Project 4517: M. Viglino, M. R. Buono, Y. Tanaka, J. I. Cuitiño, R. E. Fordyce. 2022. Unravelling the identity of the platanistoid Notocetus vanbenedeni Moreno, 1892 (Cetacea, Odontoceti) from the early Miocene of Patagonia (Argentina). Journal of Systematic Palaeontology. 20 (1):2082890.
Abstract
Platanistoidea remains one of the most evolutionarily intriguing lineages of toothed whales (Odontoceti). The clade comprises mostly extinct species from the late Oligocene–early Miocene onward and a single extant riverine genus (Platanista). There is an ongoing debate as to the membership of Platanistoidea and the causes of their near extinction. In Patagonia (Argentina), the most abundant platanistoid recorded in the lower Miocene Gaiman Formation is Notocetus vanbenedeni, first described by Moreno in 1892 based on two individuals. The goal of the present contribution is to conduct an updated anatomical, palaeobiological and phylogenetic analyses of Notocetus vanbenedeni and hence contribute to an understanding of the evolutionary history of the Platanistoidea. Our analyses, including at least 26 individuals (12 undescribed), show that Notocetus vanbenedeni is a valid platanistoid taxon, recovered as part of a new clade. Among its most outstanding features, this taxon has an elevated dorsal tubercular supraorbital crest formed mainly by the frontal, the precursor of the pneumatized crest of the extant Platanista. Notocetus vanbenedeni also shows initial stages of the plesiomorphic bony connection between the earbones and skull as in Platanista, although the functional implications for hearing remain elusive. The nasal sac system, pterygoid sinus system and morphology of the earbones suggest that this species was able to hear high-frequency sounds and echolocate underwater, similar to extant odontocetes. Thus, Notocetus vanbenedeni presents a mosaic of features that suggest an intermediate platanistoid morphotype. Anatomical differences and phylogenetic analyses suggest that Peruvian specimens could not be referred to this species. The feeding apparatus of Notocetus vanbenedeni makes it the only combination suction-feeder recorded in the early Miocene of Patagonia and among the smallest odontocetes. Finally, the abundant records of Notocetus vanbenedeni in an inner shelf environment with freshwater influence suggest a possible early preference for such protected habitats.Read the article »
Article DOI: 10.1080/14772019.2022.2082890
Project DOI: 10.7934/P4517, http://dx.doi.org/10.7934/P4517
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 18906 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 285 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 729 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:285/0 |
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MorphoBank Project 4517
MorphoBank Project 4517
- Creation Date:
09 January 2023 - Publication Date:
10 January 2023 - Project views: 6168
- Matrix downloads: 3
Authors' Institutions
- Osaka Museum of Natural History, Osaka, Osaka Prefecture
- University of Otago
- 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 | 99 | 6 | 6 | 285 | 0 | 0 | 18906 (18521, 0, 385) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29110' (99 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 01/10/23 | 134 | 139 | 139 | 0 | 12 | 0 | 0 | 1 |
