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The Origin and Evolution of Mammals - Moodle

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Mioclaenus<br />

Paulacoutoia<br />

(didolodontid)<br />

Prolitopterna<br />

Prolicaphrium<br />

(litoptern)<br />

Mixotoxodon<br />

Argyrohippus<br />

Astrapotherium<br />

Pyrotherium<br />

Carodnia<br />

(xenungulate)<br />

Nesodon<br />

Leontinia<br />

(f)<br />

(a)<br />

(b)<br />

(c)<br />

(d)<br />

(e)<br />

Isotemnus<br />

Henricosbornia<br />

(g)<br />

(h)<br />

Notopithecus<br />

Miocochilius<br />

Propachyrucos<br />

Trachytherus<br />

Figure 7.10 Meridungulate dentions in occlusal views. (a) Mioclaenid (Mioclaenus). (b) Didolodontid (Paulacoutoia). (c) Plesiomorphic<br />

litoptern (Prolitopterna). (d) Litoptern (Prolicaphrium). (e) Upper <strong>and</strong> lower molar <strong>of</strong> Astrapotherium in occlusal view. (f) Molar tooth diversity in<br />

notoungulates. (g) Upper <strong>and</strong> lower molars <strong>of</strong> Pyrotherium. (h) Upper <strong>and</strong> lower molars <strong>of</strong> the xenungulate Carodnia (a) after Archibald 1998 after<br />

Matthew 1937. Others Cifelli 1993).

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