Boyer diss 2009 1046..

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appears to be a pronated one. This problem is compounded in discussions of articulations of the radius with the humerus and ulna. Even disregarding the problem of establishing the anterior surface of the radius, using “mediolateral” terminology is confusing because the axis of the radius shaft exhibits torsion (see Radius description). Therefore, the mediolateral axis of the proximal end nearly corresponds to the dorsopalmar axis of the distal end. Human/primate carpal terminology is used because of the relevance of plesiadapiforms to studies by anthropologists. Furthermore, use of this terminology follows previous treatments of the Plesiadapidae (Beard, 1993a). The terms “superior” and “inferior” are considered equivalent to “cranial” and “caudal” for the clavicle, scapula, innominate, and sacrum in contrast to what is generally considered appropriate for anatomy of quadrupedal animals (Nomina Anatomica Veterinaria, 1994). This is done to permit use of detailed anatomical references such as “supraspinus fossa,” “infraglenoid tuberosity,” and “anterior superior iliac spine” (Nomina Anatomica, 1983). Furthermore, use of this terminology follows that in recent treatments of other euarchontan mammals (e.g., Sargis, 2002a, b). In discussions of cervical, trunk, and sacral vertebrae, “craniocaudal” terminology is used as specified in the Nomina Anatomica Verterinaria (1994) and as done in recent treatments of other euarchontan mammals (Sargis, 2001). However, for caudal vertebrae, I deviate from this format in order to avoid confusing references to “caudal caudal vertebrae.” Instead, I use “proximodistal” terminology here. 244
Institutional and collections abbreviations AMNH, American Museum of Natural History, New York; HTB, Cleveland Museum of Natural History, Hamann-Todd non-human primate osteological collection, Cleveland; L.Q., Les Quesnoy Quarry; MNHN, Muséum Nationale d’Histoire Naturelle, Paris; SMM, Science Museum of Minnesota, St. Paul; SBU, Stony Brook University, Stony Brook; UALVP, University of Alberta Laboratory for Vertebrate Paleontology, Edmonton; UM, University of Michigan Museum of Paleontology, Ann Arbor; UMMZ, University of Michigan Museum of Zoology, Ann Arbor; USNM, United States National Museum of Natural History, Smithsonian Institution, Washington D.C.; VPL/JU/NKIM – Vertebrate Paleontology Laboratory, University of Jammu, Jammu Tawi, India; YPM- PU, Yale Peabody Museum-Princeton University collection, New Haven. Generic abbreviations P. - Plesiadapis Pr. – Pronothodectes Pl. – Platychoerops N. – Nannodectes Other abbreviations AcD - acetabulum (of innominate) anteroposterior depth (Sargis, 2002b: measurement 5) AcL - acetabulum (of innominate) superoinferior length (Sargis, 2002b: measurement 4) AcV - anticlinal vertebral position: first thoracic = 1, last lumbar = number of thoracic vertebrae + number of lumbar vertebrae 245
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NEW CRANIAL AND POSTCRANIAL REMAINS
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Stony Brook University The Graduate
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postcranial anatomy more accurately
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Table of Contents List of Figures .
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Zygomatic. . . . . . . . . . . . .
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Zygomatic. . . . . . . . . . . . .
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Humerus . . . . . . . . . . . . . .
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Description . . . . . . . . . . . .
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Description . . . . . . . . . . . .
