Project 3264: S. López-Torres, M. T. Silcox, P. A. Holroyd. 2018. New omomyoids (Euprimates, Mammalia) from the late Uintan of southern California, USA, and the question of the extinction of the Paromomyidae (Plesiadapiformes, Primates). Palaeontologia Electronica. 21.3:21.3.37A.
Abstract
Paromomyidae has been thought to represent the longest-lived group of stem primates (plesiadapiforms), extending from the early Paleocene to late Eocene. We analyzed primate material from the late-middle Eocene of southern California that had initially been ascribed to cf. Phenacolemur shifrae. This material falls at the lowest end of the size range for the family. The Californian specimens also exhibit several dental features that are atypical for paromomyids, such as a strong paraconid on the third lower molar, and differ from early Eocene species of Phenacolemur in lacking a distally expanded distolingual basin on upper molars. This combination of traits is more typical of earlier paromomyids with more plesiomorphic morphologies (e.g., Paromomys) and as such is inconsistent with the late age of these specimens. The purported paromomyids Ph. shifrae and Ignacius mcgrewi known in deposits of similar age are comparably tiny and share many of the characteristics found in the southern California material that distinguish them from typical early Eocene paromomyids. However, these traits are shared with some trogolemurin omomyoid euprimates that are of similar size. We argue that the material from southern California, along with Ph. shifrae and I. mcgrewi, should be transferred to a new genus of trogolemurin omomyoid. Purported European records of paromomyids later than the earliest middle Eocene are reconsidered and found to be non-diagnostic. After the early middle Eocene, only a single tooth of a paromomyid can be confirmed, indicating that the group suffered near extinction, possibly correlated with the Early Eocene Climatic Optimum.Read the article »
Article DOI: 10.26879/756
Project DOI: 10.7934/P3264, http://dx.doi.org/10.7934/P3264
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 11985 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 303 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 827 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:303/0 |
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MorphoBank Project 3264
MorphoBank Project 3264
- Creation Date:
20 September 2018 - Publication Date:
17 January 2019 - Project views: 17259
- Media downloads: 1
- Matrix downloads: 28
Authors' Institutions
- University of California Berkeley
- University of Toronto
- Polish Academy of Sciences
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Sergi López-Torres Project Administrator | 1 | 1 | 1 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M27157' (66 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Scandentia Last Modified in 12/28/20 | 3 | 309 | 292 | 0 | 8 | 0 | 0 | 1 |
[2] Plesiadapis/Pronothodectes Last Modified in 12/28/20 | 23 | 260 | 258 | 0 | 22 | 0 | 0 | 1 |
[3] Purgatorius spp Last Modified in 12/28/20 | 154 | 148 | 148 | 0 | 1 | 0 | 0 | 1 |
[4] Plesiolestes problematicus Last Modified in 12/28/20 | 126 | 175 | 174 | 0 | 3 | 0 | 0 | 1 |
[5] Chronolestes simul Last Modified in 12/28/20 | 112 | 186 | 186 | 0 | 5 | 0 | 0 | 1 |
