Topic
Geoemydidae
About: Geoemydidae is a research topic. Over the lifetime, 82 publications have been published within this topic receiving 1031 citations.
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01 Jan 2014
TL;DR: In this paper, the authors describe the implementation of the method to analyze the mitochondrial DNA control sequence (mtDNA) of R. nasuta in order to generate tools for future studies in systematics and population conservation.
Abstract: Rhinoclemmys nasuta (Testudines:Geoemydidae) is considered an almost endemic specie to Colombia and the most primitive species of Rhynoclemmys. However, it is classified data deficient by IUCN because the available information is not enough to make a direct or indirect assessment of its extinction risk. Here, we describe the implementation of the method to analyze the mitochondrial DNA control sequence (mtDNA) of R. nasuta in order to generate tools for future studies in systematics and population conservation. Genomic mtDNA was extracted by salting-out from blood samples from Isla Palma and Playa Chucheros (Bahia Malaga–Colombian Pacific Coast) and we used a pair of degenerate primers (reported for Chrysemys picta, Testudines:Emydidae) to perform amplification. Fragments of 800pb were obtained and the sequencing reaction was effective. A homology percentage above of 92 % was established between the obtained sequences and mtDNA sequences from Sacalia quadriocellata (Testudines:Geoemydidae) ,and Cuora aurocapitata (Testudines:Geoemydidae) reported in the GenBank.
TL;DR: A Late Pleistocene fossil represented by an incomplete right hypoplastron of Cuora amboinensis was recovered from the Wajak site in East Java, Indonesia as discussed by the authors.
Abstract: .
A Late Pleistocene fossil represented by an incomplete right hypoplastron of Cuora amboinensis was recovered from the Wajak site (ca. 37 ka–29 ka: Late Pleistocene) in East Java, Indonesia. The fossil constitutes the first certain prehistoric record of this species from Java, which implies that the current conspecific population in this island is indigenous to the region rather than artificially introduced from the Southeast Asian continent in historic times. The specimen has four small distinct impact pits on the hypoplastron in dorsal view, which were possibly caused by a pointed stone artifact or a bone tool. The presence of such percussion marks suggests that this turtle was consumed by the Wajak people.