You are here » home › advanced search › Graptemys geographica

Graptemys geographica (LESUEUR, 1817)

IUCN Red List - Graptemys geographica - Least Concern, LC
iNaturalist logo

Can you confirm these amateur observations of Graptemys geographica?

Add your own observation of
Graptemys geographica »

Find more photos by Google images search: Google images

Higher TaxaEmydidae, Deirochelyinae, Testudinoidea, Testudines (turtles)
Subspecies 
Common NamesE: Common Map Turtle, Northern Map Turtle 
SynonymTestudo geographica LESUEUR 1817: 86
Emys lesueuri GRAY 1831
Emys geographica — DUMÉRIL & BIBRON 1835: 258
Emys Geographica — DUMÉRIL & BIBRON 1854: 225
Graptemys geographica — AGASSIZ 1857
Malacoclemmys geographica — BOULENGER 1889
Malaclemys geographica — MCATEE 1907
Malacoclemmys geographicus – STUNKARD 1915
Graptemys geographica — ERNST & BARBOUR 1989: 218
Graptemys geographica — CONANT & COLLINS 1991: 57
Graptemys geographica — CROTHER 2000
Graptemys geographica — RHODIN et al. 2010
Graptemys geographica — TTWG 2021 
DistributionCanada (S Quebec, S Ontario),
USA (Louisiana, Mississippi, New Jersey, North Carolina, NW Vermont, New York, Pennsylvania (Susquehanna River drainage of Pennsylvania), Ohio, W West Virginia, W Virginia, Tennessee, NW Georgia, N Alabama, Kentucky, Indiana, Illinois, Michigan, E Minnesota, E Iowa, Missouri, E Kansas, NE Oklahoma, Arkansas, S Wisconsin, Maryland, Delaware River)

Type locality: restricted to the “peninsula of Presque Isle and adjacent Presque Isle Bay in Erie County, Pennsylvania” by Lindeman 2009.  
Reproductionoviparous. Exhibits temperature‐dependent sex determination (TSD) fide Cornejo-Páramo et al. 2020 (and references therein). 
TypesLectotype: Iconotype, drawn specimen by Le SUEUR 
Diagnosis 
CommentDiet: omnivore; members of the genus Graptemys are highly adapted to molluscs (Ernst & Barbour 1989)

Type species: Testudo geographica LE SUEUR 1817: 86 is the type species of the genus Graptemys AGASSIZ 1857: 436.

Phylogeny: for a phylogeny of the genus see Thomson et al. 2018.

Habitat: freshwater (lakes, rivers)

Karyotype (Graptemys): Killebrew (1977a) reported the karyotype is 2n = 50: 26 macrochromosomes (16 metacentric, 6 submetacentric, and 4 telocentric or acrocentric), and 24 microchromosomes. McKown (1972), however, found several species to be 2n = 52.

McDowell (1964) revived Boulenger's inclusion (1889) of Graptemys in the genus Malaclemys. Graptemys was not recognized even as a subgenus, because the differences between M. terrapin and G. kohnii are no greater than those between G. kohnii and G. geographica. This arrangement was not widely accepted (see, for example, Ernst and Barbour, 1972, and Dobie and Jackson, 1979). Wood (1977) felt that McDowell had not made a convincing case for the all-inclusive Malaclemys and presented other evidence suggesting the origin of many, if not all, Graptemys from Malaclemys. However, Dobie (1981) showed Malaclemys to differ substantially from Graptemys in osteology,
which raises serious questions about Malaclemys as the immediate ancestor of Graptemys (Ernst & Barbour 1989).

Key to the species of Graptemys: Ernst & Barbour 1989: 217. 
EtymologyNamed after the carapacial pattern resembling contour lines on a map.

