Project 3766: M. Viglino, C. M. Gaetán, J. I. Cuitiño, M. R. Buono. 2020. First Toothless Platanistoid from the Early Miocene of Patagonia: the Golden Age of Diversification of the Odontoceti. Journal of Mammalian Evolution. epub ahead of print:none yet.
Abstract
Lower Miocene outcrops from Patagonia (Gaiman Formation, Burdigalian) may reveal more clues for the yet unknown aspects for this period in the evolution of odontocetes. Here, we present the first toothless platanistoid dolphin from the lower Miocene of Patagonia, Dolgopolis kinchikafiforo, gen. et sp. nov. The specimen includes an incomplete skull, with no mandibles or earbones, but sufficiently different from other named odontocetes to propose a new genus and species. Phylogenetic analyses indicate it is a platanistoid of uncertain position within the group, and that it shares some homoplastic characters with physeteroids and ziphioids. Given the absence of defined alveoli and teeth and an inferred moderately short and wide rostrum, we interpreted this new species as most likely a capture suction feeder. Based on our phylogenetic hypothesis, the optimization of feeding strategies recovered raptorial feeding as the plesiomorphic method, and convergent evolution of capture suction feeders in at least four lineages. Platanistoids recorded all feeding strategies during the late Oligocene-early Miocene, although raptorial is the predominant method. This suggests a partitioning of the ecological niches in the early phases of platanistoid evolution, as well as a high diversification of feeding methods previously underestimated for this period. Thus, ecological adaptations have a strong evolutionary pressure in odontocete communities and should be further explored.Read the article »
Article DOI: 10.1007/s10914-020-09505-w
Project DOI: 10.7934/P3766, http://dx.doi.org/10.7934/P3766
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 17601 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 286 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 733 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:286/0 |
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MorphoBank Project 3766
MorphoBank Project 3766
- Creation Date:
02 July 2020 - Publication Date:
26 August 2020 - Project views: 13138
- Matrix downloads: 2
Authors' Institutions
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
- Instituto Patagónico de Geología y Paleontología, CCT CONICET-CENPAT
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
MorphoBank Curator Project Administrator | 89 | 1 | 1 | 286 | 0 | 0 | 17601 (17234, 0, 367) | 0 | 0 | 0 | ||||
Mariana Viglino Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M26816' (89 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Georgiacetus vogtlensis Last Modified in 07/13/20 | 134 | 140 | 140 | 0 | 12 | 0 | 0 | 2 |
