Ratite Eggshells from Lanzarote, Canary Islands

  title={Ratite Eggshells from Lanzarote, Canary Islands},
  author={E. G. Franz Sauer and Peter Rothe},
  pages={43 - 45}
Struthious and aepyornithoid eggshells from Tertiary calcareous sediments on Lanzarote prove the presence, until about 12 million years ago, of large flightless birds. The calcarenite horizon is recognized as an old land surface. Mesozoic sedimentary rocks in the basement of the volcanic islands of Lanzarote and neighboring Fuerteventura indicate that at least part of the Canary Archipelago is underlain by continental crust. Separation of the eastern Canaries from Africa raight have been by… 
Pliocene chelonian fossil eggs from Gran Canaria, Canary Islands
ABSTRACT Thirty years ago Macau-Vilar (1958) reported chelonian eggs from Gran Canaria. Analysis of the microstructure of these eggs corroborates this identification. Field studies show that these
New Ratite Eggshells from the Miocene of Namibia
Namibian Neogene deposits have yielded a remarkably comprehensive register of fossil ratite eggshells spanning the entire Miocene and Plio-Pleistocene. Previous studies recognised three genera of
Cáscaras de huevo de tipo Aepyornis del Mioceno Superior de Alicante (España). Aproximación filogenética
The Torrellano eggshells are included within the crown-group ratites, although in a politomy which can be resolved with the used characters, and Struthio appears as the sister group of the parataxa D .
Late Mesozoic sedimentary rocks of Fuerteventura, Canary Islands: Implications for West African continental margin evolution
The basal complex of Fuerteventura, inner Canary Islands, includes a thick sequence (c. 1.5 km) of early Cretaceous terrigenous and calcareous clastic sediments and black shales. Previously
An Account of the Limnetic Fauna of the Canary Islands
Whilst Insects and Birds of the Canary Islands have been extensively studied, other groups, particularly of the subsoil and freshwater fauna have, as yet, been only very little explored. For an
The Geology of the Canary Islands
The Canary Islands, built on the continental rise and slope (Figs. 1,2), are one of the major volcanic island chains in the oceans. There is hardly another group of volcanic islands in the world,
Canary Islands—Origin and evolution
Hypotheses concerning the origin and evolution of the Canary Islands are discussed. An oceanic origin seems reasonable for the central and western islands, which are of central-volcanic type. A
Geology of West Africa and Canary and Cape Verde Islands
West Africa consists essentially of a Precambrian granitized craton (radiometric ages of 2700 to 1600 m.y.) covered by a thin sedimentary blanket, the oldest sedimentary rocks being as much as 1000
Evaluation of Geoconservation in Geosites of Palaeontological Interest from Lanzarote and Chinijo Islands UNESCO Global Geopark
The volcanic origin of Lanzarote and the islets located to the north and their relatively young age does not allow an extensive paleontological record, which does not exceed the upper Miocene (around


East Canary Islands as a Microcontinent within the Africa–North America Continental Drift Fit
The interpretation of seismic reflexion and refraction profiling suggests that the western islands of the Canary archipelago are typical oceanic volcanic cones built from sea-floor vents, in contrast, sedimentary strata in the eastern group show strong geological affinities to mainland Africa.
Mesozoische Flysch-Ablagerungen auf der Kanareninsel Fuerteventura
ZusammenfassungAus dem Basalkomplex der Kanareninsel Fuerteventura werden prävulkanische Sedimentserien beschrieben, die aus insgesamt über 1000 m mächtigen Kalk-, Ton-, Mergel-, Sand- und
Possible Pulsar Formation Mechanism
It is shown that all stars in the interval 3.5 M\cirċ form degenerate carbon–oxygen cores which converge to the same central conditions before undergoing carbon ignition, indicating that their cores are all essentially identical.
This research was supported by the National Research Council of Canada. I thank Prof
    N sive evidence of specific antibody production in or by bursal cells following systemic antigenic challenge
    • Science 108,
    • 1948