APPENDIX 1.
List of sparassodont material examined in this study. Specimens listed in parenthesis represent material that could not be examined firsthand and were measured based on previously published figures or photographs provided by colleagues.
| Taxon | Specimens | References |
| Acrocyon sectorius | MACN-A 9364 | -- |
| Acyon myctoderos | UATF-V-000926, UF 29621-29641 | -- |
| Allqokirus australis | (MNHC 8267) | Muizon et al. (2018) |
| Arctodictis sinclairi | AMNH 27909 | -- |
| Australohyaena antiquua | FMNH P13800 | -- |
| Borhyaena macrodonta | MACN-A 52-390 | -- |
| Borhyaena tuberata | MACN-A 6303, MACN-A 6404 | -- |
| Borhyaenidium musteloides | MLP 57-XI-10-153 | -- |
| Borhyaenidium riggsi | FMNH P14409 | -- |
| Callistoe vincei | (PVL 4187) | Babot pers. comm. |
| Chasicostylus castroi | MLP 57-XI-9-2 | Marshall (1981) |
| Cladosictis centralis | (MPEF-PV 5854) | Goin et al. (2007) |
| Cladosictis patagonica | MACN-A 5950; MACN-A 6280 | -- |
| Fredszalaya hunteri | (UF 175201) | Shockey and Anaya (2008) |
| Hondadelphys fieldsi | UCMP 37960 | -- |
| La Cancha sparassodont | (MPEF-PV 4345) | Goin et al. (2010), Zimicz (2012) |
| Lumbrera gen. et sp. nov. 1 | (PVL 5719) | Powell et al. (2011) |
| Lycopsis longirostrus | UCMP 38061 | -- |
| Lycopsis padillai | (MUN-STRI 34413) | Suarez et al. (2016) |
| Lycopsis torresi | MLP 11-113 | -- |
| Lycopsis viverensis | (MMH 87-6-1) | Forasiepi et al. (2003) |
| Mayulestes ferox | (MNHC 1249) | Muizon (1998) |
| Patagosmilus goini | (MLP 07-VII-1-1) | Forasiepi and Carlini (2010) |
| Patene coluapiensis | AMNH 28448 | -- |
| Patene simpsoni | MNRJ 1331-V | -- |
| Pharsophorus tenax | AC 3304 | -- |
| Proborhyaena gigantea | AMNH 29576 | -- |
| Procladosictis anomala | MACN-A 10327 | Marshall (1981) |
| Prothylacynus patagonicus | MACN-A 707, MACN-A 5931 | -- |
| Pseudolycopsis cabrerai | MLP 57-XI-9-1 | -- |
| Pseudonotictis chubutensis | (LIEB-PV 10001) | Martin and Tejedor (2007) |
| Pseudonotictis pusillus | MLP 11-26 | Marshall (1981) |
| Pseudothylacynus rectus | AMNH 29728, (MLP 92-X-10-7) | Goin et al. (2007) |
| cf. Sallacyon | UATF-V-000165 | -- |
| Sallacyon hoffstetteri | (MNHN SAL 92) | Hoffstetter and Petter (1983) |
| Sipalocyon externa | MACN 52-382, (MPEF-PV 4545) | Goin et al. (2007), Marshall (1981) |
| Sipalocyon gracilis | AMNH 9254, MACN-A 692, YPM-VPPU 15373 | -- |
| Stylocynus paranensis | MACN-A 5893 | -- |
| Thylacosmilus atrox | (MMP 1443) | Forasiepi pers. comm. |
| Gen. et sp. nov. 1 | AMNH 28439 | -- |
| Gen. et sp. nov. 2 | AMNH 28413 | -- |
| Gen. et sp. nov. 3 | AMNH 28415, AMNH 28416 | -- |
APPENDIX 2.
R script used to produce analyses in.txt format. The file is structured to be read as an R script file or an.Rmd file in Rmarkdown. (Appendices available for download in zipped file.)
APPENDIX 3.
Formatted.html printout of the R script, showing the results of all statistical analyses performed as part of this study. (Appendices available for download in zipped file.)
APPENDIX 4.
Geometric morphometric data, a TPS file in.txt format. (Appendices available for download in zipped file.)
APPENDIX 5.
Classifier data (taxon, tooth locus, etc.) for use in the R script in.csv format. (Appendices available for download in zipped file.)
