| Seddon, J. M., Georges, A., Baverstock, P. R., & McCord, W. P. (1997). Phylogenetic relationships of chelid turtles (pleurodira: chelidae) based on mitochondrial 12s rrna gene sequence variation. Molecular Phylogenetics and Evolution, 7, 55–81. |
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| Last edited by: Beate Pfau 28 Dec 2009 18:44:11 UTC |
Pop. 4%
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| Siqueira Campos, F., Moraes, R. L. D., & Pereira, C. S. A. (2011). New state record of mesoclemmys perplexa bour and zaher, 2005 (reptilia: chelidae) in brazil. Herpetology Notes, 4, 263–264. |
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| Added by: Admin 29 Jan 2012 12:39:11 UTC |
Pop. 3.75%
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| de Souza, F. L., Giraldelli, G. R., & Martins, T. A. (2006). Reproductive aspects of brazilian side-necked-turtles (chelidae). Boletín de la Asociación Herpetológica Española, 17(1), 28–34. |
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| Added by: Admin 14 Aug 2008 20:33:47 UTC |
Pop. 5.25%
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| de Souza, F. L. (2004). Uma revisão sobre padrões de atividade, reprodução e alimentação de cágados brasileiros (testudines, chelidae). Phyllomedusa, 3(1), 15–27. |
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| Added by: Sarina Wunderlich 24 May 2009 21:41:27 UTC |
Pop. 5.25%
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| de Souza, F. L., & Abe, A. S. (2000). Feeding ecology, density and biomass of the freshwater turtle, phrynops geoffroanus, inhabiting a polluted urban river in south-eastern brazil. Journal of zoology, 252, 437–446. |
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| Added by: Admin 17 Aug 2008 18:54:59 UTC |
Pop. 3.5%
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| de Souza, F. L. (2006). Geographical distribution patterns of south american side-necked turtles (chelidae), with emphasis on brazilian species. Revista Española de Herpetología, 19, 33–46. |
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| Added by: Admin 14 Aug 2008 20:32:49 UTC |
Pop. 5.25%
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| de Souza, F. L., & Abe, A. S. (2001). Population structure and reproductive aspects of the freshwater turtle, phrynops geoffroanus, inhabiting an urban river in southeastern brazil. Studies on Neotropical Fauna and Environment, 36(1), 57–62. |
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| Added by: Admin 14 Aug 2008 22:46:55 UTC |
Pop. 3.5%
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| de Souza, F. L., Martins, M., Martins, M., & Sawaya, R. J. (2000). A new record and observations of vanderhaege's toad-headed turtle, phrynops vanderhaegei (testudines, chelidae) in se brazil. Boletín de la Asociación Herpetológica Española, 11(2), 85–88. |
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| Added by: Admin 17 Aug 2008 18:54:59 UTC |
Pop. 3%
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| Thomson, S. A. (2003). Chelodina colliei. (Manuskript). |
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| Last edited by: Beate Pfau 13 Sep 2008 09:26:31 UTC |
Pop. 5.5%
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| Ullrich, W. (1998). Sumpf- und wasserschildkröten. auswahl, unterbringung, pflege. Niedernhausen: Falken Verlag. |
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| Added by: Admin 14 Aug 2008 20:40:53 UTC |
Pop. 4%
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| Vargas-Ramírez, M., Michels, J., & Castaño-Mora, O. V. (2012). Weak genetic divergence between the two south american toad-headed turtles mesoclemmys dahli and m. zuliae (testudines: pleurodira: chelidae). Amphibia-Reptilia, (in press). |
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| Added by: Sarina Wunderlich 18 Nov 2012 17:47:09 UTC |
Pop. 5%
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| Velasquez, J. D. L. O. L. (2000). Phrynops dahli, eine wenig bekannte schildkrötenart von der karibikküste kolumbiens. Reptilia, 5(1), 63–66. |
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| Added by: Admin 14 Aug 2008 22:46:58 UTC |
Pop. 2.25%
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| Wicker, R. (1984). Beobachtungen bei mehrjähriger zucht von phrynops geoffroanus geoffroanus (schweigger, 1812). Salamandra, 20, 185–191. |
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| Added by: Admin 24 Aug 2008 20:04:49 UTC |
Pop. 2.25%
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| Zoologischer Garten der Stadt Frankfurt am Main. (1987). Junge krötenkopfschildkröten (phrynops geoffroanus geoffroanus) im exotarium des frankfurter zoo. Aquarien-Magazin, 21 (7), 265. |
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| Added by: Admin 24 Aug 2008 17:39:55 UTC |
Pop. 2.75%
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| Zoologischer Garten der Stadt Frankfurt am Main. (1987). Junge krötenkopfschildkröten im exotarium des frankfurter zoologischen gartens. DATZ, 40 (1), 47. |
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| Added by: Admin 24 Aug 2008 17:39:55 UTC |
Pop. 2.75%
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| Zoologischer Garten der Stadt Frankfurt am Main. (1986). Neues aus dem zoo frankfurt. Herpetofauna, 8(44), 9. |
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| Added by: Admin 24 Aug 2008 20:00:23 UTC |
Pop. 2.75%
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| Zoologischer Garten der Stadt Frankfurt am Main. (1993). Krötenkopfschildkröten-schwemme im exotarium. DATZ, 46 (1), 9. |
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| Added by: Sarina Wunderlich 23 Aug 2008 14:56:23 UTC |
Pop. 2.75%
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