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Craniodental material of Plesiadapi
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Figure 2.25. MNHN CR 965 Plesiadapi
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Figure 4.24. UM 87990 Plesiadapis c
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Table List Chapter 2 Table 2.1. Num
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Table 4.30. Caudal vertebrae measur
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CHAPTER 1: INTRODUCTION Plesiadapif
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primates, sharing many dental featu
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were acquired. Specifically, the
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of the plesiadapiform skeleton. Ext
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Gervais, M.P., 1877. Enumération d
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Szalay, F.S., 1972. Cranial morphol
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CHAPTER 2: A REEVALUATION OF CRANIA
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Information on the cranium of basal
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petrosal bulla predicts that a sutu
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History of descriptive study of ple
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Gingerich (1971) rebutted Szalay (1
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9c, Gingerich (1976) labeled a groo
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portion of the bulla medial to the
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Bloch and Silcox (2006) described t
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MATERIALS AND METHODS Material exam
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whitening, dark and light areas on
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SYSTEMATIC PALEONTOLOGY Class MAMMA
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efore meeting a large, anteroposter
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The canine is a simple, single-root
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existence and/or nature of contacts
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outlined. This includes description
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eneath it while also extending post
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y a pair of parallel grooves (Fig.
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the skull (Fig. 2.1). The length of
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margin clearly had a posteriorly pr
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groove measures about 0.29 mm in di
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2.13: 50). The suture with the supr
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preserved (Fig. 2.15: 55). In fact,
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the posterior septum, a deeply inci
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Plesiadapis tricuspidens MNHN CR 12
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is roughly 2.8 mm long. Medial to t
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is not convoluted like many other s
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110) and the only squamosal/alisphe
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two regions for the internal jugula
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ventral to the sinuous suture (132)
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provides measurements of these and
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of the promontorium of the Pellouin
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seen on the HRxCT scan is expressed
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primates, as well as treeshrews and
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canaliculus are present on the sept
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it is missing from the other side o
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observations and interpretations ma
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REFERENCES Beard, K.C., 1993. Phylo
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Russell, D.E., 1959. Le crâne de P
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TABLES Table 2.1. Numerical list of
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81 - Occipital/petrosal suture (Fig
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Table 2.2. Abbreviations for crania
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Table 2.3a. Petrosal features of pl
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Table 2.4. List of cranial measurem
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Shape variables (Table 2.6) ac/GM -
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Table 2.5. continued Specimen MNHN
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Appendix Table 2.1. Specimens scann
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Fig. 2.39 - bs, Ptr, rtp, s1, s2 Fi
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Figure 2.1. UALVP 46685 Pronothodec
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Figure 2.8. USNM 309902 Nannodectes
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Figure 2.9. USNM 309902 Nannodectes
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Figure 2.10. USNM 309902 Nannodecte
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Figure 2.15. AMNH 17388 Nannodectes
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Figure 2.16. AMNH 17388 Nannodectes
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Figure 2.22. MNHN CR 965, Plesiadap
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Figure 2.26. Pellouin skull Plesiad
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Figure 2.30. MaPhQ 33y Adapis paris
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Figure 2.32. SBU MRd-12 Sciurus car
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Figure 2.33. UMMZ 58983 Tupaia glis
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Figure 2.34. Boyer coll. Marmota mo
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Figure 2.35. UMMZ TS13 Lagostomus m
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Figure 2.36. AMNH 41527 Lagostomus
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Figure 2.37. AMNH 185638 Indri indr
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Figure 2.38. USNM 482353 Ignacius c
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Figure 2.39. UM 108207 Acidomomys h
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Figure 2.40. Reconstruction of ples
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CHAPTER 3: DESCRIPTION OF THE FIRST
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these species. Changing ecological
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Institutional abbreviations AMNH, A
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Methods of examination and document
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SYSTEMATIC PALEONTOLOGY Class MAMMA
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Premaxilla and premaxillary dentiti
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nerve and vessels in life (Fig. 3.5
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identifiable. No ethmoid foramina c
Page 221 and 222: process is quite large, projecting
Page 223 and 224: vestibuli. This groove’s point of
Page 225 and 226: 9: 40). The right side reveals an a
Page 227 and 228: e seen as a wedge-shaped, rugose de
Page 229 and 230: process appears as solid bone. Admi
Page 231 and 232: 16) for P. tricuspidens and Rose (1
Page 233 and 234: DENTAL FUNCTIONAL MORPHOLOGY OF P.
