly - Discuss your answer - Do not copy in Google or here in Bartleby. Construct your own answer. Figure 1: The phylogenetic tree of the Mysticeti. QUESTION: 1. List tree synapomorphies shared by extant filter-feeding whales.

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Chapter16: Evidence Of Evolution
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INSTRUCTION:

- Answer the question properly

- Discuss your answer

- Do not copy in Google or here in Bartleby. Construct your own answer.

Figure 1: The phylogenetic tree of the Mysticeti.

QUESTION:

1. List tree synapomorphies shared by extant filter-feeding whales.

(not to scale)
Pleist.
Pliocene
Miocene
Oligocene
Eocene
1.8
5.3
Late
11.6
Middle
15.9
Early
23.0-
Late
0
28.0-
Early
Late
34.0-
▬▬▬▬▬
38.0-
Middle
Early
48.6
55.85
Hippopotamus
!
Georgiacetus!
E
Zygorhiza
Odontoceti,
ChMTM®
99(9)
100(35)
macrophagy
(teeth only)
Sana
Janjucetus*
Mammalodon
bulk filter-
feeding
(teeth/baleen)
Chonecetus
Actiocetus
Eomysticetus
57(2)
76(4)
(1)
broad-based rostrum
bulk filter-feeding (baleen only)
Diorocetus
Caperea
92(5)
Pelocetus
100(13)
Eubalaena:
63(4)-
small body size
foreshortened rostrum
fibrocartilaginous mandibular symphysis
94(8)
large body size
edentulous rostrum
baleen
elongated and flattened rostrum
Eschrichtius D
Balaenoptera
54(3)
Transcribed Image Text:(not to scale) Pleist. Pliocene Miocene Oligocene Eocene 1.8 5.3 Late 11.6 Middle 15.9 Early 23.0- Late 0 28.0- Early Late 34.0- ▬▬▬▬▬ 38.0- Middle Early 48.6 55.85 Hippopotamus ! Georgiacetus! E Zygorhiza Odontoceti, ChMTM® 99(9) 100(35) macrophagy (teeth only) Sana Janjucetus* Mammalodon bulk filter- feeding (teeth/baleen) Chonecetus Actiocetus Eomysticetus 57(2) 76(4) (1) broad-based rostrum bulk filter-feeding (baleen only) Diorocetus Caperea 92(5) Pelocetus 100(13) Eubalaena: 63(4)- small body size foreshortened rostrum fibrocartilaginous mandibular symphysis 94(8) large body size edentulous rostrum baleen elongated and flattened rostrum Eschrichtius D Balaenoptera 54(3)
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