NOTA NOMENCLATURAL

Morenostrobus, a new substitute name for Morenoa Del Fueyo et al. 1990, non La Llave 1824

Georgina M. Del Fueyo¹, Sergio Archangelsky¹ and Thomas N. Taylor²

¹CONICET, División Paleobotánica, Museo Argentino de Ciencias Naturales 'B. Rivadavia', Av. Angel Gallardo 470, C1405DJR Buenos Aires, Argentina. georgidf@yahoo.com.ar, sarcang@fibertel.com.ar
²Department of Ecology and Evolutionary Biology and Natural History Museum and Biodiversity Research Center, University of Kansas, Lawrence, Kansas 66045-7534, U.S.A. tntaylor@ku.edu

The generic name Morenoa Del Fueyo, S. Archang. and T.N. Taylor (in Ameghiniana 27: 63-73. 1990) was erected to include fossil conifer pollen cones attached to leafy twigs, from the Aptian Anfiteatro de Ticó Formation in Patagonia, Argentina. This conifer was referred to the family Podocarpaceae based on the following vegetative and reproductive characters: leaves helically disposed, lanceolate with abundant papillae and stomata in both epidermis; pollen cones in clusters of three, laterally attached to distal part of twigs and microsporangia containing bisaccate pollen of the Podocarpidites-type.
Morenoa Del Fueyo et al. is an illegitimate name (ICBN Articles 6.4 and 53. 2006) because it is a later homonym of Morenoa La Llave (in La Llave et Lexarza Novorum Vegetabilium Descriptiones 1: 5. 1824), extant Convolvulaceae. Therefore, we propose to substitute the new name Morenostrobus Del Fueyo, S. Archang. et T.N. Taylor for the illegitimate fossil name Morenoa, and make the new combination Morenostrobus fertilis as follows:
Morenostrobus Del Fueyo, S. Archang. et T.N. Taylor, nom. nov.: Morenoa Del Fueyo, S. Archang. and T.N. Taylor in Ameghiniana 27:68. 1990, nom.illeg., non Morenoa La Llave 1824.
Type. Morenostrobus fertilis (Del Fueyo, S. Archang. and T. N. Taylor) Del Fueyo, S. Archang. and T. N. Taylor, comb. nov.: Morenoa fertilis Del Fueyo, S. Archang. and T. N. Taylor in Ameghinana 27: 68.1990.
Holotypus. BA Pb 11310 (illustrated in Del Fueyo et al., Ameghiniana 27 (1-2), pl. I, fig. 1,2 and pl. III fig. 16. 1990).
Paratypus. BA Pb 11311A, 11313A, 11323, 11325A, 11336A, 11337A.
Locus typicus. Estancia Bajo Tigre, Santa Cruz Province, Argentina.

Stratigraphy. Anfiteatro de Ticó Fm., BTO Horizon (coll. 1985)
Age. Early Cretaceous (Aptian)
Derivatio nominis. The new generic name is a combination of Moreno= after Fransisco P. Moreno, Argentine naturalist and a pioneer to explore Patagonia, and strobus=cone.

Acknowledgements

We thank J. McNeill and A.B. Doweld for useful nomenclatural suggestions and for critical reading of a first version of the manuscript.

References

1. Del Fueyo, G.M., Archangelsky, S. and Taylor, T.N. 1990. Una nueva Podocarpácea fértil (Coniferal) del Cretácico inferior de Patagonia. Ameghiniana 27: 63-73.         [ Links ]

2. ICBN, 2006. International Code of Botanical Nomenclature Vienna Code. J. McNeill, F.R. Barrie, H.M. Burdet, V. Demoulin, D.L. Hawksworth, K. Marhold, D.H. Nicolson, J. Prado, P.C. Silva, J.E. Skog, J.H. Wiersema and N.J.Turland (eds.), Regnum Vegetabile 146. A.R. G. Gantner Verlag, Liechtenstein.         [ Links ]

3. La Llave, P. 1824. Morenoa La Llave. In: P. La Llave and J.J. Lexarza (eds.). Novorum Vegetabilium Descriptiones 1: 5. Mexico.         [ Links ]

Recibido: 23 de diciembre de 2008.
Aceptado: 11 de marzo de 2009.