Protypotherium claudum Ameghino, 1889
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https://doi.org/ 10.1093/zoolinnean/zlad043 |
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https://doi.org/10.5281/zenodo.8426265 |
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https://treatment.plazi.org/id/03B17549-E920-476B-9EFD-FA19FABEFD94 |
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Plazi |
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Protypotherium claudum Ameghino, 1889 |
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Protypotherium claudum Ameghino, 1889
( Fig. 8B–D View Figure 8 ; Supporting Information, Table S2)
1889 Protypotherium claudum Ameghino , p. 480 (original description), pl. 14, fig. 22.
Holotype: MACN-A 551 ( Fig. 8B View Figure 8 ), right mandibular fragment with p2 (alveolus)–p3–m2 (see Fernández et al. 2018), Early– Middle Miocene , SCF, Santa Cruz Province ( Argentina).
Referred materials: MLP 73-VII-6-4 d (ex Interatheriinae indet; Fig. 8C View Figure 8 ), less mandibular fragment with p2 (broken)–m2 (trigonid), and MPEF-PV 1394 ( Fig. 8D View Figure 8 ), incomplete mandible with less i1–dp1–p2–4, and right i1 and dp1–p2–m3.
Extended diagnosis: Protypotherium claudum differs from Pr. compressidens , Pr. antiquum , Pr. australe , Pr. praerutilum , Pr. columnifer , Pr. minutum , and Pr. colloncurensis by p2–3 without the entoflexid and with the ectoflexid wider and slightly more mesially placed, and p4–m3 with shallower entoflexid; from Pr. australe and Pr. distinctum by having a smaller size; from Pr. compressidens by having relatively wider lower cheek teeth; from Pr. antiquum by the talonid of m3 without labial groove; from Pr. colloncurensis and Pr. columnifer by the talonid of p2–4 sub-triangular in outline; and from Pr. columnifer by the talonid of p4 narrower than the trigonid.
Geographic and stratigraphic provenance: Santa Cruz Province ( Argentina), SCF, Early–Middle Miocene, Santacrucian SALMA; Río Negro Province ( Argentina), Collón Curá Fm., Middle Miocene, Colloncuran SALMA.
Measurements: Supporting Information, Table S2.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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