. Asiatic herpetological research. Reptiles -- Asia Periodicals; Amphibians -- Asia Periodicals. February 1992 Asiatic Herpetological Research Vol. 4, p. 93. FIG. 12. Habitat of Phrynocephalus rossikowi (size x 2) from along the Amu Darya River, 30 km WNW of Deynau (39° 15' N 63° 11' E), Turkmenistan. Sokolowsky (1975) discovered considerable karyotypical differences between P. sogdianus and P . interscapularis. With the alternations of the Quarternary glacial and interglacial epoches, the pluvial and xero-thermic climatic periods were connected. However, during the whole Quaternary period, th
. Asiatic herpetological research. Reptiles -- Asia Periodicals; Amphibians -- Asia Periodicals. February 1992 Asiatic Herpetological Research Vol. 4, p. 93. FIG. 12. Habitat of Phrynocephalus rossikowi (size x 2) from along the Amu Darya River, 30 km WNW of Deynau (39° 15' N 63° 11' E), Turkmenistan. Sokolowsky (1975) discovered considerable karyotypical differences between P. sogdianus and P . interscapularis. With the alternations of the Quarternary glacial and interglacial epoches, the pluvial and xero-thermic climatic periods were connected. However, during the whole Quaternary period, the climate was sharply continental. The desert or desert steppe (in pluvial epoches) regime was retained on the plains of Middle Asia (Gvozdezky and Mikhailov, 1987). During the Quaternary, the last accumulation changing of the relief on the plains in Middle Asia took place. This may explain the present configuration of the ranges of desert animals. The last considerable accumulation (Khvalynskaya) included the Caspian and low land Kara Kum Desert, Muyn Kum and Sary Ishik Otrau. Toad headed agamids completely disappeared in the middle Quaternary period from the Muyun Kum Desert. After which only P. mystaceus could inhabit it. The Khvalynskaya transgression of the Caspian Sea defined the western part of the range of P. raddei. The flooding of the Sary Ishik Otrau sands near the southern coast of Balkhash Lake resulted in the almost total disappearence of P. guttatus and P. mystaceus in this region. They are retained probably only near the foot of isolated island mountains that have risen recendy among the sands in the eastern part of Sary Ishik Otrau (Fig. 10). Subsequently, dispersal from these refugia and isolated areas could have led to the formation of P. guttatus kuschakevitschi in the Balkhash sands. Thus, the history of the formation of Phrynocephalus distributions, which is the sclerobionts (hard soils) depressions and. Please note that these images are extracted from s
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