[2] Zygorhiza kochii Last Modified in 01/10/23 | 67 | 210 | 207 | 0 | 11 | 0 | 0 | 1 |
[3] † Archaeodelphis patrius Last Modified in 01/10/23 | 164 | 111 | 111 | 0 | 10 | 0 | 0 | 1 |
[4] † Xenorophus sloanii Last Modified in 01/10/23 | 194 | 85 | 85 | 0 | 6 | 0 | 0 | 1 |
[5] † Agorophius pygmaeus Last Modified in 01/10/23 | 182 | 99 | 98 | 0 | 5 | 0 | 0 | 1 |
[6] † Patriocetus kazakhstanicus Last Modified in 01/10/23 | 164 | 117 | 116 | 0 | 5 | 0 | 0 | 1 |
[7] † Simocetus rayi Last Modified in 01/10/23 | 128 | 154 | 154 | 0 | 3 | 0 | 0 | 1 |
[8] † Xiphiacetus bossi Last Modified in 01/10/23 | 53 | 233 | 226 | 0 | 6 | 0 | 0 | 1 |
[9] † Orycterocetus crocodilinus Last Modified in 01/10/23 | 103 | 176 | 171 | 0 | 11 | 0 | 0 | 1 |
[10] Physeter catodon Last Modified in 01/10/23 | 13 | 265 | 261 | 0 | 11 | 0 | 0 | 1 |
[11] Kogia breviceps Last Modified in 01/10/23 | 11 | 256 | 254 | 0 | 20 | 0 | 0 | 1 |
[12] † Tasmacetus shepherdi Last Modified in 01/10/23 | 12 | 271 | 268 | 0 | 5 | 0 | 0 | 1 |
[13] Berardius bairdii Last Modified in 01/10/23 | 16 | 266 | 261 | 0 | 8 | 0 | 0 | 1 |
[14] Ziphius cavirostris Last Modified in 01/10/23 | 8 | 275 | 267 | 0 | 10 | 0 | 0 | 1 |
[15] Mesoplodon ginkgodens Last Modified in 01/10/23 | 28 | 249 | 248 | 0 | 9 | 0 | 0 | 1 |
[16] Lipotes vexillifer Last Modified in 01/10/23 | 6 | 277 | 277 | 0 | 2 | 0 | 0 | 1 |
[17] † Parapontoporia sternbergi Last Modified in 01/10/23 | 130 | 156 | 152 | 0 | 3 | 0 | 0 | 1 |
[18] Inia geoffrensis Last Modified in 01/10/23 | 5 | 283 | 270 | 0 | 10 | 0 | 0 | 1 |
[19] Pontoporia blainvillei Last Modified in 01/10/23 | 4 | 281 | 276 | 0 | 5 | 0 | 0 | 1 |
[20] † Pliopontos littoralis Last Modified in 01/10/23 | 110 | 174 | 170 | 0 | 5 | 0 | 0 | 1 |
[21] † Brachydelphis mazeasi Last Modified in 01/10/23 | 90 | 200 | 193 | 0 | 2 | 0 | 0 | 1 |
[22] † Kentriodon pernix Last Modified in 01/10/23 | 63 | 224 | 219 | 0 | 3 | 0 | 0 | 1 |
[23] † Atocetus iquensis Last Modified in 01/10/23 | 61 | 223 | 220 | 0 | 4 | 0 | 0 | 1 |
[24] † Hadrodelphis calvertense Last Modified in 01/10/23 | 122 | 158 | 158 | 0 | 5 | 0 | 0 | 1 |
[25] † Albireo whistleri Last Modified in 01/10/23 | 52 | 229 | 229 | 0 | 4 | 0 | 0 | 1 |
[26] † Denebola brachycephala Last Modified in 01/10/23 | 137 | 146 | 146 | 0 | 2 | 0 | 0 | 1 |
[27] Delphinapterus leucas Last Modified in 01/10/23 | 5 | 282 | 275 | 0 | 5 | 0 | 0 | 1 |
[28] Monodon monoceros Last Modified in 01/10/23 | 11 | 274 | 266 | 0 | 8 | 0 | 0 | 1 |
[29] † Odobenocetops peruvianus Last Modified in 01/10/23 | 107 | 159 | 159 | 0 | 19 | 0 | 0 | 1 |
[30] † Australithax intermedia Last Modified in 01/10/23 | 165 | 119 | 119 | 0 | 1 | 0 | 0 | 1 |
[31] † Lomacetus ginsburgi Last Modified in 01/10/23 | 173 | 111 | 111 | 0 | 1 | 0 | 0 | 1 |
[32] † Miophocaena nishinoi Last Modified in 01/10/23 | 199 | 86 | 86 | 0 | 0 | 0 | 0 | 1 |
[33] † Archaeophocaena teshioensis Last Modified in 01/10/23 | 228 | 55 | 55 | 0 | 2 | 0 | 0 | 1 |
[34] † Pterophocaena nishinoi Last Modified in 01/10/23 | 133 | 151 | 151 | 0 | 1 | 0 | 0 | 1 |
[35] † Haborophocoena minutus Last Modified in 01/10/23 | 175 | 110 | 109 | 0 | 1 | 0 | 0 | 1 |