[6] Adapis parisiensis Last Modified in 12/28/20 | 19 | 281 | 279 | 0 | 5 | 0 | 0 | 1 |
[7] Notharctus sp. Last Modified in 12/28/20 | 49 | 283 | 253 | 0 | 1 | 0 | 0 | 1 |
[8] Donrussellia sp. Last Modified in 12/28/20 | 154 | 155 | 148 | 0 | 1 | 0 | 0 | 1 |
[9] Leptadapis magnus Last Modified in 12/28/20 | 79 | 221 | 220 | 0 | 4 | 0 | 0 | 1 |
[10] Mahgarita stevensi Last Modified in 12/28/20 | 95 | 201 | 198 | 0 | 10 | 0 | 0 | 1 |
[11] Pronycticebus gaudryi Last Modified in 12/28/20 | 112 | 190 | 189 | 0 | 2 | 0 | 0 | 1 |
[12] Galagoides demidoff Last Modified in 12/28/20 | 5 | 286 | 286 | 0 | 12 | 0 | 0 | 1 |
[13] Lemur catta Last Modified in 12/28/20 | 2 | 289 | 289 | 0 | 12 | 0 | 0 | 1 |
[14] Microcebus murinus Last Modified in 12/28/20 | 4 | 282 | 282 | 0 | 17 | 0 | 0 | 1 |
[15] Absarokius sp. Last Modified in 12/28/20 | 126 | 182 | 172 | 0 | 5 | 0 | 0 | 1 |
[16] Uintanius ameghini Last Modified in 12/28/20 | 147 | 158 | 153 | 0 | 3 | 0 | 0 | 1 |
[17] Anaptomorphus sp. Last Modified in 12/28/20 | 156 | 146 | 139 | 0 | 8 | 0 | 0 | 1 |
[18] Anemorhysis savagei Last Modified in 12/28/20 | 146 | 158 | 153 | 0 | 4 | 0 | 0 | 1 |
[19] Anemorhysis sublettensis Last Modified in 12/28/20 | 233 | 70 | 70 | 0 | 0 | 0 | 0 | 1 |
[20] Anemorhysis wortmani Last Modified in 12/28/20 | 207 | 90 | 90 | 0 | 6 | 0 | 0 | 1 |
[21] Anemorhysis natronensis Last Modified in 12/28/20 | 204 | 93 | 93 | 0 | 6 | 0 | 0 | 1 |
[22] Arapahovius gazini Last Modified in 12/28/20 | 115 | 196 | 186 | 0 | 2 | 0 | 0 | 1 |
[23] Aycrossia lovei Last Modified in 12/28/20 | 139 | 167 | 158 | 0 | 6 | 0 | 0 | 1 |
[24] Dyseolemur pacificus Last Modified in 12/28/20 | 121 | 183 | 180 | 0 | 2 | 0 | 0 | 1 |
[25] Washakius insignis Last Modified in 12/28/20 | 124 | 190 | 178 | 0 | 1 | 0 | 0 | 1 |
[26] Hemiacodon gracilis Last Modified in 12/28/20 | 87 | 228 | 213 | 0 | 3 | 0 | 0 | 1 |
[27] Loveina zephyri Last Modified in 12/28/20 | 156 | 154 | 145 | 0 | 2 | 0 | 0 | 1 |
[28] Loveina sheai Last Modified in 12/28/20 | 213 | 91 | 90 | 0 | 0 | 0 | 0 | 1 |
[29] Loveina minuta Last Modified in 12/28/20 | 252 | 51 | 51 | 0 | 0 | 0 | 0 | 1 |
[30] Loveina wapitiensis Last Modified in 12/28/20 | 215 | 88 | 88 | 0 | 0 | 0 | 0 | 1 |
[31] Macrotarsius montanus Last Modified in 12/28/20 | 201 | 103 | 101 | 0 | 1 | 0 | 0 | 1 |
[32] Microchoerus erinaceus Last Modified in 12/28/20 | 91 | 206 | 204 | 0 | 8 | 0 | 0 | 1 |
[33] Nannopithex sp. Last Modified in 12/28/20 | 109 | 200 | 189 | 0 | 5 | 0 | 0 | 1 |
[34] Melaneremia bryanti Last Modified in 12/28/20 | 191 | 110 | 110 | 0 | 2 | 0 | 0 | 1 |
[35] Necrolemur antiquus Last Modified in 12/28/20 | 51 | 248 | 243 | 0 | 9 | 0 | 0 | 1 |
[36] Omomys sp. Last Modified in 12/28/20 | 85 | 227 | 216 | 0 | 2 | 0 | 0 | 1 |
[37] Pseudoloris parvulus Last Modified in 12/28/20 | 125 | 175 | 172 | 0 | 6 | 0 | 0 | 1 |
[38] Rooneyia viejaensis Last Modified in 12/28/20 | 203 | 102 | 98 | 0 | 2 | 0 | 0 | 1 |
[39] Shoshonius cooperi Last Modified in 12/28/20 | 100 | 215 | 200 | 0 | 3 | 0 | 0 | 1 |
[40] Steinius vespertinus Last Modified in 12/28/20 | 148 | 162 | 153 | 0 | 2 | 0 | 0 | 1 |
[41] Teilhardina americana Last Modified in 12/28/20 | 132 | 186 | 170 | 0 | 1 | 0 | 0 | 1 |
