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Chromosomal relationships of the tortoises (family Testudinidae)
Genetica, 1982Banded chromosomes of five species of testudinid turtles (Geochelone pardalis, G. elongata, G. elephantopus, Gopherus berlandieri, and G. polyphemus) reveal little variation within either genus, although there are differences in amount and distribution of heterochromatin between Geochelone pardalis and G. elongata.
R. C. Dowler, J. W. Bickham
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Checklist of fossil land tortoises (Testudinidae)
Bulletin of the Florida Museum of Natural History, 1974This checklist is based on the main literature pertaining to fossil tortoises and an examination of many important specimens in museums in North and South America, Europe, and India.2 Zoogeography and evolutionary trends are outlined and briefly discussed.
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Tortoises (Chelonii, Testudinidae)
2011Two species of tortoises are known from Pliocene sites on the Eyasi Plateau, including Laetoli. The most common species is a medium-sized tortoise, Stigmochelys brachygularis, which is well represented in the Laetolil Beds (∼3.6–4.4 Ma) and Upper Ndolanya Beds (∼2.66 Ma).
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RAPD variation in Mediterranean turtle Testudo graeca L. (Testudinidae)
Russian Journal of Genetics, 2004The polymerase chain reaction with arbitrary primers (RAPD-PCR) was used to study intraspecific variation in Mediterranean turtle Testudo graeca, which is represented by the Dagestan (T. g. pallasi) and Nikolskii (T. g. nikolskii) subspecies in Russia. To study the phylogenetic relationships, the RAPD variation was also compared in two other T.
S. K. Semyenova +6 more
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[The anatomy of the heart of tortoises (Testudinidae)].
Berliner und Munchener tierarztliche Wochenschrift, 201625 formalin-fixed hearts of different tortoise species (Testudinidae) underwent gross-anatomical examination. The aim of the study was to illustrate the specific anatomy of the heart of these species in comparison to the data available in the literature.
Maike, Prütz +3 more
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A nomenclatural history of tortoises (family Testudinidae)
Smithsonian Herpetological Information Service, 1988NMNH
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The call of the Aldabra tortoise (Geochelone gigantea) (Reptilia, Testudinidae)
Amphibia-Reptilia, 1981AbstractMating male Aldabra tortoises (Geochelone gigantea) emit loud, deep-pitched calls or "groans" while mounted. A bout of 34 groans was recorded and analyzed oscillographically and spectrographically. The sound energy occurs in periodic waves and there is no evidence of regularly pulsed energy. Calls are relatively stereotyped, with at least seven
Frazier, John G., Peters, G.
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The Reproductive Biology of Gopherus polyphemus (Chelonia: Testudinidae)
American Midland Naturalist, 1980Female Gopherus polyphemus in N Florida mature at 10-15 years of age and 220-230 mm plastron length (approximately 1700 to 1950 g). Vitellogenesis begins in September and continues until the following nesting season. Mating in the field has been observed only in April and May, but captive mating is known from March to November.
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THE SAVANNAH SPECIES OFKINIXYS(TESTUDINIDAE)
The Journal of the Herpetological Association of Africa, 1992ABSTRACT The savannah species of Kinixys in Africa are reviewed. K. spekii and K. lobatsiana are treated as full species, bringing to four the number of recognized savannah species. A key to the Kinixys in southern Africa is included, along with a map of the distribution of the species.
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