Table 2 Measurements (in cm/cm3) illustrated in Fig. 2
Cranial Measurement—Estimation | Glyptodon munizi | Doedicurus clavicaudatus | Neosclerocalyptus pseudornatus | Neosclerocalyptus ornatus | Neosclerocalyptus gouldi | Panochthus intermedius |
|---|---|---|---|---|---|---|
PIMUZ A/V 461 | PIMUZ A/V 4148 | PIMUZ A/V 439 | PIMUZ A/V 447 | ZMK 77/1888 | ZMK 66/1885 | |
Maximum Cranial Length (MCL) | 31 | 38.0* | 32.7 | 33.4 | 28.1 | 41.5 |
Maximum Cranial Width (MCW) | 28.5 | 36.0* | 19.0 | 22.0* | 22.5 | 30.5 |
Maximum Cranial Height (at the level of Mf4) (MCH) | 12 | – | 15.0 | 17.4 | 17.3 | 21.9 |
Maximum Narial Opening Width (MNOW) | 12 | – | 18.0 | 17.2 | 14.6 | 9.2 |
Maximum Narial Opening Height (MNOH) | 6 | – | 6.0 | 7.2 | 10.8 | 6.5 |
Length of the Postorbital Constriction in dorsal view (LPC) | 6 | – | 5.0 | 7.0 | 8.3 | 9.2 |
Upper Toothrow Length (UTL) | 20.5 | – | 17.0 | 18.2 | 18.5 | 22.5 |
Length of the Palate (LP) | 23.5 | – | 20.5 | 21.0* | 23* | 30.6 |
Width of the Palate at the Level of Mf1 (WPLM) | 5.5 | – | 3.6 | 3.9 | 4.0* | 4.7 |
Maximum Foramen Magnum Width (MFMW) | 4.5 | 3.8 | 2.8 | 7.2 | 3.4 | 5.5 |
Distance between labial side of Mf4 and Infraorbital foramina in ventral view (DMI) | 3.3 | – | 2.0 | - | 1.9 | 3.6 |
Maximum Occipital Condyles width (MOC) | 3.2 | 3.9 | 2.4 | 3.0 | 2.3 | 2.9 |
Angle between the Supraoccipital Plane (SP) and the toothrow plane (TP) | 40° | – | 55° | 45° | 60° | 50° |
Angle between the Naso-Frontal Plane (NFP) and the Parieto-Occipital Plane (POP) | 170° | – | 180° | 170° | 155° | 145° |
Endocranial Measurement—Estimation | PIMUZ A/V 461 | PIMUZ A/V 4148 | PIMUZ A/V 439 | - | - | - |
|---|---|---|---|---|---|---|
Maximum Braincase endocast anteroposterior Length (MBL) | 10.4 | 12.8 | 10.0 | - | - | - |
Maximum Braincase endocast mediolateral Width (MBW) | 8.1 | 8.5 | 5.4 | - | - | - |
Braincase endocast volume (excluding canals) | 236.6 | 255.7 | 99.0 | - | - | - |
Relative olfactory bulb volume | 6.0% | 8.0% | 2.0% | - | - | - |
Relative cerebrum volume | 77.0% | 80.0% | 81.0% | - | - | - |
Relative cerebellum volume | 17.0% | 12.0% | 17.0% | - | - | - |
Angle between Anterior semicircular canal and Posterior semicircular canal (AAP) | 69° | 102° | 104° | - | - | - |
Length diameter of the Anterior Semicircular Canal (ASC L) | 6.6 | 9.3 | 7.1 | |||
Width diameter of the Anterior Semicircular Canal (ASC W) | 6.4 | 7.9 | 7.0 | |||
Length diameter of the Posterior Semicircular Canal (PSC L) | 7.8 | 8.7 | 7 | |||
Width diameter of the Posterior Semicircular Canal (PSC W) | 7.9 | 8.3 | 6.1 | |||
Length diameter of the Lateral Semicircular Canal (LSC L) | 6.6 | 5.6 | 7.5 | |||
Width diameter of the Lateral Semicircular Canal (LSC W) | 7.3 | 6.8 | 7.8 |
Mandibular Measurement—Estimation | PIMUZ A/V 461 | – | PIMUZ A/V 439 | PIMUZ A/V 437 | ZMK 77/1888 | ZMK 66/1885 |
|---|---|---|---|---|---|---|
Maximum Mandibular Length (MML) | 31.5 | – | 26.3 | - | 27.3 | 35.4 |
Maximum Horizontal Ramus Length (MHRL) | 26.5 | – | 16.5 | 21.0* | 21 | 30.2 |
Maximum Horizontal Ramus Height (MHRH) | 7.0 | – | 5.2 | 5.1 | 7.8 | 9.7 |
Lower Toothrow Length (LTL) | 19.5 | – | 14.0 | 19.0* | 19.8 | 21 |
Ascending Ramus Length at the level of the most posterior point of the mf6 (ARL) | 14.0 | – | 18.5 | 11.0* | 10.8 | 14.5 |
Maximum Ascending Ramus Length (MARL) | 24.3 | – | 4.6 | - | 10.8 | 15.4 |
Maximum Length of the Pre-Dentary area (MLPD) | 5.0 | – | – | - | 12 | 16 |
Distance between the most dorsal point of the Coronoid and the Condylar processes (DCC) | 3.2 | – | – | - | 4.9 | 8.2 |
Angle between the ascending Ramus plane and the lower Toothrow plane (ART) | 70° | – | 85° | 90° | 85° | 65° |