Project 929: R. M. Beck, K. J. Travouillon, K. P. Aplin, H. Godthelp, M. Archer. 2014. The Osteology and Systematics of the Enigmatic Australian Oligo-Miocene Metatherian Yalkaparidon (Yalkaparidontidae; Yalkaparidontia; ?Australidelphia; Marsupialia). Journal of Mammalian Evolution. 21 (2):127-172.
Abstract
We provide the first detailed description of the osteology of the enigmatic Oligo-Miocene Australian metatherian Yalkaparidon. This taxon exhibits a number of unusual craniodental apomorphies but appears to be plesiomorphic within Metatheria in retaining four molars, rather than three as previously reported. We demonstrate that the only known skull of Yalkaparidon almost certainly represents a single individual. We also tentatively refer a number of isolated tarsals to the genus. Maximum parsimony analyses of a 258 character morphological matrix (with information from the tarsals described here either included or excluded) place Yalkaparidon within the superordinal clade Australidelphia, but Bayesian analyses of the same matrix are less well resolved, placing Yalkaparidon within Marsupialia but without unequivocally supporting australidelphian affinities. Bayesian analyses of a total evidence matrix that combines the morphological data with 9 kb of sequence data from five nuclear protein-coding genes (APOB, BRCA1, IRBP, RAG1 and VWF), 78 indels, and 53 retroposon insertion characters are similarly poorly resolved and do not clarify the supraordinal relationships of Yalkaparidon beyond suggesting that it is probably a member of Marsupialia. However, if the tarsal remains are correctly attributed to Yalkaparidon, then membership of Australidelphia seems likely, as these specimens exhibit characteristic australidelphian apomorphies. We conclude that the ordinal status of Yalkaparidon remains justified based on current evidence, and we present a revised diagnosis for Yalkaparidontia. We maintain the two currently recognized species, Y. coheni and Y. jonesi, but present revised specific diagnoses. We suggest a revised phylogenetic definition for Marsupialia, and provide phylogenetic definitions for Eomarsupialia (the clade comprising all extant Australian marsupial orders) and for the clade comprising Dasyuromorphia, Peramelemorphia, and Notoryctemorphia to the exclusion of Diprotodontia; we propose the name Agreodontia for the latter clade.Read the article »
Article DOI: 10.1007/s10914-013-9236-3
Project DOI: 10.7934/P929, http://dx.doi.org/10.7934/P929
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 15328 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 516 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 598 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:516/0 |
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MorphoBank Project 929
MorphoBank Project 929
- Creation Date:
11 April 2013 - Publication Date:
14 November 2013 - Matrix downloads: 55
This research
supported by
Authors' Institutions
- National Museum of Natural History, Smithsonian Institution
- University of Queensland
- American Museum of Natural History (AMNH)
- University of New South Wales
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Robin Beck Project Administrator | 38 | 0 | 1 | 516 | 0 | 0 | 15328 (14999, 0, 329) | 0 | 0 | 0 | ||||
Maureen Admin Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | ||||
MorphoBank Curator Full membership | 0 | 1 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M2051' (38 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Ornithorhynchus Taxon name last Modified on 12/05/13 | 27 | 210 | 208 | 0 | 23 | 0 | 0 | 3 |