[2] † Zygorhiza kochii Last Modified in 07/13/20 | 68 | 211 | 208 | 0 | 10 | 0 | 0 | 2 |
[3] † Archaeodelphis patrius Last Modified in 07/13/20 | 165 | 111 | 111 | 0 | 10 | 0 | 0 | 2 |
[4] † Xenorophus sloanii Last Modified in 07/13/20 | 195 | 86 | 86 | 0 | 5 | 0 | 0 | 2 |
[5] † Agorophius pygmaeus Last Modified in 07/13/20 | 149 | 134 | 133 | 0 | 4 | 0 | 0 | 2 |
[6] † Patriocetus kazakhstanicus Last Modified in 07/13/20 | 166 | 118 | 117 | 0 | 3 | 0 | 0 | 2 |
[7] † Orycterocetus crocodilinus Last Modified in 07/13/20 | 103 | 177 | 172 | 0 | 11 | 0 | 0 | 2 |
[8] Physeter catodon Last Modified in 07/07/20 | 13 | 266 | 262 | 0 | 11 | 0 | 0 | 2 |
[9] Kogia breviceps Last Modified in 07/07/20 | 11 | 257 | 255 | 0 | 20 | 0 | 0 | 2 |
[10] Tasmacetus shepherdi Last Modified in 07/07/20 | 12 | 273 | 270 | 0 | 4 | 0 | 0 | 2 |
[11] Berardius bairdii Last Modified in 07/07/20 | 17 | 267 | 262 | 0 | 7 | 0 | 0 | 2 |
[12] Ziphius cavirostris Last Modified in 07/07/20 | 9 | 276 | 268 | 0 | 9 | 0 | 0 | 2 |
[13] Mesoplodon ginkgodens Last Modified in 07/07/20 | 30 | 250 | 249 | 0 | 7 | 0 | 0 | 2 |
[14] † Xiphiacetus bossi Last Modified in 07/13/20 | 54 | 234 | 227 | 0 | 5 | 0 | 0 | 2 |
[15] † Simocetus rayi Last Modified in 07/13/20 | 129 | 155 | 155 | 0 | 2 | 0 | 0 | 2 |
[16] Lipotes vexillifer Last Modified in 07/07/20 | 6 | 278 | 278 | 0 | 2 | 0 | 0 | 2 |
[17] † Parapontoporia sternbergi Last Modified in 07/13/20 | 130 | 157 | 153 | 0 | 3 | 0 | 0 | 2 |
[18] Inia geoffrensis Last Modified in 07/07/20 | 5 | 284 | 271 | 0 | 10 | 0 | 0 | 2 |
[19] Pontoporia blainvillei Last Modified in 07/07/20 | 5 | 281 | 276 | 0 | 5 | 0 | 0 | 2 |
[20] † Pliopontos littoralis Last Modified in 07/13/20 | 110 | 175 | 171 | 0 | 5 | 0 | 0 | 2 |
[21] † Brachydelphis mazeasi Last Modified in 07/13/20 | 90 | 201 | 194 | 0 | 2 | 0 | 0 | 2 |
[22] † Kentriodon pernix Last Modified in 07/13/20 | 63 | 225 | 220 | 0 | 3 | 0 | 0 | 2 |
[23] † Atocetus iquensis Last Modified in 07/13/20 | 61 | 224 | 221 | 0 | 4 | 0 | 0 | 2 |
[24] † Hadrodelphis calvertense Last Modified in 07/13/20 | 122 | 159 | 159 | 0 | 5 | 0 | 0 | 2 |
[25] † Albireo whistleri Last Modified in 07/13/20 | 53 | 229 | 229 | 0 | 4 | 0 | 0 | 2 |
[26] † Denebola brachycephala Last Modified in 07/13/20 | 137 | 147 | 147 | 0 | 2 | 0 | 0 | 2 |
[27] Delphinapterus leucas Last Modified in 07/07/20 | 5 | 283 | 276 | 0 | 5 | 0 | 0 | 2 |
[28] Monodon monoceros Last Modified in 07/07/20 | 11 | 275 | 267 | 0 | 8 | 0 | 0 | 2 |
[29] † Odobenocetops peruvianus Last Modified in 07/13/20 | 107 | 160 | 160 | 0 | 19 | 0 | 0 | 2 |
[30] † Australithax intermedia Last Modified in 07/13/20 | 166 | 119 | 119 | 0 | 1 | 0 | 0 | 2 |
[31] † Lomacetus ginsburgi Last Modified in 07/13/20 | 173 | 112 | 112 | 0 | 1 | 0 | 0 | 2 |
[32] † Miophocaena nishinoi Last Modified in 07/13/20 | 200 | 86 | 86 | 0 | 0 | 0 | 0 | 2 |
