Published May 2, 2022
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TABLE 2 in Detecting morphological gaps in tooth outlines of a Pachyrukhinae (Hegetotheriidae, Notoungulata) lineage: systematic and palaeobiogeographical significance of the records from Northwestern Argentina
Authors/Creators
- 1. Instituto de Estratigrafía y Geología Sedimentaria Global (IESGLO-CONICET), Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán, Miguel Lillo 205, T 4000 JFE San Miguel de Tucumán (Argentina) and Cátedra de Paleontología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Catamarca, Avenida Belgrano 300, K 4700 AAP, San Fernando del Valle de Catamarca, Catamarca (Argentina) and Instituto Superior de Correlación Geológica (INSUGEO-CONICET), Universidad Nacional de Tucumán, Avenida Presidente Perón s / n, T 4105 XAY, Horco Molle, Tucumán (Argentina)
- 2. Instituto de Ecorregiones Andinas (INECOA), Instituto de Geología y Minería, Universidad Nacional de Jujuy, CONICET, Avenida Bolivia 1661, Y 4600 GNE, San Salvador de Jujuy (Argentina
- 3. Instituto de Investigaciones Arqueológicas y Paleontológicas del Cuaternario Pampeano (INCUAPA-CONICET), Universidad Nacional del Centro de la provincia de Buenos Aires, Avenida del Valle 5737, B 7400 JWI, Olavarría (Argentina
- 4. Instituto Superior de Correlación Geológica (INSUGEO-CONICET), Universidad Nacional de Tucumán, Avenida Presidente Perón s / n, T 4105 XAY, Horco Molle, Tucumán (Argentina
Description
TABLE 2. — Clusters and morphological gaps of the upper dentition. Principal components scores (resulting from EFA and PCA) retained for statistical procedures, clustering algorithms used to determine the optimal number of groups under gap statistic methods (K-means, Ward, and centroid indices), Shapiro-Wilk test values for each cluster (α = 0.05), and tolerance regions (γ = 0.05; β = 0.1). Note that the overlap is calculated using the upper limit of Cluster A and the lower limit of Cluster B on their probability distributions along the canonical axis resulting from the LDA. Groups without overlap are highlighted in bold font, providing statistical evidence for the existence of a morphological gap (Fig. 5).
| Morphological gaps data | M1 | M2 | M3 | UMM | P2 | P3 | P4 | UPM |
|---|---|---|---|---|---|---|---|---|
| PC scores | PC1-8 | PC1-8 | PC1-8 | PC1-9 | PC1-7 | PC1-8 | PC1-7 | PC1-8 |
| K-means index (N clusters) | –0.55 (2) | –0.37 (2) | –0.87 (2) | –0.51 (2) | –0.56 (2) | –0.61 (2) | –0.47 (2) | –0.56 (2) |
| Ward index (N clusters) | –0.60 (2) | –0.25 (2) | –0.86 (2) | –0.49 (2) | –0.47 (2) | –0.18 (2) | –0.49 (2) | –0.46 (2) |
| Centroid index (N clusters) | –0.86 (2) | –0.68 (2) | –1.16 (2) | –0.58 (2) | –0.69 (2) | –1.06 (2) | –1.07 (2) | –0.54 (2) |
| Cluster A (W / p-value) | 0.96 / 0.82 | 0.94 / 0.37 | 0.88 / 0.02 | 0.89 / 0.06 | 0.94 / 0.36 | 0.97 / 0.89 | 0.91 / 0.10 | 0.94 / 0.39 |
| Cluster B (W / p-value) | 0.95 / 0.35 | 0.93 / 0.20 | 0.94 / 0.55 | 0.95 / 0.62 | 0.95 / 0.66 | 0.95 / 0.53 | 0.94 / 0.28 | 0.95 / 0.71 |
| Upper limit (Cluster A) | 0.37 | 0.32 | – | 0.25 | –0.40 | 0.08 | 0.23 | –1.14 |
| Lower limit (Cluster B) | –0.18 | –0.21 | – | –0.54 | –0.76 | 0.04 | 0.36 | –0.22 |
Notes
Published as part of Armella, Matías A., Ercoli, Marcos D., Bonini, Ricardo A. & García-López, Daniel A., 2022, Detecting morphological gaps in tooth outlines of a Pachyrukhinae (Hegetotheriidae, Notoungulata) lineage: systematic and palaeobiogeographical significance of the records from Northwestern Argentina, pp. 332 in Comptes Rendus Palevol 21 (16) on page 332, DOI: 10.5852/cr-palevol2022v21a16, http://zenodo.org/record/20746332
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- Is part of
- Journal article: 10.5852/cr-palevol2022v21a16 (DOI)
- Journal article: urn:lsid:plazi.org:pub:C43E026CFF9EFFB39A45FD62BC6AFFFD (LSID)
- Journal article: http://publication.plazi.org/id/C43E026CFF9EFFB39A45FD62BC6AFFFD (URL)
- Journal article: http://zenodo.org/record/20746332 (URL)
- Journal article: http://zoobank.org/urn:lsid:zoobank.org:pub:1819D600-1B6E-49A2-A016-44C9119C6AA7 (URL)