Cladistics with geometric morphometric data: The variability of the calvarium in the genus Homo
Over the last 30 years, several protocols to adapt 3D geometric morphometric data to cladistics have been developed. Strongly criticised, these protocols are only occasionally used in palaeoanthropology, despite the obvious heuristic potential of such an approach. This study tests two different prot...
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Société d'Anthropologie de Paris
2024-04-01
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| Series: | Bulletins et Mémoires de la Société d’Anthropologie de Paris |
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| Online Access: | https://journals.openedition.org/bmsap/14053 |
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| author | Margaux Simon-Maciejewski Giorgio Manzi Valéry Zeitoun Aurélien Mounier |
| author_facet | Margaux Simon-Maciejewski Giorgio Manzi Valéry Zeitoun Aurélien Mounier |
| author_sort | Margaux Simon-Maciejewski |
| collection | DOAJ |
| description | Over the last 30 years, several protocols to adapt 3D geometric morphometric data to cladistics have been developed. Strongly criticised, these protocols are only occasionally used in palaeoanthropology, despite the obvious heuristic potential of such an approach. This study tests two different protocols to analyse 23 operational taxonomic units (OTUs) representing the genera Pongo, Gorilla, Pan, Australopithecus and Homo, in order to evaluate the phylogenetic information derived from geometric morphometric data. The 23 OTUs were based on averaged Procrustes-aligned coordinates (generalised Procrustes analysis) of three landmark configurations (148, 347 and 636 landmarks) describing the calvarium morphology of 78 specimens. The first protocol used the coordinates of the principal components, obtained after a principal component analysis, as variables describing the OTUs. The second approach directly used the aligned 3D coordinates of the landmarks. These two datasets were then analysed with both the heuristic and branch-and-bound algorithms implemented in the TNT software. These analyses produced a unique cladistic tree for each dataset. Independent of the matrix used to obtain the trees, these preliminary results were phylogenetically consistent and support debated paleoanthropological hypotheses. |
| format | Article |
| id | doaj-art-6999bc91a6eb4da2841fdea28de408d2 |
| institution | Kabale University |
| issn | 1777-5469 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Société d'Anthropologie de Paris |
| record_format | Article |
| series | Bulletins et Mémoires de la Société d’Anthropologie de Paris |
| spelling | doaj-art-6999bc91a6eb4da2841fdea28de408d22025-01-30T11:27:47ZengSociété d'Anthropologie de ParisBulletins et Mémoires de la Société d’Anthropologie de Paris1777-54692024-04-013610.4000/bmsap.14053Cladistics with geometric morphometric data: The variability of the calvarium in the genus HomoMargaux Simon-MaciejewskiGiorgio ManziValéry ZeitounAurélien MounierOver the last 30 years, several protocols to adapt 3D geometric morphometric data to cladistics have been developed. Strongly criticised, these protocols are only occasionally used in palaeoanthropology, despite the obvious heuristic potential of such an approach. This study tests two different protocols to analyse 23 operational taxonomic units (OTUs) representing the genera Pongo, Gorilla, Pan, Australopithecus and Homo, in order to evaluate the phylogenetic information derived from geometric morphometric data. The 23 OTUs were based on averaged Procrustes-aligned coordinates (generalised Procrustes analysis) of three landmark configurations (148, 347 and 636 landmarks) describing the calvarium morphology of 78 specimens. The first protocol used the coordinates of the principal components, obtained after a principal component analysis, as variables describing the OTUs. The second approach directly used the aligned 3D coordinates of the landmarks. These two datasets were then analysed with both the heuristic and branch-and-bound algorithms implemented in the TNT software. These analyses produced a unique cladistic tree for each dataset. Independent of the matrix used to obtain the trees, these preliminary results were phylogenetically consistent and support debated paleoanthropological hypotheses.https://journals.openedition.org/bmsap/14053cladisticsphylogenygenus Homogeometric morphometricTNT software |
| spellingShingle | Margaux Simon-Maciejewski Giorgio Manzi Valéry Zeitoun Aurélien Mounier Cladistics with geometric morphometric data: The variability of the calvarium in the genus Homo Bulletins et Mémoires de la Société d’Anthropologie de Paris cladistics phylogeny genus Homo geometric morphometric TNT software |
| title | Cladistics with geometric morphometric data: The variability of the calvarium in the genus Homo |
| title_full | Cladistics with geometric morphometric data: The variability of the calvarium in the genus Homo |
| title_fullStr | Cladistics with geometric morphometric data: The variability of the calvarium in the genus Homo |
| title_full_unstemmed | Cladistics with geometric morphometric data: The variability of the calvarium in the genus Homo |
| title_short | Cladistics with geometric morphometric data: The variability of the calvarium in the genus Homo |
| title_sort | cladistics with geometric morphometric data the variability of the calvarium in the genus homo |
| topic | cladistics phylogeny genus Homo geometric morphometric TNT software |
| url | https://journals.openedition.org/bmsap/14053 |
| work_keys_str_mv | AT margauxsimonmaciejewski cladisticswithgeometricmorphometricdatathevariabilityofthecalvariuminthegenushomo AT giorgiomanzi cladisticswithgeometricmorphometricdatathevariabilityofthecalvariuminthegenushomo AT valeryzeitoun cladisticswithgeometricmorphometricdatathevariabilityofthecalvariuminthegenushomo AT aurelienmounier cladisticswithgeometricmorphometricdatathevariabilityofthecalvariuminthegenushomo |