Redescription of a small Caviidae (Rodentia: Hystricognathi) from the Neogene of northwestern Argentina and its systematic implications
Author
Jaén, María Carolina Madozzo
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Superior de Correlación Geológica (INSUGEO), Facultad de Ciencias Naturales e Instituto Miguel Lillo, Universidad Nacional de Tucumán, Miguel Lillo 205, T 4000 JFE, San Miguel de Tucumán (Argentina) cmadozzo @ csnat. unt. edu. ar (corresponding author)
cmadozzo@csnat.unt.edu.ar
Author
Pérez, María Encarnación
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Museo Paleontológico Egidio Feruglio (MEF), Avenida Fontana 140, Trelew, U 9100 GYO Chubut (Argentina) mperez @ mef. org. ar
mperez@mef.org.ar
text
Comptes Rendus Palevol
2024
2024-08-08
23
20
269
292
http://dx.doi.org/10.5852/cr-palevol2024v23a20
journal article
305519
10.5852/cr-palevol2024v23a20
7670d934-3421-4044-9c4f-f3ed409dba77
1777-571X
13269380
urn:lsid:zoobank.org:pub:15C1CD83-2D0A-42FE-B630-B322F93E799D
TABLE 1. — Compared measurements (in mm) of skull and dentary of Orthomyctera rigens (Ameghino,1888) and Orocavia andina n. comb. Abbreviations: Bw, braincase width; Dl, diastema length; m2l, dorsoventral length at the level of m2 (excluding molariforms); MAEw, external auditory meatus width; MFl, dorsoventral length at the level of the mentonian foramen; p4l, dorsoventral length at the level of p4 (excluding molariforms); Pl, palate length (from the P4 level to the apex of the mesopterigoid fossa); PwM3, palate width at M3 level (measured in the anterior lobe without including teeth); PwP4, palate width at P4 level (measured in the anterior lobe without including teeth); Rl, rostrum length (to nasal-frontal suture); Rw, rostrum width (between nasal-frontal-prmx suture); Iw, interorbital width; Sl, skull length (from nasal-frontal suture); Stl, skull total length (dorsal view). *, average measurements. | Orthomyctera | Caviidae | | | | | | | | | | | | |
|---|
| rigens | indet. | | | | | Orocavia andina n. comb. | | | | |
|---|
| Mesures | MACN-A 1661 (holotype) | MACN-A 1662 | MACN-Pv 8350 (holotype) | FHNM-P 14464 | FHNM-P 14370 | MACN-Pv 8351 | MACN-Pv 8399 | MACN-Pv 8401 | FHNM- P 1094 | MACN-Pv 8300 | MACN-Pv 8411 | MACN-Pv 8412 | MACN-Pv 8414 | MACN-Pv 8349 |
|---|
| Stl | *55.54 | – | *53.73 | – | *54.26 | – | – | – | – | – | – | – | – | – |
|---|
| Sl | – | – | 36.06 | – | *39.93 | 36.61 | 37.23 | – | – | – | – | – | – | – |
|---|
| Dl | *12.93 | – | 14.47 | – | – | – | – | – | – | – | – | – | – | – |
|---|
| Rl | – | – | 19.68 | – | *14.19 | – | – | – | – | – | – | – | – | – |
|---|
| Rw | – | – | 8.71 | – | *11.58 | 9.71 | 9.75 | – | – | – | – | – | – | – |
|---|
| Iw | – | – | 11.57 | – | *10.51 | 12.89 | 13.11 | – | – | – | – | – | – | – |
|---|
| Bw | – | – | 24.80 | – | >25.21 | 25.88 | – | 24.73 | – | – | – | – | – | – |
|---|
| PwP4 | 1.210 | – | 1.04 | 2.08 | 1.26 | 1.61 | 1.39 | 1.27 | – | – | – | – | – | – |
|---|
| PwM3 | – | – | 6.08 | 7.77 | 7.82 | 7.68 | 8.96 | 6.07 | – | – | – | – | – | – |
|---|
| MAEw | – | – | 19.71 | – | – | 22.77 | – | – | – | – | – | – | – | – |
|---|
| Pl | 11.00 | – | 8.17 | 9.03 | 9.85 | 8.64 | 9.92 | 8.12 | – | – | – | – | – | – |
|---|
| MFl | – | 4.51 | 4.16 | – | – | – | – | – | 4.50 | – | – | 3.61 | 4.49 | 4.61 |
|---|
| p4l | – | 8.25 | – | – | – | – | – | – | 6.85 | 4.63 | – | 5.60 | 7.23 | – |
|---|
| m2l | – | – | 7.24 | – | – | – | – | – | 7.63 | 7.07 | – | 7.38 | 7.91 | – |
|---|