Boyer diss 2009 1046..

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(and illustrated) additional features of P. tricuspidens that they argue are similarities with many modern primates. These include a carotid canal supported by a dome-like, ventrolaterally-projecting outgrowth from the petrosal that shields the cochlear fenestra (referred to as the “posterior septum” [ps] later on), and a ridge that projects from the roof of the tympanic cavity and extends posteromedially from the promontorium, holding the vestibular aqueduct. Kay et al. (1992) described another (then) newly discovered paromomyid Ignacius graybullianus (USNM 421608) and compared its morphology to that of P. tricuspidens, among other taxa. They claimed to reinterpret the foramen rotundum identified by Russell (1964) in P. tricuspidens as a suboptic foramen (see Bloch and Silcox, 2006 and below, for more detailed discussion). Bloch and Silcox (2001) described additional specimens of Ignacius graybullianus and redescribed USNM 421608. They compared these specimens to plesiadapids and specifically illustrated and discussed morphology of a previously unpublished specimen of Plesiadapis cookei (UM 87990). The morphology of the broken open tympanic cavity is shown in their figure 7. They noted (but the figure does not obviously show), a groove for an internal carotid arterial branch that clearly differs from the small criss-crossing grooves for the tympanic plexus (which are visible in their figure 7). They also showed that P. cookei is similar to P. tricuspidens in having bony struts connecting the annular part of the ectotympanic to the external auditory meatus. Bloch and Silcox (2001: 192) indicated that morphology relating to the carotid canal and posterior carotid foramen is poorly known in plesiadapids and is only preserved in the Pelluoin skull of P. tricuspidens among all known plesiadapid cranial specimens. 26
Bloch and Silcox (2006) described the skull of yet another plesiadapiform, Carpolestes simpsoni, based on a number of fragmentary specimens (UM 101963, UM 82670, UM 85177, UM 82688, UM 101923, UM 86273, USNM 482354). Again, comparisons were made with plesiadapids. Although no additional figures were included, they again discussed the controversy over the identification of foramina of P. tricuspidens specimens, initiated by Kay et al. (1992). They concluded that Kay et al. (1992) miscommunicated their disagreement with Russell (1964) and their reinterpretation of the morphology. The foramen Kay et al. (1992) reinterpreted as the suboptic foramen must actually correspond to what Russell (1964) identified as the “t.d.a,” (= trou dechire anterieur: equivalent to the superior orbital fissure) based on their description of its location and morphology. This means they considered Russell’s “t.r.” (= trou rond: equivalent to the foramen rotundum) to actually correspond to a sphenorbital fissure. Bloch and Silcox (2006) then argued that Kay et al.’s (1992) reinterpretation is less plausible than Russell’s because the medial walls of the orbits are more widely separated in P. tricuspidens than in treeshrews possessing suboptic foramina, and because Russell’s “t.r.” is too ventrally and posteriorly displaced to represent a sphenorbital fissure. Finally, Gingerich and Gunnell (2005) described additional aspects of the skull of Plesiadapis cookei UM 87990. They stated that the skull, which is associated with both dentaries, is preserved in pieces, of which there is a palatal/splanchnocranial fragment, a neurocranial fragment with well-preserved auditory bullae ventrally, and a frontoparietal fragment. Their reconstruction postulates a total length of 90 mm and bizygomatic breadth of 58 mm. They considered the overall morphology as being similar to that of P. 27
Page 1 and 2:
NEW CRANIAL AND POSTCRANIAL REMAINS
Page 3 and 4: Stony Brook University The Graduate
Page 5 and 6: postcranial anatomy more accurately
Page 7 and 8: Table of Contents List of Figures .
Page 9 and 10: Zygomatic. . . . . . . . . . . . .
Page 11 and 12: Zygomatic. . . . . . . . . . . . .
Page 13 and 14: Humerus . . . . . . . . . . . . . .
Page 15 and 16: Description . . . . . . . . . . . .
Page 17 and 18: Description . . . . . . . . . . . .
Page 19 and 20: Craniodental material of Plesiadapi
Page 21 and 22: Figure 2.25. MNHN CR 965 Plesiadapi
Page 23 and 24: Figure 4.24. UM 87990 Plesiadapis c
Page 25 and 26: Table List Chapter 2 Table 2.1. Num
Page 27 and 28: Table 4.30. Caudal vertebrae measur
Page 29 and 30: CHAPTER 1: INTRODUCTION Plesiadapif
Page 31 and 32: primates, sharing many dental featu
Page 33 and 34: were acquired. Specifically, the
Page 35 and 36: of the plesiadapiform skeleton. Ext
Page 37 and 38: Gervais, M.P., 1877. Enumération d
Page 39 and 40: Szalay, F.S., 1972. Cranial morphol
Page 41 and 42: CHAPTER 2: A REEVALUATION OF CRANIA
Page 43 and 44: Information on the cranium of basal
Page 45 and 46: petrosal bulla predicts that a sutu
Page 47 and 48: History of descriptive study of ple
Page 49 and 50: Gingerich (1971) rebutted Szalay (1
Page 51 and 52: 9c, Gingerich (1976) labeled a groo
Page 53: portion of the bulla medial to the
Page 57 and 58: MATERIALS AND METHODS Material exam
Page 59 and 60: whitening, dark and light areas on
Page 61 and 62: SYSTEMATIC PALEONTOLOGY Class MAMMA
Page 63 and 64: efore meeting a large, anteroposter
Page 65 and 66: The canine is a simple, single-root
Page 67 and 68: existence and/or nature of contacts
Page 69 and 70: outlined. This includes description
Page 71 and 72: eneath it while also extending post
Page 73 and 74: y a pair of parallel grooves (Fig.