[33] † Archaeophocaena teshioensis Last Modified in 07/13/20 | 229 | 55 | 55 | 0 | 2 | 0 | 0 | 2 |
[34] † Pterophocaena nishinoi Last Modified in 07/13/20 | 134 | 151 | 151 | 0 | 1 | 0 | 0 | 2 |
[35] † Haborophocoena minutus Last Modified in 07/13/20 | 176 | 110 | 109 | 0 | 1 | 0 | 0 | 2 |
[36] † Haborophocoena toyoshimai Last Modified in 07/13/20 | 111 | 174 | 174 | 0 | 1 | 0 | 0 | 2 |
[37] † Piscolithax boreios Last Modified in 07/13/20 | 135 | 149 | 149 | 0 | 2 | 0 | 0 | 2 |
[38] † Piscolithax longirostris Last Modified in 07/13/20 | 94 | 190 | 190 | 0 | 2 | 0 | 0 | 2 |
[39] † Piscolithax tedfordi Last Modified in 07/13/20 | 110 | 174 | 174 | 0 | 2 | 0 | 0 | 2 |
[40] † Salumiphocaena stocktoni Last Modified in 07/13/20 | 153 | 130 | 130 | 0 | 3 | 0 | 0 | 2 |
[41] † Septemtriocetus bosselaersi Last Modified in 07/13/20 | 196 | 85 | 85 | 0 | 5 | 0 | 0 | 2 |
[42] Phocoena sinus Last Modified in 07/07/20 | 21 | 265 | 262 | 0 | 3 | 0 | 0 | 2 |
[43] Phocoena spinipinnis Last Modified in 07/07/20 | 17 | 274 | 266 | 0 | 3 | 0 | 0 | 2 |
[44] Phocoena dioptrica Last Modified in 07/07/20 | 70 | 219 | 213 | 0 | 3 | 0 | 0 | 2 |
[45] Phocoena phocoena Last Modified in 07/07/20 | 6 | 286 | 276 | 0 | 4 | 0 | 0 | 2 |
[46] Phocoenoides dalli Last Modified in 07/07/20 | 18 | 279 | 266 | 0 | 2 | 0 | 0 | 2 |
[47] Neophocaena phocaenoides Last Modified in 07/07/20 | 12 | 279 | 270 | 0 | 4 | 0 | 0 | 2 |
[48] Lissodelphis borealis Last Modified in 07/07/20 | 25 | 266 | 259 | 0 | 2 | 0 | 0 | 2 |
[49] Cephalorhynchus hectori Last Modified in 07/07/20 | 15 | 270 | 268 | 0 | 3 | 0 | 0 | 2 |
[50] Lagenorhynchus acutus Last Modified in 07/07/20 | 31 | 253 | 252 | 0 | 3 | 0 | 0 | 2 |
[51] Orcaella brevirostris Last Modified in 07/07/20 | 33 | 252 | 249 | 0 | 4 | 0 | 0 | 2 |
[52] Orcinus orca Last Modified in 07/07/20 | 15 | 276 | 266 | 0 | 5 | 0 | 0 | 2 |
[53] Feresa attenuata Last Modified in 07/07/20 | 18 | 268 | 264 | 0 | 4 | 0 | 0 | 2 |
[54] Globicephala macrorhynchus Last Modified in 07/07/20 | 18 | 266 | 263 | 0 | 5 | 0 | 0 | 2 |
[55] Grampus griseus Last Modified in 07/07/20 | 22 | 265 | 260 | 0 | 4 | 0 | 0 | 2 |
[56] † Hemisyntrachelus cortesii Last Modified in 07/13/20 | 106 | 177 | 176 | 0 | 4 | 0 | 0 | 2 |
[57] Peponocephala electra Last Modified in 07/07/20 | 24 | 262 | 258 | 0 | 4 | 0 | 0 | 2 |
[58] Pseudorca crassidens Last Modified in 07/07/20 | 17 | 274 | 264 | 0 | 5 | 0 | 0 | 2 |
[59] Delphinus delphis Last Modified in 07/07/20 | 13 | 276 | 269 | 0 | 4 | 0 | 0 | 2 |
[60] Lagenodelphis hosei Last Modified in 07/07/20 | 21 | 268 | 262 | 0 | 3 | 0 | 0 | 2 |
[61] Sousa chinensis Last Modified in 07/07/20 | 38 | 254 | 245 | 0 | 3 | 0 | 0 | 2 |
[62] Stenella attenuata Last Modified in 07/07/20 | 15 | 278 | 267 | 0 | 4 | 0 | 0 | 2 |
[63] Tursiops truncatus Last Modified in 07/07/20 | 1 | 297 | 281 | 0 | 4 | 0 | 0 | 2 |
[64] Sotalia fluviatilis Last Modified in 07/07/20 | 22 | 266 | 261 | 0 | 3 | 0 | 0 | 2 |
