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Notiomastodon platensis Ameghino 1888

PaleoDB taxon number: 373291

Alternative combinations: Mastodon platensis, Stegomastodon platensis

Synonyms: Haplomastodon (Aleamastodon) guayasensis Hoffstetter 1952 (no. 247636), Haplomastodon chimborazi Proaño 1922 (no. 247634), Haplomastodon waringi Holland 1920 (no. 205605), Mastodon bonaerensis Moreno 1888 (no. 364272), Mastodon superbus Ameghino 1888 (no. 374107), Stegomastodon superbus Ameghino 1888 (no. 374108), Stegomastodon waringi Holland 1920 (no. 252389)

Belongs to Notiomastodon according to D. Mothé et al. 2012

Sister taxon: Haplomastodon (Aleamastodon)

Average measurements (in mm): M3 241.4 x 107.7, Cranium, Choanal width width 58.3, Cranium, Condylar length length 227.0, Cranium, Distance between anterior plane of molars and palatine spine, in sagitt length 168.0, Cranium, Distance between anterior-inferior margin of premaxilla and pterygoid a length 215.0, Cranium, Distance between highest point of crista temporalis and alveolar margin length 371.7, Cranium, Distance between highest point of crista temporalis and anterior-inferi length 445.0, Cranium, Distance between palatine spine and anterior margin of foramen magnum length 326.0, Cranium, Distance between posterior margin of occipital condyles and pterygoid a length 395.0, Cranium, Distance between pterygoid apophyses of sphenoid and anterior margin of length 246.0, Cranium, Distance between tip of frontal zygomatic process and pterygoid apophys length 210.2, Cranium, Distance between ventral margin of orbit and anterior-inferior margin o length 252.8, Cranium, Distance between vertex and pterygoid apophysis length 371.2, Cranium, Distance between vertex and upper margin of nuchal ligament fossa length 126.0, Cranium, Distance between vertex and upper plane of nasal cavities length 174.4, Cranium, Length of left dentary series length 89.0, Cranium, Length of nuchal ligament fossa length 130.0, Cranium, Length of right dentary series length 88.0, Cranium, Max height of nasal cavities length 163.0, Cranium, Max length in sagittal plane length 290.0, Cranium, Max length in sagittal plane[ length 980.0, Cranium, Max longitudinal diameter of premaxillae diameter 71.5, Cranium, Max longitudinal diameter of temporal fossa at level of jugal arcade diameter 112.5, Cranium, Max orbital diameter diameter 190.0, Cranium, Max suborbital width width 270.9, Cranium, Max width of braincase width 775.0, Cranium, Max width of maxilla at apex width 140.0, Cranium, Max width of nasal cavity width 121.5, Cranium, Min width between temporal cristae width 179.1, Cranium, Nasal process width width 71.8, Cranium, Premaxillary length in sagittal plane length 284.3, Cranium, Premaxillary width at level of interorbital orifice width 153.5, Cranium, Ventral premaxillary width width 130.5, Cranium, Ventral width between orbits width 214.0, Cranium, Width between internal margins of mandibular articular fossae width 158.7, Cranium, Width between anterior-internal margin of molars width 101.8, Cranium, Width between external auditory pseudomeatuses width 660.0, Cranium, Width between external margins of mandibular articular fossae width 540.0, Cranium, Width between external-interior margins of occipital condyles width 80.0, Cranium, Width between lateral-external margins of occipital condyles width 227.0, Cranium, Width between posterior-internal margin of molars width 68.4, Cranium, Width of nuchal ligament cavity width 83.0, Distal upper incisor diameter 57.9, Humerus 795.0 x 282.0, Lower D2 28.6 x 28.5, Lower D3 54.0 x 37.5, Lower D4 61.5 x 41.3, Lower M1 93.8 x 60.7, Lower M2 126.4 x 81.9, Lower M3 193.5 x 83.0, Lower m2 146.3 x 76.9, Lower m3 length 194.6, Mandibular ramus length 197.0, Proximal upper incisor diameter 123.0, Radius 610.0 x 139.8, Tibia 600.0 x 205.0, Ulna 691.0 x 247.6, Upper ?D3 60.5 x 41.0, Upper D2 31.0 x 27.0, Upper D3 53.3 x 40.4, Upper D4 61.5 x 47.0, Upper DP3 62.7 x 38.6, Upper M1 92.8 x 68.3, Upper M2 127.4 x 85.0, Upper M3 201.2 x 89.4, Upper dM2 length 89.1, Upper dM3 length 107.6