The genus name means “inscribed turtle”; probably referring to the carapacial pattern. 
References
  • Angley, James R. and Buhlmann, Kurt A. 2017. Graptemys geographica (Northern Map Turtle) Colonization. Herpetological Review 48 (1): 175-177 - get paper here
  • Anton, T. G. & Graser, W. H. 2012. Geographic distribution: Graptemys geographica (northern map turtle). Herpetological Review 43: 441-442 - get paper here
  • Anton, Thomas G., Cavataio, Joseph T. and Mills, Douglas 2016. New amphibian and reptile records from Illinois, USA. Herpetological Review 47 (4): 638 - get paper here
  • Arndt, Rudolt G. and Wayne A. Potter 1973. A Population of the Map Turtle, Graptemys geographica, in the Delaware River, Pennsylvania. Journal of Herpetology 7 (4): 375-377 - get paper here
  • BADJE, ANDREW F. & RICHARD A. STAFFEN. 2021. Geographic distribution: GRAPTEMYS GEOGRAPHICA (Northern Map Turtle). USA: WISCONSIN: Pepin Co. Herpetological Review 52 (1): 79. - get paper here
  • BANKS, KALEB M. & DRAKE A. PARKER. 2022. Geographic distribution: GRAPTEMYS GEOGRAPHICA (Northern Map Turtle). USA: MICHIGAN: Leelanau Co. Herpetological Review 53 (2): 261.
  • Ben-Ezra, E., G. Bulté & G. Blouin-Demers 2008. Are Locomotor Performance Coadapted to Preferred Basking Temperature in the Northern Map Turtle (Graptemys geographica) Journal of Herpetology 42 (2): 322-331. - get paper here
  • Berry, G. 2018. Geographic Distribution: Graptemys geographica (Northern Map Turtle). Herpetological Review 49 (1): 72. - get paper here
  • Bishop, S.C. 1921. The Map Turtle, Graptemys geographica (Le Suer) in New York Copeia 100: 80-81. - get paper here
  • Bolek, Matthew G. 1997. Geographic Distribution. Graptemys geographica. Herpetological Review 28 (2): 94 - get paper here
  • Bour, R. 2008. Global diversity of turtles (Chelonii; Reptilia) in freshwater. Hydrobiologia 595:593–598 - get paper here
  • Brown, Grover 2016. Geographic Distribution: Graptemys geographica (Northern Map Turtle). Herpetological Review 47 (4): 625 - get paper here
  • Brown, Grover J.; Luke Pearson, Gabrielle Berry & Will Selman 2020. Discovery of the Northern Map Turtle (Graptemys geographica LeSueur 1817) in Far Northeastern Mississippi Chelonian Conservation and Biology 19 (2): 256-261 - get paper here
  • Bulté, Grégory; Michelle B. Léveillée, Gabriel Blouin-Demers, Steven J. Cooke & Susan M. Bertram 2020. Observations on the Short-Term Effects of Motorboat Disturbance on the Use of Basking Sites by Female Northern Map Turtles Chelonian Conservation and Biology 19 (2): 302-304 - get paper here
  • Bulté, Grégory; Ryan R. Germain, Constance M. O'Connor, and Gabriel Blouin-Demers 2013. Sexual Dichromatism in the Northern Map Turtle, Graptemys geographica. Chelonian Conservation and Biology Jul 2013, Vol. 12, No. 1: 187-192. - get paper here
  • Butterfield, Brian P., Lisa M. Raine and M. Rachel Hobgood. 2014. Geographic Distribution: Graptemys geographica (northern map turtle). Herpetological Review 45 (3): 460 - get paper here
  • Cagle, Fred R. 1954. Two new species of the genus Graptemys. Tulane Studies in Zoology 1 (11): 165-186 - get paper here
  • Carrière, M.-A., G. Bulté & G. Blouin-Demers 2009. Spatial Ecology of Northern Map Turtles (Graptemys geographica) in a Lotic and a Lentic Habitat Journal of Herpetology 43 (4): 597-604. - get paper here
  • Casper, Gary S. 1997. Geographic Distribution. Graptemys geographica. Herpetological Review 28 (1): 49 - get paper here
  • Conant, Roger 1938. The Reptiles of Ohio. American Midland Naturalist 20 (1): 1-200 - get paper here
  • Conant,R. & Collins,J.T. 1991. A Field Guide to Reptiles and Amphibians of Eastern/Central North America, 3rd ed. Houghton Mifflin (Boston/New York), xx + 450 p.
  • Cornejo-Páramo, P., Lira-Noriega, A., Ramírez-Suástegui, C. et al. 2020. Sex determination systems in reptiles are related to ambient temperature but not to the level of climatic fluctuation. BMC Evol Biol 20: 103 - get paper here
  • Crother, B. I. (ed.) 2012. Standard Common and Current Scientific Names for North American Amphibians, Turtles, Reptiles, and Crocodilians, Seventh Edition. Herpetological Circular 39: 1-92
