Millerocaulis tekelili

Nuevo trabajito, donde se describe una nueva Osmundaceae del Cretácico Inferior de Antártida. Esta es la ultima de las osmundáceas que me quedaba de la Tesis. El epíteto específico es, obviamente (bueno, tal vez no es demasiado obvio) un homenaje doble, a Edgar A. Poe y Howard P. Lovecraft. Tanto en "Las aventuras de Gordon Pym" del primer autor, como "En las montañas de la locura" del segundo, aparecen unas criaturas antárticas que gritan el vocablo "Tekeli-li" al momento de amenazar a los protagonistas.
Si bien las fotos no son muy elocuentes, creanme que son materiales bastante bonitos

Abstract

Vera, E.I. Millerocaulis tekelili sp. nov., a new species of osmundalean fern from the Aptian Cerro Negro Formation (Antarctica). Alcheringa, 1–10. ISSN 0311-5518.

A new species of the osmundalean fossil morphogenus Millerocaulis Tidwell emend. Vera, Millerocaulis tekelili sp. nov. is defined, based on several permineralized stems recovered from exposures of the Lower Cretaceous Cerro Negro Formation on Livingston Island, South Shetland Islands, Antarctica. This new species is characterized by the presence of an ectophloic–dictyoxylic siphonostele, inner parenchymatic and outer sclerotic cortices, heterogeneous sclerotic ring in the petiole bases, absence of sclerenchyma associated with the petiolar xylem trace, petiolar inner cortex with sclerenchyma strands and stipular wings having a large sclerenchyma bundle and several smaller ones. The presence of non-homogeneous sclerotic rings in the petiole bases allows this new species to be clearly distinguished from other Antarctic Millerocaulis, and suggests that it may represent an intermediate form in the evolutionary lineage leading from Millerocaulis to subgenus Claytosmunda of Osmunda.

http://www.tandfonline.com/doi/abs/10.1080/03115518.2011.576541#preview