SciELO - Scientific Electronic Library Online

vol.70 issue2Environmental implications of trace fossils from the Ixtaltepec Formation (Carboniferous) in Oaxaca, MexicoHow much variation is in the shape of fossil pupation chambers? An exploratory geometric morphometric analysis of Fictovichnus gobiensis from the Late Eocene of Oaxaca, southern Mexico author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Boletín de la Sociedad Geológica Mexicana

Print version ISSN 1405-3322


JIMENEZ-HIDALGO, Eduardo  and  GUERRERO-ARENAS, Rosalía. The Oldest Camel Footprints from Mexico. Bol. Soc. Geol. Mex [online]. 2018, vol.70, n.2, pp.351-359. ISSN 1405-3322.

Camel footprints have a well preserved record in Neogene strata from North America, including Mexico, however their Paleogene record is much less known. Here, we describe the oldest camel footprints from Mexico, located in the outskirts of Tezoatlán de Segura y Luna, northwestern Oaxaca, southern Mexico. The camel footprints are preserved as concave epirelief in fine-grained tuffaceous sandstone of the late Eocene-early Oligocene Huajuapan Formation. These footprints display the diagnostic features of Lamaichnum guanicoe, such as bidigital tracks with pointed anterior ends and rounded posterior ends, with digit impressions that do not converge anteriorly and footprints that have digit imprints connected. Potential track makers include Paratylopus, Paralabis and Pseudolabis. The concave axial surface and nail imprints of the Oaxacan footprints, indicate that the track makers shared some anatomical foot features with extant camels, suggesting that some characteristics of the peculiar camel foot had already evolved by the late Eocene-early Oligocene.

Keywords : Camelidae; Lamaichnum guanicoe; EoceneOligocene; Tezoatlán; Oaxaca; Mixteca.

        · abstract in Spanish     · text in English     · English ( pdf )