Nested central volcanism related to rift development and giant landsliding in oceanic islands

Centro Superior de Investigaciones Científicas, Museo Nacional de Ciencias Naturales, Estación Volcanológica de Canarias

Recovery plan for the giant lizard of El Hierro (Canary Islands), Gallotia simonyi: project outline and preliminary results

[EN] The Giant Lizard of El Hierro, Gallotia simonyi is one of the most endangered reptile species of the world (Corbett 1989, 1993, Machado et al. 1985). The first scientific news about a living population of G. simonyi dates back to 1975 (Böhme & Bings 1975, 1977; see also Bischoff et al. 1979). The giant lizard, widely distributed in El Hierro in the past (Böhme et al. 1981) is presently restricted to a small area of the Fuga de Gorreta (fig. 1).

A new giant land tortoise from the Pliocene of Gran Canaria (Canary Islands)

[ES] Una nueva especie de tortuga terrestre extinguida en el Plioceno de Gran Canana es descrita con el nombre de Geochelone vulcanica. La comparación con el material óseo similar de G. burchardi en la isla de Tenerife, demuestra las grandes diferencias existentes entre ambos taxones. Los huevos fósiles de tortugas terrestres descritos en la isla de Gran Canana se consideran pertenecientes a la nueva especie.

Status of the extinct giant lacertid lizard Gallotia simonyi simonyi (Reptilia: Lacertidae) assessed using mtDNA sequences from museum specimens

[EN] Gallotia simonyi (Steindachner, 1889) is a member of an endemic Canary Island genus and is among the largest of the approximately 250 recent species of lacertid lizards. Although Steindachner gave the locality of the types as the Roques de Salmor, off El Hierro island, previous workers (Urusaustegui, 1983; Manrique & Saavedra, 1873; Viera & Clavijo, 1983) and subsequent ones (Machado, 1985) regard the more western of the two rocks in the group, the Roque Chico de Salmor, as the actual source of material. The Roque Chico is 37 m high with a surface area of less than 10,000 m2 and lies 830 m from the northern coast of El Hierro (Machado, 1985).