[36] † Haborophocoena toyoshimai Last Modified in 01/10/23 | 110 | 174 | 174 | 0 | 1 | 0 | 0 | 1 |
[37] † Piscolithax boreios Last Modified in 01/10/23 | 134 | 149 | 149 | 0 | 2 | 0 | 0 | 1 |
[38] † Piscolithax longirostris Last Modified in 01/10/23 | 93 | 190 | 190 | 0 | 2 | 0 | 0 | 1 |
[39] † Piscolithax tedfordi Last Modified in 01/10/23 | 109 | 174 | 174 | 0 | 2 | 0 | 0 | 1 |
[40] † Salumiphocaena stocktoni Last Modified in 01/10/23 | 152 | 130 | 130 | 0 | 3 | 0 | 0 | 1 |
[41] † Septemtriocetus bosselaersi Last Modified in 01/10/23 | 195 | 85 | 85 | 0 | 5 | 0 | 0 | 1 |
[42] Phocoena sinus Last Modified in 01/10/23 | 20 | 265 | 262 | 0 | 3 | 0 | 0 | 1 |
[43] Phocoena spinipinnis Last Modified in 01/10/23 | 16 | 274 | 266 | 0 | 3 | 0 | 0 | 1 |
[44] Phocoena dioptrica Last Modified in 01/10/23 | 69 | 219 | 213 | 0 | 3 | 0 | 0 | 1 |
[45] Phocoena phocoena Last Modified in 01/10/23 | 6 | 285 | 275 | 0 | 4 | 0 | 0 | 1 |
[46] Phocoenoides dalli Last Modified in 01/10/23 | 18 | 278 | 265 | 0 | 2 | 0 | 0 | 1 |
[47] Neophocaena phocaenoides Last Modified in 01/10/23 | 11 | 279 | 270 | 0 | 4 | 0 | 0 | 1 |
[48] Lissodelphis borealis Last Modified in 01/10/23 | 25 | 265 | 258 | 0 | 2 | 0 | 0 | 1 |
[49] Cephalorhynchus hectori Last Modified in 01/10/23 | 14 | 270 | 268 | 0 | 3 | 0 | 0 | 1 |
[50] Lagenorhynchus acutus Last Modified in 01/10/23 | 31 | 252 | 251 | 0 | 3 | 0 | 0 | 1 |
[51] Orcaella brevirostris Last Modified in 01/10/23 | 33 | 251 | 248 | 0 | 4 | 0 | 0 | 1 |
[52] Orcinus orca Last Modified in 01/10/23 | 15 | 275 | 265 | 0 | 5 | 0 | 0 | 1 |
[53] Feresa attenuata Last Modified in 01/10/23 | 18 | 267 | 263 | 0 | 4 | 0 | 0 | 1 |
[54] Globicephala macrorhynchus Last Modified in 01/10/23 | 18 | 265 | 262 | 0 | 5 | 0 | 0 | 1 |
[55] Grampus griseus Last Modified in 01/10/23 | 22 | 264 | 259 | 0 | 4 | 0 | 0 | 1 |
[56] † Hemisyntrachelus cortesii Last Modified in 01/10/23 | 106 | 176 | 175 | 0 | 4 | 0 | 0 | 1 |
[57] Peponocephala electra Last Modified in 01/10/23 | 24 | 261 | 257 | 0 | 4 | 0 | 0 | 1 |
[58] Pseudorca crassidens Last Modified in 01/10/23 | 17 | 273 | 263 | 0 | 5 | 0 | 0 | 1 |
[59] Delphinus delphis Last Modified in 01/10/23 | 12 | 276 | 269 | 0 | 4 | 0 | 0 | 1 |
[60] † Lagenodelphis hosei Last Modified in 01/10/23 | 20 | 268 | 262 | 0 | 3 | 0 | 0 | 1 |
[61] Sousa chinensis Last Modified in 01/10/23 | 38 | 253 | 244 | 0 | 3 | 0 | 0 | 1 |
[62] Stenella attenuata Last Modified in 01/10/23 | 15 | 277 | 266 | 0 | 4 | 0 | 0 | 1 |
[63] Tursiops truncatus Last Modified in 01/10/23 | 1 | 296 | 280 | 0 | 4 | 0 | 0 | 1 |
[64] Sotalia fluviatilis Last Modified in 01/10/23 | 22 | 265 | 260 | 0 | 3 | 0 | 0 | 1 |
[65] Steno bredanensis Last Modified in 01/10/23 | 15 | 274 | 266 | 0 | 4 | 0 | 0 | 1 |
[66] † Eodelphinus kabatensis Last Modified in 01/10/23 | 157 | 129 | 128 | 0 | 0 | 0 | 0 | 1 |
[67] † Squaloziphius emlongi Last Modified in 01/10/23 | 156 | 125 | 124 | 0 | 5 | 0 | 0 | 1 |
[68] † Squalodon calvertensis Last Modified in 01/10/23 | 66 | 218 | 215 | 0 | 4 | 0 | 0 | 1 |
[69] Prosqualodon australis Last Modified in 01/10/23 | 186 | 98 | 98 | 0 | 1 | 0 | 0 | 1 |
[70] † Phoberodon arctirostris Last Modified in 01/10/23 | 137 | 148 | 146 | 0 | 2 | 0 | 0 | 1 |
