Project 4893: C. Suarez, A. M. Forasiepi, M. J. Babot, T. Shinmura, J. Luque, R. D. Vanegas, E. A. Cadena, F. J. Goin. 2023. A sabre-tooth predator from the Neotropics: Cranial morphology of Anachlysictis gracilis Goin, 1997
(Metatheria, Thylacosmilidae), based on new specimens from La Venta (Middle Miocene, Colombia). Geodiversitas. 45 (18):497-572.
Abstract
The fossil metatherian assemblage from La Venta (Middle Miocene, Colombia) is one of the most diverse in South America, and it is critical to understand the Neogene radiation of this group in this continent. La Venta contains the northernmost record of Thylacosmilidae Riggs, 1933 (Metatheria, Sparassodonta): Anachlysictis gracilis Goin, 1997, the first thylacosmilid species named for the Neotropics. This taxon was described mostly based on mandibular remains. Recent fieldwork and work in collections led to the discovery of new materials for this species, including the most complete skeleton ever found for this Sparassodonta Ameghino, 1894. Here, we present a detailed description of the cranial osteology and dentition of A. gracilis, which elucidates anatomical aspects previously inferred but hitherto unconfirmed. We investigate the phylogeny, and ecomorphological parameters of this taxon (diet and body mass) to set the evolutionary context of the species, understand its paleobiology, and evaluate palaeoecological implications. Additionally, we revise the phylogeny of the thylacosmilids, recovering the traditional classification of the group, differentiated from the proborhyaenids and borhyaenids. This work also proposes a new reconstruction of the external morphology of the head of A. gracilis based on 3D scans of the new referred materials.Read the article »
Article DOI: 10.5252/geodiversitas2023v45a18
Project DOI: 10.7934/P4893, http://dx.doi.org/10.7934/P4893
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 12118 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 403 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 907 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:312/91 |
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MorphoBank Project 4893
MorphoBank Project 4893
- Creation Date:
21 September 2023 - Publication Date:
14 October 2023 - Project views: 1920
- Matrix downloads: 3
Authors' Institutions
- University of Cambridge
- Museo de La Plata
- Universidad Nacional de la Plata (UNLP)
- Field Museum of Natural History
- Smithsonian Tropical Research Institute
- Universidad del Rosario
- Museo de Historia Natural la Tatacoa
- Ashoro Museum of Paleontology
- Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA)
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Catalina Suarez Project Administrator | 52 | 1 | 1 | 403 | 0 | 0 | 12118 (11682, 0, 436) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29498' (52 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † prokennalestes Last Modified in 09/21/23 | 261 | 137 | 136 | 0 | 6 | 0 | 0 | 1 |
[2] † Asioryctes nemegtensis Last Modified in 09/21/23 | 148 | 240 | 240 | 0 | 15 | 0 | 0 | 1 |
[3] † Maelestes gobiensis Last Modified in 09/21/23 | 177 | 214 | 214 | 0 | 12 | 0 | 0 | 1 |
[4] † Holoclemensia texana Last Modified in 09/21/23 | 334 | 69 | 69 | 0 | 0 | 0 | 0 | 1 |
[5] † Deltatheroides cretacicus Last Modified in 09/21/23 | 331 | 70 | 69 | 0 | 3 | 0 | 0 | 1 |
[6] † Deltatheridium pretrituberculare Last Modified in 09/21/23 | 177 | 222 | 218 | 0 | 8 | 0 | 0 | 1 |
[7] † Kokopellia juddi Last Modified in 09/21/23 | 299 | 105 | 103 | 0 | 0 | 0 | 0 | 1 |
[8] † Eodelphis browni Last Modified in 09/21/23 | 242 | 163 | 159 | 0 | 2 | 0 | 0 | 1 |
[9] † Didelphodon vorax Last Modified in 09/21/23 | 158 | 245 | 242 | 0 | 3 | 0 | 0 | 1 |
[10] † pediomyidae Last Modified in 09/21/23 | 249 | 161 | 153 | 0 | 1 | 0 | 0 | 1 |
[11] † Alphadon spp. Last Modified in 09/21/23 | 284 | 128 | 119 | 0 | 0 | 0 | 0 | 1 |
[12] † Asiatherium reshetovi Last Modified in 09/21/23 | 210 | 193 | 192 | 0 | 1 | 0 | 0 | 1 |
[13] † Herpetotherium fugax Last Modified in 09/21/23 | 98 | 313 | 302 | 0 | 3 | 0 | 0 | 1 |