[2] Tachyglossus Taxon name last Modified on 12/05/13 | 22 | 215 | 213 | 0 | 23 | 0 | 0 | 3 |
[3] † Vincelestes Taxon name last Modified on 12/05/13 | 79 | 172 | 171 | 0 | 8 | 0 | 0 | 3 |
[4] † Ukhaatherium Taxon name last Modified on 12/05/13 | 159 | 98 | 98 | 0 | 1 | 0 | 0 | 3 |
[5] † Asioryctes Taxon name last Modified on 12/05/13 | 146 | 111 | 111 | 0 | 1 | 0 | 0 | 3 |
[6] † Deltatheridium Taxon name last Modified on 12/05/13 | 175 | 78 | 78 | 0 | 5 | 0 | 0 | 3 |
[7] † Mayulestes Taxon name last Modified on 12/05/13 | 83 | 174 | 174 | 0 | 1 | 0 | 0 | 3 |
[8] † Pucadelphys Taxon name last Modified on 12/05/13 | 55 | 206 | 202 | 0 | 1 | 0 | 0 | 3 |
[9] † Andinodelphys Taxon name last Modified on 12/05/13 | 73 | 185 | 184 | 0 | 1 | 0 | 0 | 3 |
[10] Didelphis Taxon name last Modified on 12/05/13 | 2 | 265 | 254 | 0 | 2 | 0 | 0 | 3 |
[11] Monodelphis Taxon name last Modified on 12/05/13 | 3 | 261 | 253 | 0 | 2 | 0 | 0 | 3 |
[12] Caluromys Taxon name last Modified on 12/05/13 | 107 | 152 | 150 | 0 | 1 | 0 | 0 | 3 |
[13] Glironia Taxon name last Modified on 12/05/13 | 100 | 158 | 157 | 0 | 1 | 0 | 0 | 3 |
[14] Caenolestes Taxon name last Modified on 12/05/13 | 10 | 249 | 245 | 0 | 3 | 0 | 0 | 3 |
[15] Dasyuroides Taxon name last Modified on 12/05/13 | 12 | 248 | 242 | 0 | 4 | 0 | 0 | 3 |
[16] Dasyurus Taxon name last Modified on 12/05/13 | 8 | 262 | 249 | 0 | 1 | 0 | 0 | 3 |
[17] Phascogale Taxon name last Modified on 12/05/13 | 15 | 245 | 242 | 0 | 1 | 0 | 0 | 3 |
[18] Notoryctes Taxon name last Modified on 12/05/13 | 43 | 208 | 205 | 0 | 10 | 0 | 0 | 3 |
[19] Echymipera Taxon name last Modified on 12/05/13 | 9 | 248 | 245 | 0 | 4 | 0 | 0 | 3 |
[20] Perameles Taxon name last Modified on 12/05/13 | 4 | 255 | 250 | 0 | 4 | 0 | 0 | 3 |
[21] Dromiciops Taxon name last Modified on 12/05/13 | 7 | 252 | 249 | 0 | 2 | 0 | 0 | 3 |
[22] Trichosurus Taxon name last Modified on 12/05/13 | 3 | 258 | 252 | 0 | 3 | 0 | 0 | 3 |
[23] Phalanger Taxon name last Modified on 12/05/13 | 8 | 252 | 246 | 0 | 4 | 0 | 0 | 3 |
[24] Petaurus Taxon name last Modified on 12/05/13 | 1 | 255 | 252 | 0 | 5 | 0 | 0 | 3 |
[25] Pseudochirops Taxon name last Modified on 12/05/13 | 5 | 250 | 249 | 0 | 4 | 0 | 0 | 3 |
[26] Cercartetus Taxon name last Modified on 12/05/13 | 23 | 231 | 231 | 0 | 4 | 0 | 0 | 3 |
[27] Macropus Taxon name last Modified on 12/05/13 | 3 | 256 | 251 | 0 | 4 | 0 | 0 | 3 |
[28] Dendrolagus Taxon name last Modified on 12/05/13 | 11 | 245 | 242 | 0 | 5 | 0 | 0 | 3 |
[29] Dorcopsis Taxon name last Modified on 12/05/13 | 15 | 240 | 239 | 0 | 4 | 0 | 0 | 3 |
[30] Thylogale Taxon name last Modified on 12/05/13 | 21 | 234 | 233 | 0 | 4 | 0 | 0 | 3 |
[31] Vombatus Taxon name last Modified on 12/05/13 | 8 | 247 | 241 | 0 | 9 | 0 | 0 | 3 |
[32] Phascolarctos Taxon name last Modified on 12/05/13 | 9 | 242 | 242 | 0 | 7 | 0 | 0 | 3 |
[33] † Asiatherium Taxon name last Modified on 12/05/13 | 208 | 51 | 50 | 0 | 0 | 0 | 0 | 3 |
[34] † Herpetotherium Taxon name last Modified on 12/05/13 | 105 | 152 | 152 | 0 | 1 | 0 | 0 | 3 |
[35] † Peradectidae Taxon name last Modified on 12/05/13 | 188 | 70 | 70 | 0 | 0 | 0 | 0 | 3 |
[36] † Djarthia Taxon name last Modified on 12/05/13 | 172 | 89 | 84 | 0 | 2 | 0 | 0 | 3 |
[37] † Palaeothentes Taxon name last Modified on 12/05/13 | 176 | 80 | 80 | 0 | 2 | 0 | 0 | 3 |
[38] † Yalkaparidon Taxon name last Modified on 12/05/13 | 178 | 78 | 73 | 0 | 7 | 0 | 0 | 3 |
Taxonomic Overview for Matrix 'M2052' (38 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Ornithorhynchus Taxon name last Modified on 12/05/13 | 27 | 210 | 208 | 0 | 23 | 0 | 0 | 3 |
[2] Tachyglossus Taxon name last Modified on 12/05/13 | 22 | 215 | 213 | 0 | 23 | 0 | 0 | 3 |