Page 75 and 76: the skull (Fig. 2.1). The length of
Page 77 and 78: margin clearly had a posteriorly pr
Page 79 and 80: groove measures about 0.29 mm in di
Page 81 and 82: 2.13: 50). The suture with the supr
Page 83 and 84: preserved (Fig. 2.15: 55). In fact,
Page 85 and 86: the posterior septum, a deeply inci
Page 87 and 88: Plesiadapis tricuspidens MNHN CR 12
Page 89 and 90: is roughly 2.8 mm long. Medial to t
Page 91 and 92: is not convoluted like many other s
Page 93 and 94: 110) and the only squamosal/alisphe
Page 95 and 96: two regions for the internal jugula
Page 97 and 98: ventral to the sinuous suture (132)
Page 99 and 100: provides measurements of these and
Page 101 and 102: of the promontorium of the Pellouin
Page 103 and 104: 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
Page 109 and 110:
it is missing from the other side o
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observations and interpretations ma
Page 113 and 114:
REFERENCES Beard, K.C., 1993. Phylo
Page 115 and 116:
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
Page 127 and 128:
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
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
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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Page 157 and 158:
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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 2.18. MNHN CR 125 Plesiadapi
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Figure 2.22. MNHN CR 965, Plesiadap
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Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Figure 2.26. Pellouin skull Plesiad
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Page 179 and 180:
Page 181 and 182:
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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
Page 211 and 212:
Methods of examination and document
Page 213 and 214:
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
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process is quite large, projecting
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vestibuli. This groove’s point of
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9: 40). The right side reveals an a
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e seen as a wedge-shaped, rugose de
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process appears as solid bone. Admi
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16) for P. tricuspidens and Rose (1
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DENTAL FUNCTIONAL MORPHOLOGY OF P.
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Lower premolar molarization As indi
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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
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Figure 3.1. Cranium of Plesiadapis
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Figure 3.3. Right maxillary teeth (
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Page 255 and 256:
Page 257 and 258:
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Figure 3.8. Fragment from right nuc
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Figure 3.9. Right promontorium of P
Page 263 and 264:
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Figure 3.12. Right dentary of Plesi
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Figure 3.14. A, Plot of relief inde
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CHAPTER 4: THE FIRST KNOWN SKELETON
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among plesiadapiforms (e.g., Szalay
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Institutional and collections abbre
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CaL - capitulum (of humerus) antero
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HSV - head shape variable = ln(DEW/
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MSD - mid-shaft dorsoventral or ant
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Ry - ray (as in “digit ray”) S-
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History of descriptive study of the
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illustrations of this material, exc
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astragalus and calcaneum was highly
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discussion of the femur indicates t
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supinator crests. He also noted tha
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that it may not even be an archonta
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unstudied material. Specifically, h
Page 297 and 298:
5321), some metapodials (MNHN R 529
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Gingerich and Gunnell (1992) publis
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prehensility they provide, is an in
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euarchontans (Fig. 1.1). Their anal
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for comparison. These include isola
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plesiadapid samples have the same m
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Organization of results Each bone i
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Bloch and Boyer (2002) and N. inter
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clavicle reflects some basic aspect
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Humerus Description.—The right an
Page 317 and 318:
epicondyle actually projects somewh
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cookei is absolutely longer than an
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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
Page 331 and 332:
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
Page 359 and 360:
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
Page 387 and 388:
Vertebral column Vertebral column d
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measurements, see caption of Fig. 4
Page 391 and 392:
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,
Page 415 and 416:
are consistent with more frequent u
Page 417 and 418:
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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Page 439 and 440:
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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Page 451 and 452:
Page 453 and 454:
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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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Page 473 and 474:
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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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Page 491 and 492:
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Page 497:
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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
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RESULTS Phylogenetic reconstruction
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Optimization of postcranial traits
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Therefore, character optimization r
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carpolestid bulla is not split into
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2008). I therefore changed the codi
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Re-coding and optimization of crani
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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
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TABLES Table 5.1. Dental characters
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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
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ostral end of the nasals) and prema
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its body size would fit predictions
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vertically-to-caudally projecting t
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More generally speaking, this disse
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Figure 6.1. CT reconstruction of Pl
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BIBLIOGRAPHY Alexander, R.M., Jayes
Page 588 and 589:
Coleman, M. N. and Boyer, D.M. 2008
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Godinot, M., Beard, K.C., 1991. Fos
Page 592 and 593:
MacPhee, R.D.E., 1981. Auditory Reg
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Savage, D.E., Russell, D.E., 1983.
Page 596 and 597:
Szalay, F.S., Drawhorn, G., 1980. E
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