[14] † Mimoperadectes spp. Last Modified in 09/21/23 | 220 | 192 | 181 | 0 | 2 | 0 | 0 | 1 |
[15] Didelphis albiventris Last Modified in 09/21/23 | 1 | 424 | 397 | 0 | 5 | 0 | 0 | 1 |
[16] Metachirus nudicaudatus Last Modified in 09/21/23 | 23 | 380 | 375 | 0 | 5 | 0 | 0 | 1 |
[17] Monodelphis spp. Last Modified in 09/21/23 | 1 | 419 | 398 | 0 | 4 | 0 | 0 | 1 |
[18] Dromiciops gliroides Last Modified in 09/21/23 | 7 | 394 | 388 | 0 | 8 | 0 | 0 | 1 |
[19] Dasyurus spp. Last Modified in 09/21/23 | 7 | 411 | 388 | 0 | 8 | 0 | 0 | 1 |
[20] Sminthopsis crassicaudata Last Modified in 09/21/23 | 8 | 395 | 390 | 0 | 5 | 0 | 0 | 1 |
[21] † Thylacinus cynocephalus Last Modified in 09/21/23 | 6 | 385 | 378 | 0 | 19 | 0 | 0 | 1 |
[22] † Pucadelphys andinus Last Modified in 09/21/23 | 14 | 402 | 385 | 0 | 4 | 0 | 0 | 1 |
[23] † Andinodelphys cochabambensis Last Modified in 09/21/23 | 24 | 384 | 376 | 0 | 3 | 0 | 0 | 1 |
[24] † Mayulestes ferox Last Modified in 09/21/23 | 41 | 359 | 359 | 0 | 3 | 0 | 0 | 1 |
[25] † Allqokirus australis Last Modified in 09/21/23 | 163 | 237 | 237 | 0 | 3 | 0 | 0 | 1 |
[26] † Patene simpsoni Last Modified in 09/21/23 | 301 | 103 | 101 | 0 | 0 | 0 | 0 | 1 |
[27] † Hondadelphys fieldsi Last Modified in 09/21/23 | 193 | 208 | 208 | 0 | 2 | 0 | 0 | 1 |
[28] † Stylocynus paranensis Last Modified in 09/21/23 | 308 | 96 | 93 | 0 | 0 | 0 | 0 | 1 |
[29] † UF 27881 Last Modified in 09/21/23 | 349 | 55 | 51 | 0 | 2 | 0 | 0 | 1 |
[30] † Sallacyon hoffstetteri Last Modified in 09/21/23 | 247 | 150 | 149 | 0 | 7 | 0 | 0 | 1 |
[31] † Notogale mitis Last Modified in 09/21/23 | 236 | 160 | 157 | 0 | 10 | 0 | 0 | 1 |
[32] † Sipalocyon spp. Last Modified in 09/21/23 | 54 | 347 | 338 | 0 | 10 | 0 | 0 | 1 |
[33] † Acyon myctoderos Last Modified in 09/21/23 | 183 | 218 | 213 | 0 | 7 | 0 | 0 | 1 |
[34] † Cladosictis patagonica Last Modified in 09/21/23 | 44 | 368 | 349 | 0 | 10 | 0 | 0 | 1 |
[35] † Lycopsis longirostrus Last Modified in 09/21/23 | 127 | 270 | 265 | 0 | 11 | 0 | 0 | 1 |
[36] † Lycopsis padillai Last Modified in 09/21/23 | 366 | 35 | 35 | 0 | 2 | 0 | 0 | 1 |
[37] † Lycopsis torresi Last Modified in 09/21/23 | 306 | 93 | 91 | 0 | 6 | 0 | 0 | 1 |
[38] † Lycopsis viverensis Last Modified in 09/21/23 | 307 | 91 | 90 | 0 | 6 | 0 | 0 | 1 |
[39] † Prothylacynus patagonicus Last Modified in 09/21/23 | 44 | 350 | 343 | 0 | 16 | 0 | 0 | 1 |
[40] † Pharsophorus lacerans Last Modified in 09/21/23 | 243 | 154 | 152 | 0 | 8 | 0 | 0 | 1 |
[41] † Borhyaena tuberata Last Modified in 09/21/23 | 59 | 328 | 319 | 0 | 25 | 0 | 0 | 1 |
[42] † Arctodictis munizi Last Modified in 09/21/23 | 179 | 204 | 204 | 0 | 20 | 0 | 0 | 1 |
[43] † Arctodictis sinclairi Last Modified in 09/21/23 | 23 | 355 | 355 | 0 | 25 | 0 | 0 | 1 |
[44] † Australohyaena antiquua Last Modified in 09/21/23 | 172 | 209 | 208 | 0 | 22 | 0 | 0 | 1 |
[45] † Callistoe vincei Last Modified in 09/21/23 | 98 | 294 | 291 | 0 | 14 | 0 | 0 | 1 |
[46] † Paraborhyaena boliviana Last Modified in 09/21/23 | 270 | 127 | 127 | 0 | 6 | 0 | 0 | 1 |
[47] † Patagosmilus goini Last Modified in 09/21/23 | 246 | 139 | 136 | 0 | 21 | 0 | 0 | 1 |
[48] † Thylacosmilus atrox Last Modified in 09/21/23 | 83 | 286 | 281 | 0 | 39 | 0 | 0 | 1 |
[49] † Proborhyaena gigantea Last Modified in 09/21/23 | 324 | 74 | 73 | 0 | 6 | 0 | 0 | 1 |
[50] † Eomakhaira molossus Last Modified in 09/21/23 | 319 | 85 | 79 | 0 | 5 | 0 | 0 | 1 |
[51] † IGM 251108 Last Modified in 09/21/23 | 331 | 65 | 65 | 0 | 7 | 0 | 0 | 1 |
[52] † Anachlysictis gracilis Last Modified in 09/21/23 | 203 | 176 | 174 | 0 | 26 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 1920 | |
Project overview | 168 | |
Matrix views | 107 | Matrix landing page (100 views); Suarez_etal_2023_Anachlysictis_Geodiversitas (7 views); |
Media views | 372 | Media search (322 views); M894496 (50 views); |
Bibliography | 78 | |
Views for media list | 111 | |
Specimen list | 182 | |
Taxon list | 902 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 3 | |
Matrix downloads | 3 | Suarez_etal_2023_Anachlysictis_Geodiversitas (3 downloads); |