  • Daigle, C.;Desrosiers, A.;Bonin, J. 1994. Distribution and abundance of common map turtles, Graptemys geographica, in the Ottawa River, Quebec. Canadian Field-Naturalist 108 (1): 84-86
  • Duffus, Amanda L. J., Natalie B. Hays, Tiffany M. Ward and Michael J. Bender. 2014. Geographic Distribution: Graptemys geographica (northern map turtle). Herpetological Review 45 (1): 90 - get paper here
  • Duméril, A. M.C., G. BIBRON & A. DUMÉRIL 1854. Erpétologie générale ou Histoire Naturelle complète des Reptiles. Vol. 9. Paris, XX + 440 S. - get paper here
  • Duméril, A.M.C., and G. Bibron. 1835. Erpétologie Générale ou Histoire Naturelle Complète des Reptiles, Vol. 2. Librairie Encyclopédique de Roret, Paris, iv + 680 p. - get paper here
  • Dupuis-Desormeaux, M., McDonald, K., Moro, D., Reid, T., Agnew, C., Johnson, R., & MacDonald, S. E. 2021. A snapshot of the distribution and demographics of freshwater turtles along Toronto’s Lake Ontario coastal wetlands. Journal of Great Lakes Research 47(2): 283–294. - get paper here
  • Elmberg, J. 1980. Herpetological observations 77-78 [in Vernon county, Wisconsin]. Fältbiologerna Umea.
  • Ernst, Carl H.; Lovich, Jeffrey E. 2009. Turtles of the United States and Canada, 2nd edition. Johns Hopkins University Press, 827 pp. - get paper here
  • Ernst,C.H. and Barbour,R.W. 1989. Turtles of the World. Smithsonian Institution Press, Washington D.C. - London
  • FREEDBERG, STEVEN; ERIN M. MYERS 2012. Cytonuclear equilibrium following interspecific introgression in a turtle lacking sex chromosomes. Biological Journal of the Linnean Society 106: 405–417 - get paper here
  • Frum, W.G. 1947. Graptemys geographica in West Virginia Copeia 1947 (3): 211. - get paper here
  • GACHENY, MATTHEW; BRIAN DURKIN, TEAL RICHARDS-DIMITRIE & RICHARD A. SEIGEL. 2021. Implications of anthropogenic habitat modification on the diet of northern map turtles (Graptemys geographica). Herpetological Conservation and Biology 16(3): 482–490. - get paper here
  • Garman, H. 1890. The Differences Between the Geographic Turtles (Malacoclemmys geographicus and M. lesueuri.). Bull. Essex Institute 22: 70-83
  • Green, N.B., & Pauley, T.K. 1987. Amphibians and reptiles in West Virginia. Univ. of Pittsburgh Press, Pittsburgh, 241 pp.
  • HARTZELL, S. M 2020. Geographic Distribution: Graptemys geographica (Northern Map Turtle). USA: Pennsylvania: Montour Co. Herpetological Review 51: 73.
  • Hartzell, S. M. 2016. Geographic Distribution: Graptemys geographica (Northern Map Turtle). Herpetological Review 47(3): 422. - get paper here
  • Iverson, John B.; Geoffrey R. Smith, Jessica Rettig 2019. Body Size, Growth, and Longevity in Northern Map Turtles (Graptemys geographica) in Indiana. Journal of Herpetology 53 (4): 297-301 - get paper here
  • Jensen, John B.; Carlos D. Camp, Whit Gibbons, & Matt J. Elliott 2008. Amphibians and reptiles of Georgia. University of Georgia Press, 575 pp.
  • King, Richard B.; Oldham, Michael J.; Weller, Wayne F.; Wynn, Douglas. 1997. Historic and current amphibian and reptile distributions in the Island Region of Western Lake Erie. American Midland Naturalist 138(1):153-173 - get paper here
  • Kirkpatrick, David 1993. Map turtles of the United States. Reptile & Amphibian magazine (November/December): 7-17
  • Le Sueur, C.A. 1817. An account of an American species of Tortoise, not noticed in the systems. J. Acad. Nat. Sci. Philadelphia 1 (1): 86, pl. 5 - get paper here
  • Lechowicz, Christopher. 2008. Tour d'horizon de l'histoire naturelle, la taxonomie, la préservation et les problémes actuels des tortues géographiques du genre Graptemys (Agassiz, 1857). Chéloniens 11:30-45
  • Lindeman, P V & MItchell, J C; 2019. Geographic Distribution: Graptemys geographica (Common Map Turtle) USA: Virgina: Smyth Co. Herpetological Review 50 (2): 324-325 - get paper here
  • Lindeman, P V; 2019. Graptemys geographica (Northern Map Turtle) Coloration. Herpetological Review 50 (1): 124 - get paper here
  • Lindeman, P.V. 2006. Zebra and Quagga Mussels (Dreissena spp.) and Other Prey at a Lake Erie Population of Common Map Turtles (Emydidae: Graptemys geographica) Copeia 2006 (2): 268-273. - get paper here
