Facial Morphogenesis of the Earliest Europeans

Rodrigo Lacruz, José María Bermúdez de Castro, María Martinón-Torres, Paul O'Higgins, Michael L. Paine, Eudald Carbonell, Juan Luis Arsuaga, Timothy Bromage

Research output: Contribution to journalArticle

Abstract

The modern human face differs from that of our early ancestors in that the facial profile is relatively retracted (orthognathic). This change in facial profile is associated with a characteristic spatial distribution of bone deposition and resorption: growth remodeling. For humans, surface resorption commonly dominates on anteriorly-facing areas of the subnasal region of the maxilla and mandible during development. We mapped the distribution of facial growth remodeling activities on the 900-800 ky maxilla ATD6-69 assigned to H. antecessor, and on the 1.5 My cranium KNM-WT 15000, part of an associated skeleton assigned to African H. erectus. We show that, as in H. sapiens, H. antecessor shows bone resorption over most of the subnasal region. This pattern contrasts with that seen in KNM-WT 15000 where evidence of bone deposition, not resorption, was identified. KNM-WT 15000 is similar to Australopithecus and the extant African apes in this localized area of bone deposition. These new data point to diversity of patterns of facial growth in fossil Homo. The similarities in facial growth in H. antecessor and H. sapiens suggest that one key developmental change responsible for the characteristic facial morphology of modern humans can be traced back at least to H. antecessor.

Original languageEnglish (US)
Article numbere65199
JournalPLoS One
Volume8
Issue number6
DOIs
StatePublished - Jun 6 2013

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mouthparts
resorption
Morphogenesis
morphogenesis
Bone
bones
Hominidae
Maxilla
Bone Resorption
Growth
bone resorption
Homo
Pongidae
Bone and Bones
Facings
Fossils
skeleton
ancestry
fossils
Mandible

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Lacruz, R., de Castro, J. M. B., Martinón-Torres, M., O'Higgins, P., Paine, M. L., Carbonell, E., ... Bromage, T. (2013). Facial Morphogenesis of the Earliest Europeans. PLoS One, 8(6), [e65199]. https://doi.org/10.1371/journal.pone.0065199

Facial Morphogenesis of the Earliest Europeans. / Lacruz, Rodrigo; de Castro, José María Bermúdez; Martinón-Torres, María; O'Higgins, Paul; Paine, Michael L.; Carbonell, Eudald; Arsuaga, Juan Luis; Bromage, Timothy.

In: PLoS One, Vol. 8, No. 6, e65199, 06.06.2013.

Research output: Contribution to journalArticle

Lacruz, R, de Castro, JMB, Martinón-Torres, M, O'Higgins, P, Paine, ML, Carbonell, E, Arsuaga, JL & Bromage, T 2013, 'Facial Morphogenesis of the Earliest Europeans', PLoS One, vol. 8, no. 6, e65199. https://doi.org/10.1371/journal.pone.0065199
Lacruz R, de Castro JMB, Martinón-Torres M, O'Higgins P, Paine ML, Carbonell E et al. Facial Morphogenesis of the Earliest Europeans. PLoS One. 2013 Jun 6;8(6). e65199. https://doi.org/10.1371/journal.pone.0065199
Lacruz, Rodrigo ; de Castro, José María Bermúdez ; Martinón-Torres, María ; O'Higgins, Paul ; Paine, Michael L. ; Carbonell, Eudald ; Arsuaga, Juan Luis ; Bromage, Timothy. / Facial Morphogenesis of the Earliest Europeans. In: PLoS One. 2013 ; Vol. 8, No. 6.
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