Page 235 and 236: Lower premolar molarization As indi
Page 237 and 238: SUMMARY AND CONCLUSION The skull of
Page 239 and 240: REFERENCES Bloch, J.I., Boyer, D.M.
Page 241 and 242: TABLES Table 3.1. List of anatomica
Page 243 and 244: Table 3.2. Anatomical abbreviations
Page 245 and 246: Table 3.3. Size comparison among pl
Page 247 and 248: Table 3.4 continued. European plesi
Page 249 and 250: Figure 3.1. Cranium of Plesiadapis
Page 251 and 252: Figure 3.3. Right maxillary teeth (
Page 259 and 260: Figure 3.8. Fragment from right nuc
Page 261 and 262: Figure 3.9. Right promontorium of P
Page 265 and 266: Figure 3.12. Right dentary of Plesi
Page 267 and 268: Figure 3.14. A, Plot of relief inde
Page 269 and 270: CHAPTER 4: THE FIRST KNOWN SKELETON
Page 271: among plesiadapiforms (e.g., Szalay
Page 275 and 276: CaL - capitulum (of humerus) antero
Page 277 and 278: HSV - head shape variable = ln(DEW/
Page 279 and 280: MSD - mid-shaft dorsoventral or ant
Page 281 and 282: Ry - ray (as in “digit ray”) S-
Page 283 and 284: History of descriptive study of the
Page 285 and 286: illustrations of this material, exc
Page 287 and 288: astragalus and calcaneum was highly
Page 289 and 290: discussion of the femur indicates t
Page 291 and 292: supinator crests. He also noted tha
Page 293 and 294: that it may not even be an archonta
Page 295 and 296: unstudied material. Specifically, h
Page 297 and 298: 5321), some metapodials (MNHN R 529
Page 299 and 300: Gingerich and Gunnell (1992) publis
Page 301 and 302: prehensility they provide, is an in
Page 303 and 304: euarchontans (Fig. 1.1). Their anal
Page 305 and 306: for comparison. These include isola
Page 307 and 308: plesiadapid samples have the same m
Page 309 and 310: Organization of results Each bone i
Page 311 and 312: Bloch and Boyer (2002) and N. inter
Page 313 and 314: clavicle reflects some basic aspect
Page 315 and 316: Humerus Description.—The right an
Page 317 and 318: epicondyle actually projects somewh
Page 319 and 320: cookei is absolutely longer than an
Page 321 and 322: tuberosity. This crest probably del
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olecranon process to estimate its t
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distinct, convex distal radial face
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of the midcarpal joint), and its pr
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(there is no evidence for more than
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matches the opposing facet on the t
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mobility at the trapezoid-trapezium
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Function.—The three proximal carp
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the bone presently being described:
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the “set 2” MC II is a larger,
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differs from MC II and III in havin
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even more pronounced. The distal en
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etween the distal carpals and the
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have stouter shaft diameters for th
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difference makes them more like kno
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antipronograde clinging postures, o
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foramina, and faces slightly proxim
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spine at the superior tip of the il
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the thigh (Gambaryan, 1974). The ha
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The femoral shaft is smooth, lackin
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lacking a lateral extension of its
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The anteromedial side of the tibial
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fibular notch and the strong crest
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to the peroneal surface. The perone
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could even be described as having t
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Function.—The functional features
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flexor fibularis groove surface. Ex
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tubercle, which is centrally locate
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Cuboid Description.—The right cub
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Ectocuneiform Description.—A left
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Metatarsals Hallucal metatarsal des
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articulation with the entocuneiform
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medial side facet on MT IV from a v
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Vertebral column Vertebral column d
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measurements, see caption of Fig. 4
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transverse processes, and the poste
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taxa appear to have slightly more p
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dorsoventrally than craniocaudally.
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The zygapophyses increase in size b
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vertebrae. It is also similar to th
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identifications have been reversed.