[71] † Prosqualodon davidis Last Modified in 01/10/23 | 104 | 181 | 176 | 0 | 5 | 0 | 0 | 1 |
[72] † OU 21798 Last Modified in 01/10/23 | 82 | 211 | 203 | 0 | 0 | 0 | 0 | 1 |
[73] † Inticetus vertizi Last Modified in 01/10/23 | 145 | 145 | 140 | 0 | 0 | 0 | 0 | 1 |
[74] † Papahu taitapu Last Modified in 01/10/23 | 148 | 137 | 136 | 0 | 1 | 0 | 0 | 1 |
[75] † Waipatia hectori Last Modified in 01/10/23 | 238 | 46 | 45 | 0 | 2 | 0 | 0 | 1 |
[76] † Awamokoa tokarahi Last Modified in 01/10/23 | 208 | 79 | 77 | 0 | 0 | 0 | 0 | 1 |
[77] † Waipatia maerewhenua Last Modified in 01/10/23 | 80 | 202 | 201 | 0 | 4 | 0 | 0 | 1 |
[78] † Otekaikea marplesi Last Modified in 01/10/23 | 123 | 162 | 161 | 0 | 1 | 0 | 0 | 1 |
[79] † Otekaikea huata Last Modified in 01/10/23 | 117 | 168 | 167 | 0 | 1 | 0 | 0 | 1 |
[80] † ZMT-73 Last Modified in 01/10/23 | 241 | 44 | 44 | 0 | 0 | 0 | 0 | 1 |
[81] † Aondelphis talen Last Modified in 01/10/23 | 219 | 64 | 64 | 0 | 2 | 0 | 0 | 1 |
[82] † Notocetus vanbenedeni Last Modified in 01/10/23 | 58 | 225 | 223 | 0 | 4 | 0 | 0 | 1 |
[83] Squalodelphis fabianii Last Modified in 01/10/23 | 149 | 137 | 135 | 0 | 1 | 0 | 0 | 1 |
[84] † Zarhachis flagellator Last Modified in 01/10/23 | 72 | 213 | 208 | 0 | 5 | 0 | 0 | 1 |
[85] † Pomatodelphis inaequalis Last Modified in 01/10/23 | 113 | 166 | 166 | 0 | 6 | 0 | 0 | 1 |
[86] Platanista gangetica Last Modified in 01/10/23 | 16 | 268 | 261 | 0 | 8 | 0 | 0 | 1 |
[87] † Phocageneus venustus Last Modified in 01/10/23 | 250 | 36 | 35 | 0 | 0 | 0 | 0 | 1 |
[88] † OU 22670 Last Modified in 01/10/23 | 230 | 57 | 55 | 0 | 0 | 0 | 0 | 1 |
[89] † Arktocara yakataga Last Modified in 01/10/23 | 185 | 96 | 96 | 0 | 4 | 0 | 0 | 1 |
[90] † Dilophodelphis fordycei Last Modified in 01/10/23 | 164 | 121 | 121 | 0 | 0 | 0 | 0 | 1 |
[91] † Araeodelphis natator Last Modified in 01/10/23 | 205 | 81 | 80 | 0 | 0 | 0 | 0 | 1 |
[92] † Huaridelphis raimondii Last Modified in 01/10/23 | 118 | 168 | 166 | 0 | 1 | 0 | 0 | 1 |
[93] † Allodelphis pratti Last Modified in 01/10/23 | 150 | 132 | 132 | 0 | 3 | 0 | 0 | 1 |
[94] Ninjadelphis ujiharai Last Modified in 01/10/23 | 157 | 129 | 128 | 0 | 0 | 0 | 0 | 1 |
[95] † Zarhinocetus errabundus Last Modified in 01/10/23 | 113 | 170 | 170 | 0 | 2 | 0 | 0 | 1 |
[96] † Goedertius oregonensis Last Modified in 01/10/23 | 159 | 123 | 123 | 0 | 3 | 0 | 0 | 1 |
[97] † MUSM 1395/3896/3897/1484 Last Modified in 01/10/23 | 109 | 184 | 175 | 0 | 1 | 0 | 0 | 1 |
[98] † Medocinia tetragorhina Last Modified in 01/10/23 | 201 | 84 | 84 | 0 | 0 | 0 | 0 | 1 |
[99] † Macrosqualodelphis ukupachai Last Modified in 01/10/23 | 145 | 140 | 138 | 0 | 2 | 0 | 0 | 1 |
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Total project views | 6168 | |
Project overview | 342 | |
Matrix views | 228 | Matrix landing page (212 views); matrix (16 views); |
Media views | 1369 | Media search (648 views); M849325 (133 views); M849326 (121 views); M849327 (114 views); M849328 (117 views); M849329 (116 views); M849330 (120 views); |
Documents list | 152 | |
Taxon list | 2325 | |
Specimen list | 1182 | |
Views for media list | 404 | |
Bibliography | 166 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 4 | |
Matrix downloads | 3 | matrix (3 downloads); |
Project downloads | 1 |