[42] Teilhardina belgica Last Modified in 12/28/20 | 145 | 169 | 157 | 0 | 1 | 0 | 0 | 1 |
[43] Teilhardina asiatica Last Modified in 12/28/20 | 112 | 201 | 189 | 0 | 2 | 0 | 0 | 1 |
[44] Altanius orlovi Last Modified in 12/28/20 | 144 | 164 | 158 | 0 | 1 | 0 | 0 | 1 |
[45] Tetonius sp. Last Modified in 12/28/20 | 93 | 224 | 207 | 0 | 3 | 0 | 0 | 1 |
[46] Tetonoides sp. Last Modified in 12/28/20 | 151 | 165 | 149 | 0 | 3 | 0 | 0 | 1 |
[47] † Trogolemur myodes Last Modified in 12/28/20 | 147 | 153 | 150 | 0 | 6 | 0 | 0 | 1 |
[48] Trogolemur amplior Last Modified in 12/28/20 | 235 | 63 | 63 | 0 | 5 | 0 | 0 | 1 |
[49] Trogolemur fragilis Last Modified in 12/28/20 | 258 | 44 | 44 | 0 | 1 | 0 | 0 | 1 |
[50] Trogolemur leonardi Last Modified in 12/28/20 | 274 | 28 | 28 | 0 | 1 | 0 | 0 | 1 |
[51] Sphacorhysis burntforkensis Last Modified in 12/28/20 | 205 | 93 | 93 | 0 | 5 | 0 | 0 | 1 |
[52] Walshina esmaraldensis Last Modified in 12/28/20 | 218 | 84 | 84 | 0 | 1 | 0 | 0 | 1 |
[53] Walshina mcgrewi Last Modified in 12/28/20 | 234 | 68 | 68 | 0 | 1 | 0 | 0 | 1 |
[54] Walshina shifrae Last Modified in 12/28/20 | 237 | 65 | 65 | 0 | 1 | 0 | 0 | 1 |
[55] Eosimias sp. Last Modified in 12/28/20 | 110 | 196 | 191 | 0 | 2 | 0 | 0 | 1 |
[56] Tarsius sp. Last Modified in 12/28/20 | 6 | 293 | 290 | 0 | 7 | 0 | 0 | 1 |
[57] Aegyptopithecus zeuxis Last Modified in 12/28/20 | 48 | 242 | 242 | 0 | 13 | 0 | 0 | 1 |
[58] Apidium phiomense Last Modified in 12/28/20 | 47 | 252 | 249 | 0 | 7 | 0 | 0 | 1 |
[59] Catopithecus browni Last Modified in 12/28/20 | 61 | 231 | 231 | 0 | 11 | 0 | 0 | 1 |
[60] Parapithecus grangeri Last Modified in 12/28/20 | 144 | 156 | 155 | 0 | 4 | 0 | 0 | 1 |
[61] Aotus trivirgatus Last Modified in 12/28/20 | 4 | 296 | 288 | 0 | 11 | 0 | 0 | 1 |
[62] Callicebus moloch Last Modified in 12/28/20 | 3 | 292 | 290 | 0 | 10 | 0 | 0 | 1 |
[63] Dolichocebus gaimanensis Last Modified in 12/28/20 | 160 | 135 | 135 | 0 | 8 | 0 | 0 | 1 |
[64] Saimiri sciureus Last Modified in 12/28/20 | 3 | 297 | 290 | 0 | 10 | 0 | 0 | 1 |
[65] Proteopithecus sylviae Last Modified in 12/28/20 | 142 | 160 | 159 | 0 | 2 | 0 | 0 | 1 |
[66] Strigorhysis sp. Last Modified in 12/28/20 | 148 | 154 | 148 | 0 | 7 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 17259 | |
Project overview | 1532 | |
Matrix views | 1111 | Matrix landing page (972 views); (2 views); (46 views); (8 views); Matrix Lopez-Torres et al 2018 with character states embedded - Modified by curators from original submission (which didn't have the character states embedded) (83 views); |
Specimen list | 1570 | |
Taxon list | 8167 | |
Bibliography | 621 | |
Media views | 2857 | Media search (2467 views); M594428 (390 views); |
Views for media list | 869 | |
Documents list | 532 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 192 | |
Matrix downloads | 28 | (3 downloads); (18 downloads); Matrix Lopez-Torres et al 2018 with character states embedded - Modified by curators from original submission (which didn't have the character states embedded) (7 downloads); |
Media downloads | 1 | M594428 (1 download); |
Project downloads | 161 | |
Document downloads | 2 | López-Torres, Silcox & Holroyd (2018) matrix - Original matrix submitted by authors (without character states embedded) (2 downloads); |