Icnitas de aves y de mamíferos del Mioceno temprano de La Rioja (Cuenca del Ebro, España) = Lower Miocene bird and mammal footprints from La Rioja (Ebro Basin, Spain

  1. Díaz-Martínez, I. 34
  2. Fernández, S.G. 1
  3. Hernández, J.M. 2
  4. Murelaga, X. 5
  5. Pérez-Lorente, F. 4
  1. 1 Aula Paleontológica de Cenicero, Casa de Cultura Las Monjas, E-26350 Cenicero, La Rioja, Spain
  2. 2 Fundación Cristina Enea, Paseo Duque de Mandas 66, E-20012 San Sebastián, Gipuzkoa, Spain
  3. 3 Universidad de Zaragoza
    info

    Universidad de Zaragoza

    Zaragoza, España

    ROR https://ror.org/012a91z28

  4. 4 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  5. 5 Universidad del País Vasco/Euskal Herriko Unibertsitatea
    info

    Universidad del País Vasco/Euskal Herriko Unibertsitatea

    Lejona, España

    ROR https://ror.org/000xsnr85

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Revue:
Ameghiniana

ISSN: 0002-7014

Année de publication: 2011

Volumen: 48

Número: 2

Pages: 138-143

Type: Article

DOI: 10.5710/AMGH.V48I2(296) SCOPUS: 2-s2.0-80055081697 WoS: WOS:000295902500001 GOOGLE SCHOLAR lock_openAccès ouvert editor

D'autres publications dans: Ameghiniana

Résumé

A new site carrying vertebrate footprints is described at Cenicero (Ebro Basin, Spain). The footprints are preserved in sandstone beds located within the "Transition Unit", between the Agenian (early Miocene) Nájera and Haro formations. This level is placed between local biozones Y and Z. Fourteen blocks are studied; they contain 72 bird, 46 artiodactyl, and six perissodactyl footprints. Bird footprints include two ichnotaxa. The first one includes large to enormous tetradactyl footprints, with an incumbent hallux. It is identified as Gruipeda cf. maxima Panin and Avram. The second bird ichnotaxon is tridactyl with a prominent central pad, very large to enormous and with toes not joining at the proximal end. The latter feature suggests that it is probably a new bird ichnotaxon. Several ichnogeneric taxobases are proposed for bird footprints with the purpose of unifying the existing criteria between studies on extant and fossils bird ichnites. The artiodactyl footprints are small and identified as the ichnogenus Pecoripeda Vialov. The perissodactyl tracks are small and monodactyl, produced by equids, and classified as cf. Hippipeda Vialov.