Homo floresiensis contextualized: a geometric morphometric comparative analysis of fossil and pathological human samples.

The origin of hominins found on the remote Indonesian island of Flores remains highly contentious. These specimens may represent a new hominin species, Homo floresiensis, descended from a local population of Homo erectus or from an earlier (pre-H. erectus) migration of a small-bodied and small-brain...

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Autores principales:	Karen L Baab, Kieran P McNulty, Katerina Harvati
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/de2bc82479bc4f4494f592dc3758bf8d
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spelling	oai:doaj.org-article:de2bc82479bc4f4494f592dc3758bf8d2021-11-18T07:37:53ZHomo floresiensis contextualized: a geometric morphometric comparative analysis of fossil and pathological human samples.1932-620310.1371/journal.pone.0069119https://doaj.org/article/de2bc82479bc4f4494f592dc3758bf8d2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23874886/?tool=EBIhttps://doaj.org/toc/1932-6203The origin of hominins found on the remote Indonesian island of Flores remains highly contentious. These specimens may represent a new hominin species, Homo floresiensis, descended from a local population of Homo erectus or from an earlier (pre-H. erectus) migration of a small-bodied and small-brained hominin out of Africa. Alternatively, some workers suggest that some or all of the specimens recovered from Liang Bua are pathological members of a small-bodied modern human population. Pathological conditions proposed to explain their documented anatomical features include microcephaly, myxoedematous endemic hypothyroidism ("cretinism") and Laron syndrome (primary growth hormone insensitivity). This study evaluates evolutionary and pathological hypotheses through comparative analysis of cranial morphology. Geometric morphometric analyses of landmark data show that the sole Flores cranium (LB1) is clearly distinct from healthy modern humans and from those exhibiting hypothyroidism and Laron syndrome. Modern human microcephalic specimens converge, to some extent, on crania of extinct species of Homo. However in the features that distinguish these two groups, LB1 consistently groups with fossil hominins and is most similar to H. erectus. Our study provides further support for recognizing the Flores hominins as a distinct species, H. floresiensis, whose affinities lie with archaic Homo.Karen L BaabKieran P McNultyKaterina HarvatiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 7, p e69119 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Karen L Baab Kieran P McNulty Katerina Harvati Homo floresiensis contextualized: a geometric morphometric comparative analysis of fossil and pathological human samples.
description	The origin of hominins found on the remote Indonesian island of Flores remains highly contentious. These specimens may represent a new hominin species, Homo floresiensis, descended from a local population of Homo erectus or from an earlier (pre-H. erectus) migration of a small-bodied and small-brained hominin out of Africa. Alternatively, some workers suggest that some or all of the specimens recovered from Liang Bua are pathological members of a small-bodied modern human population. Pathological conditions proposed to explain their documented anatomical features include microcephaly, myxoedematous endemic hypothyroidism ("cretinism") and Laron syndrome (primary growth hormone insensitivity). This study evaluates evolutionary and pathological hypotheses through comparative analysis of cranial morphology. Geometric morphometric analyses of landmark data show that the sole Flores cranium (LB1) is clearly distinct from healthy modern humans and from those exhibiting hypothyroidism and Laron syndrome. Modern human microcephalic specimens converge, to some extent, on crania of extinct species of Homo. However in the features that distinguish these two groups, LB1 consistently groups with fossil hominins and is most similar to H. erectus. Our study provides further support for recognizing the Flores hominins as a distinct species, H. floresiensis, whose affinities lie with archaic Homo.
format	article
author	Karen L Baab Kieran P McNulty Katerina Harvati
author_facet	Karen L Baab Kieran P McNulty Katerina Harvati
author_sort	Karen L Baab
title	Homo floresiensis contextualized: a geometric morphometric comparative analysis of fossil and pathological human samples.
title_short	Homo floresiensis contextualized: a geometric morphometric comparative analysis of fossil and pathological human samples.
title_full	Homo floresiensis contextualized: a geometric morphometric comparative analysis of fossil and pathological human samples.
title_fullStr	Homo floresiensis contextualized: a geometric morphometric comparative analysis of fossil and pathological human samples.
title_full_unstemmed	Homo floresiensis contextualized: a geometric morphometric comparative analysis of fossil and pathological human samples.
title_sort	homo floresiensis contextualized: a geometric morphometric comparative analysis of fossil and pathological human samples.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/de2bc82479bc4f4494f592dc3758bf8d
work_keys_str_mv	AT karenlbaab homofloresiensiscontextualizedageometricmorphometriccomparativeanalysisoffossilandpathologicalhumansamples AT kieranpmcnulty homofloresiensiscontextualizedageometricmorphometriccomparativeanalysisoffossilandpathologicalhumansamples AT katerinaharvati homofloresiensiscontextualizedageometricmorphometriccomparativeanalysisoffossilandpathologicalhumansamples
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Homo floresiensis contextualized: a geometric morphometric comparative analysis of fossil and pathological human samples.

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