Fernando Muñiz Guinea
University of Huelva
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Featured researches published by Fernando Muñiz Guinea.
Ichnos-an International Journal for Plant and Animal Traces | 2005
M. Gabriela Mángano; Noelia B. Carmona; Luis A. Buatois; Fernando Muñiz Guinea
A new ichnospecies of Arthrophycus Hall 1852, A. minimus , is described from Upper Cambrian-Lower Tremadocian, shallow-marine strata of northwest Argentina. This new ichnospecies consists of small, long, regularly annulated hypichnial elements displaying subcircular to squarish cross-section and a ventral median groove. Side branches are occasionally present, but palmate, fan-like structures and scribbling patterns are absent. We adopt a relatively narrow diagnosis of Arthrophycus , suggesting that roughly annulated, cylindrical structures should not be included in this ichnogenus, unless other diagnostic features (i.e., squarish cross-section, median groove, zipper-like annulations) are also present. Arthrophycus is a common ichnotaxon in Ordovician-Silurian shallow-marine siliciclastic environments. Post-Paleozoic occurrences are removed from Arthrophycus . Arthrophycus has been proposed as a biostratigraphic index fossil in Ordovician-Silurian rocks. The presence of A. minimus in the Santa Rosita Formation of northwest Argentina indicates that Arthrophycus ranges at least from the Upper Cambrian-Lower Tremadocian with probable representatives in the Lower Cambrian and, therefore, its biostratigraphic utility is extended. Arthrophycus minimus represents the first Cambrian occurrence exhibiting not only fine, diagnostic morphologic features, but also the classical Arthrophycus behavioral pattern in dense monoichnospecific assemblages. The exploratory behavioral pattern displayed by A. minimus is simpler than that of the younger ichnospecies, particularly A. brogniartii, A. alleghaniensis, and A. lateralis . This is consistent with the basal position of A. minimus within the arthrophycid lineage.
Ameghiniana | 2005
M. Gabriela Mángano; Luis A. Buatois; Fernando Muñiz Guinea
Boletín de la Real Sociedad Española de Historia Natural. Sección geológica | 2003
Eduardo Barrón; Fernando Muñiz Guinea; Eduardo Jesús Mayoral Alfaro
Revista española de paleontología | 2003
Eduardo Jesús Mayoral Alfaro; Ana Lúcia Santos; Ildefonso Bajo; Olga Adriaensens; Fernando Muñiz Guinea
Geogaceta | 1997
Fernando Muñiz Guinea; Eduardo Jesús Mayoral Alfaro; José Antonio Gámez Vintaned
Spanish journal of palaeontology | 2014
Fernando Muñiz Guinea; María Gabriela Mángano; Luis A. Buatois; Virginija Podeniene; José Antonio Gámez Vintaned; Eduardo Jesús Mayoral Alfaro
Geogaceta | 2001
Fernando Muñiz Guinea; Eduardo Jesús Mayoral Alfaro; Luis Miguel Cáceres Puro; M. A. Cachao
Coloquios de Paleontología | 1996
Eduardo Jesús Mayoral Alfaro; Fernando Muñiz Guinea
Revista española de paleontología | 2004
Eladio Liñán Guijarro; José Antonio Gámez Vintaned; Rodolfo Gozalo Gutiérrez; Eduardo Jesús Mayoral Alfaro; Fernando Muñiz Guinea
Geogaceta | 1998
Fernando Muñiz Guinea; Eduardo Jesús Mayoral Alfaro; Eduardo Barrón; M. A. Cachao