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| Title: |
The systematic arrangement of the order Perissodactyla |
| Author(s): |
Cope, E.D. |
| Year published: |
1881 |
| Journal: |
Proceedings of the American Philosophical Society |
| Volume: |
19 |
| Pages: |
377-401, figs. 1-2, tables 1-3 |
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| File: |
View PDF: 650,9 kb |
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Location:
Subject:
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World
Taxonomy - Evolution
All Rhino Species
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| There is a graduated series, with successive modifications of four parts of the skeleton:
1. reduction of the number of toes on anterior foot
2. reduction in the number and development of the canine and incisor teeth
3. degree of closure of the meatus auditorius externus below
4. development ... |
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Location:
Subject:
Species:
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World
Taxonomy
All Rhino Species
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| Rhinoceridae |
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Location:
Subject:
Species:
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World
Taxonomy
All Rhino Species
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| Key to genera
1. Four anterior digits;
incisors 2/1, canine 0/1, no horn, posttympanic bone distinct = Aceratherium.
2. Three anterior digits
a. Posttympanic process not co?ssified with postglenoid
Incisors 2/1, canines 0/1, no dermal horn = Coenopus
Incisors 1/1, canines 0/... |
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The systematic arrangement of the order Perissodactyla
Categories and original text of this Reference:
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