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preserved. The ribs are slender and
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Carpolestes simpsoni (UM 101963) an
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third metacarpal, similar to arbore
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autapomorphy, because it appears th
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Jenkins (1974) found that Tupaia gl
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Nannodectes and other plesiadapids,
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are consistent with more frequent u
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differences generated from informat
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Perry, M. Silcox, R. Secord and man
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ubriventer: implications for the fu
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Linnaeus, C., 1758. Systema naturae
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Stern, J.T.,Jr., 1988. Essentials o
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Table 4.3A. Measurements of the pro
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Table 4.3C. Comparative shape varia
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Table 4.5A. Measurements and shape
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Table 4.10. Measurements and shape
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Table 4.13. Measurements of plesiad
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Table 4.17B. Measurements of the di
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Table 4.18B. Measurements of the di
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Table 4.20B. Measurements 11-18 of
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Table 4.21A. Measurements 1-10 and
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Table 4.23. Measurements and shape
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Table 4.35. Body segment lengths (m
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Table 4.37A. Parameters for Gingeri
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Table 4.38C. Summary of plesiadapid
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Appendix Table 4.1B. Plesiadapis co
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Appendix Table 4.3. Other plesiadap
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Figure 4.2. Plesiadapis cookei (UM
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Figure 4.4. Plot of principal coord
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Figure 4.6. Surface reconstructions
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Figure 4.10. Surface reconstruction
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Figure 4.14. Plesiadapis cookei or
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Figure 4.17. Plot of principal coor
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Figure 4.30 472
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Figure 4.31. Measurements of astrag
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Figure 4.33 476
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Figure 4.34. Measurements of calcan
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Figure 4.40. Stereophotographic vie
Page 514 and 515:
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Figure 4.46. 490
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Figure 4.47 492
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Figure 4.50. 496
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INTRODUCTION Bloch et al. (2007) an
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have a lacrimal bone that retains i
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Institutional abbreviations AMNH, A
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level cladogram. A total of 33 cran
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plesiadapiform Ignacius graybullian
Page 538 and 539:
RESULTS Phylogenetic reconstruction
Page 540 and 541:
Optimization of postcranial traits
Page 542 and 543:
Therefore, character optimization r
Page 544 and 545:
carpolestid bulla is not split into
Page 546 and 547:
2008). I therefore changed the codi
Page 548 and 549:
Re-coding and optimization of crani
Page 550 and 551:
and paromomyids. This, however, is
Page 552 and 553:
REFERENCES Beard, K.C., 1989. Postc
Page 554 and 555:
Novacek, M.J., 1986. The skull of l
Page 556 and 557:
TABLES Table 5.1. Dental characters
Page 558 and 559:
Table 5.2. Dental character matrix.
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asisphenoid and basioccipital bones
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111 (p3). Deltopectoral crest of hu
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158 (p50). Metatarsal I facet on en
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Table 5.4C. Postcranial characters
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Table 5.7. Posterior carotid forame
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Figure 5.2. 542
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Figure 5.3 544
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Figure 5.4. Plot of posterior carot
Page 576 and 577:
ostral end of the nasals) and prema
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its body size would fit predictions
Page 580 and 581:
vertically-to-caudally projecting t
Page 582 and 583:
More generally speaking, this disse
Page 584 and 585:
Figure 6.1. CT reconstruction of Pl
Page 586 and 587:
BIBLIOGRAPHY Alexander, R.M., Jayes
Page 588 and 589:
Coleman, M. N. and Boyer, D.M. 2008
Page 590 and 591:
Godinot, M., Beard, K.C., 1991. Fos
Page 592 and 593:
MacPhee, R.D.E., 1981. Auditory Reg
Page 594 and 595:
Savage, D.E., Russell, D.E., 1983.
Page 596 and 597:
Szalay, F.S., Drawhorn, G., 1980. E
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