[3] † Vincelestes Taxon name last Modified on 12/05/13 | 79 | 172 | 171 | 0 | 8 | 0 | 0 | 3 |
[4] † Ukhaatherium Taxon name last Modified on 12/05/13 | 159 | 98 | 98 | 0 | 1 | 0 | 0 | 3 |
[5] † Asioryctes Taxon name last Modified on 12/05/13 | 146 | 111 | 111 | 0 | 1 | 0 | 0 | 3 |
[6] † Deltatheridium Taxon name last Modified on 12/05/13 | 175 | 78 | 78 | 0 | 5 | 0 | 0 | 3 |
[7] † Mayulestes Taxon name last Modified on 12/05/13 | 83 | 174 | 174 | 0 | 1 | 0 | 0 | 3 |
[8] † Pucadelphys Taxon name last Modified on 12/05/13 | 55 | 206 | 202 | 0 | 1 | 0 | 0 | 3 |
[9] † Andinodelphys Taxon name last Modified on 12/05/13 | 73 | 185 | 184 | 0 | 1 | 0 | 0 | 3 |
[10] Didelphis Taxon name last Modified on 12/05/13 | 2 | 265 | 254 | 0 | 2 | 0 | 0 | 3 |
[11] Monodelphis Taxon name last Modified on 12/05/13 | 3 | 261 | 253 | 0 | 2 | 0 | 0 | 3 |
[12] Caluromys Taxon name last Modified on 12/05/13 | 107 | 152 | 150 | 0 | 1 | 0 | 0 | 3 |
[13] Glironia Taxon name last Modified on 12/05/13 | 100 | 158 | 157 | 0 | 1 | 0 | 0 | 3 |
[14] Caenolestes Taxon name last Modified on 12/05/13 | 10 | 249 | 245 | 0 | 3 | 0 | 0 | 3 |
[15] Dasyuroides Taxon name last Modified on 12/05/13 | 12 | 248 | 242 | 0 | 4 | 0 | 0 | 3 |
[16] Dasyurus Taxon name last Modified on 12/05/13 | 8 | 262 | 249 | 0 | 1 | 0 | 0 | 3 |
[17] Phascogale Taxon name last Modified on 12/05/13 | 15 | 245 | 242 | 0 | 1 | 0 | 0 | 3 |
[18] Notoryctes Taxon name last Modified on 12/05/13 | 43 | 208 | 205 | 0 | 10 | 0 | 0 | 3 |
[19] Echymipera Taxon name last Modified on 12/05/13 | 9 | 248 | 245 | 0 | 4 | 0 | 0 | 3 |
[20] Perameles Taxon name last Modified on 12/05/13 | 4 | 255 | 250 | 0 | 4 | 0 | 0 | 3 |
[21] Dromiciops Taxon name last Modified on 12/05/13 | 7 | 252 | 249 | 0 | 2 | 0 | 0 | 3 |
[22] Trichosurus Taxon name last Modified on 12/05/13 | 3 | 258 | 252 | 0 | 3 | 0 | 0 | 3 |
[23] Phalanger Taxon name last Modified on 12/05/13 | 8 | 252 | 246 | 0 | 4 | 0 | 0 | 3 |
[24] Petaurus Taxon name last Modified on 12/05/13 | 1 | 255 | 252 | 0 | 5 | 0 | 0 | 3 |
[25] Pseudochirops Taxon name last Modified on 12/05/13 | 5 | 250 | 249 | 0 | 4 | 0 | 0 | 3 |
[26] Cercartetus Taxon name last Modified on 12/05/13 | 23 | 231 | 231 | 0 | 4 | 0 | 0 | 3 |
[27] Macropus Taxon name last Modified on 12/05/13 | 3 | 256 | 251 | 0 | 4 | 0 | 0 | 3 |
[28] Dendrolagus Taxon name last Modified on 12/05/13 | 11 | 245 | 242 | 0 | 5 | 0 | 0 | 3 |
[29] Dorcopsis Taxon name last Modified on 12/05/13 | 15 | 240 | 239 | 0 | 4 | 0 | 0 | 3 |
[30] Thylogale Taxon name last Modified on 12/05/13 | 21 | 234 | 233 | 0 | 4 | 0 | 0 | 3 |
[31] Vombatus Taxon name last Modified on 12/05/13 | 8 | 247 | 241 | 0 | 9 | 0 | 0 | 3 |
[32] Phascolarctos Taxon name last Modified on 12/05/13 | 9 | 242 | 242 | 0 | 7 | 0 | 0 | 3 |
[33] † Asiatherium Taxon name last Modified on 12/05/13 | 208 | 51 | 50 | 0 | 0 | 0 | 0 | 3 |
[34] † Herpetotherium Taxon name last Modified on 12/05/13 | 105 | 152 | 152 | 0 | 1 | 0 | 0 | 3 |
[35] † Peradectidae Taxon name last Modified on 12/05/13 | 188 | 70 | 70 | 0 | 0 | 0 | 0 | 3 |
[36] † Djarthia Taxon name last Modified on 12/05/13 | 172 | 89 | 84 | 0 | 2 | 0 | 0 | 3 |
[37] † Palaeothentes Taxon name last Modified on 12/05/13 | 176 | 80 | 80 | 0 | 2 | 0 | 0 | 3 |
[38] † Yalkaparidon Taxon name last Modified on 12/05/13 | 145 | 113 | 105 | 0 | 8 | 0 | 0 | 3 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 360 | |
Matrix downloads | 55 | Yalkaparidon matrix - Yalkaparidon scored for craniodental and tarsal characters (31 downloads); Yalkaparidon matrix - Yalkaparidon scored for craniodental characters only (24 downloads); |
Project downloads | 305 |