[ "Division of Birds, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560"]
The Condor (Impact Factor: 1.35). 01/2009; DOI: 10.1650/0010-5422(2003)105[150:NROSCF]2.0.CO;2

ABSTRACT Storks were previously known in Cuba only from the living Wood Stork (Mycteria americana) and two bones of the extinct species Ciconia maltha from Cienfuegos Province. Newly explored Quaternary tar seep deposits in Matanzas Province have yielded fossils of M. americana, the extinct wood stork M. wetmorei, and an unidentified species of Ciconia smaller than C. maltha. These specimens provide the first verifiable fossil record of M. americana anywhere, the first of M. wetmorei outside of Florida and California, and the first instance of these two species occurring sympatrically. Nuevos Registros de Cigüeñas (Ciconiidae) en Depósitos Cuaternarios de Asfalto en Cuba Resumen. Las cigüeñas eran conocidas en Cuba solo por la cayama viviente, Mycteria americana, y por dos huesos de la especie extinta Ciconia maltha, procedentes de la Provincia de Cienfuegos. La exploración de depósitos cuaternarios de asfalto en la Provincia de Matanzas, aportó fósiles de la cigüeña extinta Mycteria wetmorei, de M. americana, y de una especie no identificada de Ciconia, menor que C. maltha. Estos fósiles suministran el primer registro confiable de M. americana, y el primero de M. wetmorei fuera de Florida y California, junto con la primera evidencia de estas dos especies viviendo en simpatría.

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    ABSTRACT: An incomplete tarsometatarsus of a fossil Ciconiidae is here described. It comes from the Tarija Formation (Lower-Middle Pleistocene) of Bolivia. It is assigned to the large extinct species Ciconia maltha, recorded in the Mid-Late Pleistocene of North and Central America. The material here reported represents the fi rst fossil record for Ciconia maltha in South America, and the fi rst for the family Ciconiidae in Bolivia.
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    ABSTRACT: A novel protocol to purify bone collagen for radiocarbon dating and stable isotope ratio analysis from asphalt-impregnated skeletal remains stored in the George C. Page Museum of La Brea Discoveries (Los Angeles, California) is presented. This simple technique requires that bones be crushed (1-2 mm), sonicated in a 2:1 toluene/methanol solution, and gelatinized at 75°C overnight to break down collagen strands for ultrafiltration. However, here the traditional protocol of ultrafiltration is reversed, and the high molecular weight fraction (>30 kDa) contains mainly the asphalt (too big to pass through the filter), while the lower molecular weight fraction (<30 kDa) contains the collagen. A second ultrafiltration (>3kDa) is then performed on the <30 kDa fraction to remove lower molecular weight contaminants such as hydrocarbons and humic acids. The middle fraction (3-30 kDa) is freeze dried and produces collagen with excellent atomic C:N ratios between 3.2-3.5. The steps involved in the design of the protocol will be discussed in detail, and the first isotopic results and radiocarbon dates from the Project 23 site will be presented. In addition, the largest compilation of carbon and nitrogen isotopic results directly paired with radiocarbon ages on bone collagen from 38 land mammals found at the Rancho La Brea site are presented. Finally, while this protocol was specifically designed to extract collagen from samples at the Rancho La Brea site, it is likely that it can be applied to other localities (e.g. Cuba, Ecuador, Peru, Venezuela, etc.) where bones have been impregnated with petroleum.
    Quatemary Geochronology 08/2014; 22. DOI:10.1016/j.quageo.2014.03.002 · 2.48 Impact Factor
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    ABSTRACT: In the present note new materials referable to the living species C. lydekkeri are described and reviewed. The extinct species C. maltha is here considered as junior synonym of C. lydekkeri and the latter is reported for the first time in the Pleistocene of Argentina. Moreover, all fossil records of the genus Ciconia in the Pleistocene of South America are briefly analyzed. En el presente trabajo se comentan y revisan materiales referibles a la especie extinta Ciconia lydekkeri. La especie extinta C. maltha es considerada aquí como sinónimo júnior de C. lydekkeri y es citada por primera vez para Argentina. Asimismo se efectúa una breve revisión de todos los registros del género Ciconia en el Pleistoceno de Sudamérica.