Project 161: J. I. Bloch, M. T. Silcox, D. M. Boyer, E. J. Sargis. 2007. New Paleocene skeletons and the relationship of plesiadapiforms to crown-clade primates. Proceedings of the National Academy of Sciences. 104 (4):1159-1164.
Abstract
Plesiadapiforms are central to studies of the origin and evolution of primates and other euarchontan mammals (tree shrews and flying lemurs). We report results from a comprehensive cladistic analysis using cranial, postcranial, and dental evidence including data from recently discovered Paleocene plesiadapiform skeletons (Ignacius clarkforkensis sp. nov.; Dryomomys szalayi, gen. et sp. nov.), and the most plesiomorphic extant tree shrew, Ptilocercus lowii. Our results, based on the fossil record, unambiguously place plesiadapiforms with Euprimates and indicate that the divergence of Primates (sensu lato) from other euarchontans likely occurred before or just after the Cretaceous/Tertiary boundary (65 Mya), notably later than logistical model and molecular estimates. Anatomical features associated with specialized pedal grasping (including a nail on the hallux) and a petrosal bulla likely evolved in the common ancestor of Plesiadapoidea and Euprimates (Euprimateformes) by 62 Mya in either Asia or North America. Our results are consistent with those from recent molecular analyses that group Dermoptera with Scandentia. We find no evidence to support the hypothesis that any plesiadapiforms were mitten-gliders or closely related to Dermoptera.Read the article »
Project DOI: 10.7934/P161, http://dx.doi.org/10.7934/P161
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 2642 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 173 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 398 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:173/0 |
Currently Viewing:
MorphoBank Project 161
MorphoBank Project 161
- Creation Date:
01 October 2007 - Publication Date:
01 October 2007 - Project views: 30299
- Media downloads: 4
- Matrix downloads: 35
This research
supported by
Authors' Institutions
- University of Florida
- Yale University
- University of Winnipeg
- Stony Brook University
Members
member name | taxa | specimens | media | media notes | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||||||
Jonathan Bloch Project Administrator | 21 | 0 | 0 | 0 | 173 | 25 | 0 | 0 | 2642 (2642, 0, 0) | 0 | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M439' (21 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Asioryctes Last Modified in 12/05/13 | 49 | 124 | 124 | 0 | 0 | 0 | 0 | 1 |
[2] Purgatorius Last Modified in 12/05/13 | 97 | 84 | 76 | 0 | 0 | 0 | 0 | 1 |
[3] Palaechthon Last Modified in 12/05/13 | 87 | 97 | 86 | 0 | 0 | 0 | 0 | 1 |
[4] Paromomyidae Last Modified in 12/05/13 | 7 | 173 | 166 | 0 | 0 | 0 | 0 | 1 |
[5] Chronolestes Last Modified in 12/05/13 | 91 | 83 | 82 | 0 | 0 | 0 | 0 | 1 |
[6] Carpolestidae Last Modified in 12/05/13 | 9 | 164 | 164 | 0 | 0 | 0 | 0 | 1 |
[7] Plesiadapidae Last Modified in 12/05/13 | 4 | 179 | 169 | 0 | 0 | 0 | 0 | 1 |
[8] Saxonellidae Last Modified in 12/05/13 | 93 | 87 | 80 | 0 | 0 | 0 | 0 | 1 |
[9] Microsyopidae Last Modified in 12/05/13 | 55 | 119 | 118 | 0 | 0 | 0 | 0 | 1 |
[10] Micromomyidae Last Modified in 12/05/13 | 16 | 162 | 157 | 0 | 0 | 0 | 0 | 1 |
[11] Altiatlasius Last Modified in 12/05/13 | 140 | 35 | 33 | 0 | 0 | 0 | 0 | 1 |
[12] Altanius Last Modified in 12/05/13 | 103 | 70 | 70 | 0 | 0 | 0 | 0 | 1 |
[13] Omomyidae Last Modified in 12/05/13 | 22 | 156 | 151 | 0 | 0 | 0 | 0 | 1 |
[14] Adapidae Last Modified in 12/05/13 | 3 | 180 | 170 | 0 | 0 | 0 | 0 | 1 |
[15] Elpidophorus Last Modified in 12/05/13 | 100 | 77 | 73 | 0 | 0 | 0 | 0 | 1 |
[16] Plagiomene Last Modified in 12/05/13 | 81 | 92 | 92 | 0 | 0 | 0 | 0 | 1 |
[17] Cynocephalidae Last Modified in 12/05/13 | 2 | 175 | 171 | 0 | 0 | 0 | 0 | 1 |
[18] Ptilocercus Last Modified in 12/05/13 | 4 | 171 | 169 | 0 | 0 | 0 | 0 | 1 |
[19] Tupaia Last Modified in 12/05/13 | 3 | 173 | 170 | 0 | 0 | 0 | 0 | 1 |
[20] Chiroptera Last Modified in 12/05/13 | 2 | 173 | 171 | 0 | 0 | 0 | 0 | 1 |
[21] Berruvius Last Modified in 12/05/13 | 108 | 68 | 65 | 0 | 0 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 30299 | |
Project overview | 3953 | |
Matrix views | 2289 | Matrix landing page (1956 views); Bloch et al. 2007 Matrix (333 views); |
Media views | 6425 | Media search (5126 views); M85694 (1299 views); |
Taxon list | 13061 | |
Specimen list | 3301 | |
Bibliography | 1266 | |
Documents list | 4 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 380 | |
Matrix downloads | 35 | Bloch et al. 2007 Matrix (35 downloads); |
Project downloads | 341 | |
Media downloads | 4 | M85694 (4 downloads); |