[65] Steno bredanensis Last Modified in 07/07/20 | 15 | 275 | 267 | 0 | 4 | 0 | 0 | 2 |
[66] † Eodelphinus kabatensis Last Modified in 07/13/20 | 158 | 129 | 128 | 0 | 0 | 0 | 0 | 2 |
[67] † Papahu taitapu Last Modified in 07/13/20 | 149 | 137 | 136 | 0 | 1 | 0 | 0 | 2 |
[68] † Waipatia hectori Last Modified in 07/13/20 | 239 | 46 | 45 | 0 | 2 | 0 | 0 | 2 |
[69] † Awamokoa tokarahi Last Modified in 07/13/20 | 208 | 80 | 78 | 0 | 0 | 0 | 0 | 2 |
[70] † Waipatia maerewhenua Last Modified in 07/13/20 | 80 | 203 | 202 | 0 | 4 | 0 | 0 | 2 |
[71] † Otekaikea marplesi Last Modified in 07/13/20 | 124 | 162 | 161 | 0 | 1 | 0 | 0 | 2 |
[72] † Otekaikea huata Last Modified in 07/13/20 | 118 | 168 | 167 | 0 | 1 | 0 | 0 | 2 |
[73] † Squalodon calvertensis Last Modified in 07/13/20 | 67 | 219 | 216 | 0 | 3 | 0 | 0 | 2 |
[74] † Notocetus vanbenedeni Last Modified in 07/13/20 | 75 | 211 | 206 | 0 | 5 | 0 | 0 | 2 |
[75] † Squalodelphis fabianii Last Modified in 07/13/20 | 181 | 106 | 104 | 0 | 1 | 0 | 0 | 2 |
[76] † Prosqualodon davidis Last Modified in 07/13/20 | 103 | 182 | 177 | 0 | 6 | 0 | 0 | 2 |
[77] † Squaloziphius emlongi Last Modified in 07/13/20 | 156 | 125 | 124 | 0 | 6 | 0 | 0 | 2 |
[78] † Zarhachis flagellator Last Modified in 07/13/20 | 78 | 211 | 205 | 0 | 3 | 0 | 0 | 2 |
[79] † Pomatodelphis inaequalis Last Modified in 07/13/20 | 112 | 167 | 167 | 0 | 7 | 0 | 0 | 2 |
[80] Platanista gangetica Last Modified in 07/07/20 | 17 | 270 | 263 | 0 | 6 | 0 | 0 | 2 |
[81] † Phocageneus venustus Last Modified in 07/13/20 | 252 | 35 | 34 | 0 | 0 | 0 | 0 | 2 |
[82] † Papahu sp zmt 73 Last Modified in 07/13/20 | 242 | 44 | 44 | 0 | 0 | 0 | 0 | 2 |
[83] † OU 22670 Last Modified in 07/13/20 | 231 | 57 | 55 | 0 | 0 | 0 | 0 | 2 |
[84] † Phoberodon arctirostris Last Modified in 07/13/20 | 137 | 149 | 147 | 0 | 2 | 0 | 0 | 2 |
[85] † OU 21798 Last Modified in 07/13/20 | 82 | 212 | 204 | 0 | 0 | 0 | 0 | 2 |
[86] † Aondelphis talen Last Modified in 07/13/20 | 220 | 64 | 64 | 0 | 2 | 0 | 0 | 2 |
[87] † Dolgopolis kinchikafiforo Last Modified in 07/13/20 | 177 | 99 | 98 | 0 | 11 | 0 | 0 | 2 |
[88] † Inticetus vertizi Last Modified in 07/13/20 | 145 | 146 | 141 | 0 | 0 | 0 | 0 | 2 |
[89] † Prosqualodon australis Last Modified in 07/13/20 | 186 | 99 | 99 | 0 | 1 | 0 | 0 | 2 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 13138 | |
Project overview | 1009 | |
Matrix views | 677 | Data matrix provided by author (82 views); Matrix landing page (595 views); |
Media views | 2148 | Media search (1784 views); M692519 (364 views); |
Specimen list | 1169 | |
Documents list | 510 | |
Taxon list | 6542 | |
Views for media list | 620 | |
Bibliography | 463 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 90 | |
Project downloads | 88 | |
Matrix downloads | 2 | Data matrix provided by author (2 downloads); |