Smithsonian Miscellaneous Collections

Smithsonian Institution, 1968

INTRODUCTION	1

Variation in zooecial length and width and occurrence of avicu	7

Zooecial Characters	8

Heterozooecial Characters	14

Distribution position and orientation of ordinary avicularia	16

Quantitative Characters	23

13	29

TAXONOMY	33

Geographic and geologic occurrence 12	12

Classification 13	13

Parallel evolution in oral denticulation	24

Environment 31	31

The skeleton of Hyopsodus 34	34

Endocranial cast 40	40

Mandible 43	43

Dentition 44	44

Means of the first two principal components zooecial size	36

ORIGIN AND EVOLUTION	48

REPOSITORIES	57

R micropora micropora Gabb and Horn 1862	70

Rhabdotometra vigneauxi n	76

B tenue auriculatum Canu and Bassler 1923	83

Subgenus Metrarabdotos Uniavicularium n subgen	89

U unguiculatum cookae n subsp	95

Porometra maleckii n	104

Unnamed Superfamily	110

Phylogenetic relationships in the subgenus M Rhabdotometra	16

Phylogenetic relationships of the five subgenera of Metrarab	20

CONTENTS Page

Introduction	1

Acknowledgments 2	2

History of investigation 3	3

Vertebrae 52	52

Pectoral girdle 54	54

Humerus 55	55

Radius 56	56

Ulna 57	57

Manus 58	58

Pelvic girdle 63	63

Femur 64	64

Tibia 65	65

Fibula 66	66

Pes 67	67

Summary of relationships 73	73

REFERENCES	76

Explanation of plates 83	83

Explanation of abbreviations for plates 90

Titre	Smithsonian Miscellaneous Collections Publication (Smithsonian Institution) Smithsonian Miscellaneous Collections, Smithsonian Institution Smithsonian publication
Collaborateur	Smithsonian Institution
Éditeur	Smithsonian Institution, 1968
Original provenant de	Université de Columbia
Numérisé	2 janv. 2018

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