"CINDAQ 2022 Annual report". CINDAQ. El Centro Investigador del Sistema Acuífero de Quintana Roo A.C.(CINDAQ). 26 January 2023. Retrieved 3 February 2023.
Laureano, Fernando V.; Karmann, Ivo; Granger, Darryl E.; Auler, Augusto S.; Almeida, Renato P.; Cruz, Francisco W.; Strícks, Nicolás M.; Novello, Valdir F. (15 November 2016). "Two million years of river and cave aggradation in NE Brazil: Implications for speleogenesis and landscape evolution". Geomorphology. 273: 63–77. Bibcode:2016Geomo.273...63L. doi:10.1016/j.geomorph.2016.08.009.
D. L. Hoffmann; C. D. Standish; M. García-Diez; P. B. Pettitt; J. A. Milton; J. Zilhão; J. J. Alcolea-González; P. Cantalejo-Duarte; H. Collado; R. de Balbín; M. Lorblanchet; J. Ramos-Muñoz; G.-Ch. Weniger; A. W. G. Pike (2018). "U-Th dating of carbonate crusts reveals Neandertal origin of Iberian cave art". Science. 359 (6378): 912–915. Bibcode:2018Sci...359..912H. doi:10.1126/science.aap7778. hdl:10498/21578. PMID29472483. "we present dating results for three sites in Spain that show that cave art emerged in Iberia substantially earlier than previously thought. Uranium-thorium (U-Th) dates on carbonate crusts overlying paintings provide minimum ages for a red linear motif in La Pasiega (Cantabria), a hand stencil in Maltravieso (Extremadura), and red-painted speleothems in Ardales (Andalucía). Collectively, these results show that cave art in Iberia is older than 64.8 thousand years (ka). This cave art is the earliest dated so far and predates, by at least 20 ka, the arrival of modern humans in Europe, which implies Neandertal authorship."
D. L. Hoffmann; C. D. Standish; M. García-Diez; P. B. Pettitt; J. A. Milton; J. Zilhão; J. J. Alcolea-González; P. Cantalejo-Duarte; H. Collado; R. de Balbín; M. Lorblanchet; J. Ramos-Muñoz; G.-Ch. Weniger; A. W. G. Pike (2018). "U-Th dating of carbonate crusts reveals Neandertal origin of Iberian cave art". Science. 359 (6378): 912–915. Bibcode:2018Sci...359..912H. doi:10.1126/science.aap7778. hdl:10498/21578. PMID29472483. "we present dating results for three sites in Spain that show that cave art emerged in Iberia substantially earlier than previously thought. Uranium-thorium (U-Th) dates on carbonate crusts overlying paintings provide minimum ages for a red linear motif in La Pasiega (Cantabria), a hand stencil in Maltravieso (Extremadura), and red-painted speleothems in Ardales (Andalucía). Collectively, these results show that cave art in Iberia is older than 64.8 thousand years (ka). This cave art is the earliest dated so far and predates, by at least 20 ka, the arrival of modern humans in Europe, which implies Neandertal authorship."
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Laureano, Fernando V.; Karmann, Ivo; Granger, Darryl E.; Auler, Augusto S.; Almeida, Renato P.; Cruz, Francisco W.; Strícks, Nicolás M.; Novello, Valdir F. (15 November 2016). "Two million years of river and cave aggradation in NE Brazil: Implications for speleogenesis and landscape evolution". Geomorphology. 273: 63–77. Bibcode:2016Geomo.273...63L. doi:10.1016/j.geomorph.2016.08.009.
D. L. Hoffmann; C. D. Standish; M. García-Diez; P. B. Pettitt; J. A. Milton; J. Zilhão; J. J. Alcolea-González; P. Cantalejo-Duarte; H. Collado; R. de Balbín; M. Lorblanchet; J. Ramos-Muñoz; G.-Ch. Weniger; A. W. G. Pike (2018). "U-Th dating of carbonate crusts reveals Neandertal origin of Iberian cave art". Science. 359 (6378): 912–915. Bibcode:2018Sci...359..912H. doi:10.1126/science.aap7778. hdl:10498/21578. PMID29472483. "we present dating results for three sites in Spain that show that cave art emerged in Iberia substantially earlier than previously thought. Uranium-thorium (U-Th) dates on carbonate crusts overlying paintings provide minimum ages for a red linear motif in La Pasiega (Cantabria), a hand stencil in Maltravieso (Extremadura), and red-painted speleothems in Ardales (Andalucía). Collectively, these results show that cave art in Iberia is older than 64.8 thousand years (ka). This cave art is the earliest dated so far and predates, by at least 20 ka, the arrival of modern humans in Europe, which implies Neandertal authorship."
D. L. Hoffmann; C. D. Standish; M. García-Diez; P. B. Pettitt; J. A. Milton; J. Zilhão; J. J. Alcolea-González; P. Cantalejo-Duarte; H. Collado; R. de Balbín; M. Lorblanchet; J. Ramos-Muñoz; G.-Ch. Weniger; A. W. G. Pike (2018). "U-Th dating of carbonate crusts reveals Neandertal origin of Iberian cave art". Science. 359 (6378): 912–915. Bibcode:2018Sci...359..912H. doi:10.1126/science.aap7778. hdl:10498/21578. PMID29472483. "we present dating results for three sites in Spain that show that cave art emerged in Iberia substantially earlier than previously thought. Uranium-thorium (U-Th) dates on carbonate crusts overlying paintings provide minimum ages for a red linear motif in La Pasiega (Cantabria), a hand stencil in Maltravieso (Extremadura), and red-painted speleothems in Ardales (Andalucía). Collectively, these results show that cave art in Iberia is older than 64.8 thousand years (ka). This cave art is the earliest dated so far and predates, by at least 20 ka, the arrival of modern humans in Europe, which implies Neandertal authorship."