  • Lindeman, P.V. 2009. ON THE TYPE LOCALITY AND TYPE SPECIMEN OF TESTUDO GEOGRAPHICA LESUEUR 1817. Chelonian Conservation and Biology 8(1): 95-98 - get paper here
  • Lindeman, P.V. 2017. Geographic Distribution: Graptemys geographica (Common Map Turtle). Herpetological Review 48 (4): 809 - get paper here
  • Lindeman, Peter V. 2016. Geographic Distribution: Graptemys geographica (Northern Map Turtle). Herpetological Review 47 (2): 252 - get paper here
  • Lindeman, Peter V. 2017. Graptemys geographica (Northern Map Turtle) Epibiont. Herpetological Review 48 (1): 177-178 - get paper here
  • Lindeman, Peter V. 2017. Geographic Distribution: Graptemys geographica (Common Map Turtle). Herpetological Review 48 (1): 122 - get paper here
  • LINDEMAN, PETER V. 2021. Fifteen New County Records for River Turtles in the Ohio River Drainage of West Virginia, USA. Herpetological Review 52 (2): 362–363
  • LINDEMAN, PETER V. 2022. Geographic distribution: GRAPTEMYS GEOGRAPHICA (Northern Map Turtle). USA: NEW YORK: Steuben Co. Herpetological Review 53 (3): 441.
  • Lindeman, Peter V. L 2020. A Few Moments with Turtles: The Value of Freshwater Chelonians as Watchable Urban Wildlife Spectacles Chelonian Conservation and Biology 19 (2): 291-297 - get paper here
  • McAtee, W.L. 1907. A list of the mammals, reptiles and batrachians of Monroe County, Indiana. Proc. Biol. Soc. Washington 20: 1-16 - get paper here
  • McCoy C J; Vogt R C 1990. Graptemys geographica (Le Sueur). Map turtle. Catalogue of American Amphibians and Reptiles 484: 1-4 - get paper here
  • MIller, Brian T. and Joyce L. Miller. 2011. Geographic Distribution: Graptemys geographica (northern map turtle). Herpetological Review 42 (3): 388 - get paper here
  • Miller, Brian T. and Marshall S. Baughman 2015. Geographic Distribution: Graptemys geographica (northern map turtle). Herpetological Review 46 (4): 564 - get paper here
  • Mitchell, J. C. & Reay, K.K. 1999. Atlas of amphibians and reptiles in Virginia. Specialty Publication 1, VA Dept of Game and Fisheries, 122 pp. - get paper here
  • Mitchell, J.C. 1994. The reptiles of Virginia. Virginia Department of Game and Inland Fisheries, ca. 350 pp.
  • Nagle, Roy D. & Travis J. Russell 2020. Nest Site Fidelity of Northern Map Turtles, Graptemys geographica Chelonian Conservation and Biology 19 (2): 209-216 - get paper here
  • Nagle, Roy D. and Justin D. Congdon 2016. Reproductive Ecology of Graptemys geographica of the Juniata River in Central Pennsylvania, with <br />Recommendations for Conservation. Herp. Cons. Biol. 11 (1) - get paper here
  • Nagle, Roy D.; Christopher L. Rowe, Christopher J. Grant, Emma R. Sebastian, and Benjamin E. Martin 2017. Abnormal Shell Shapes in Northern Map Turtles of the Juniata River, Pennsylvania, USA. Journal of Herpetology Mar 2018, Vol. 52, No. 1: 59-66. - get paper here
  • Nelson, S. K., Fitzpatrick, B. M. & Colclough, P. 2012. Geographic distribution: Graptemys geographica (northern map turtle). Herpetological Review 43: 615-616 - get paper here
  • OTTEN, J. G 2020. Twenty-four New County and River Drainage Records for Graptemys spp. for Iowa, USA. Herpetological Review 51: 284-286.
  • Ouellette, Mathieu and Jeffrey A. Cardille 2011. The Complex Linear Home Range Estimator: Representing the Home Range of River Turtles Moving in Multiple Channels. Chelonian Conservation and Biology Dec 2011, Vol. 10, No. 2: 259-265. - get paper here
  • Pappas, Michael J.; Justin D. Congdon, and Bruce J. Brecke 2017. Orientation in Five Species of Hatchling River Turtles Dispersing from Experimental Nests. Chelonian Conservation and Biology 16 (1): 3-11. - get paper here
  • Patch, C.L. 1925. Graptemys geographica in Canada Copeia 149: 95-96. - get paper here
  • Pearson, Luke 2016. Geographic Distribution: Graptemys geographica (Northern Map Turtle). Herpetological Review 47 (4): 625 - get paper here
  • Phillips, J G 2018. Geographic Distribution: Graptemys geographica (Northern Map Turtle). Herpetological Review 49 (3): 501 - get paper here
  • Phillips, JG 2016. Updated Geographic Distributions of Michigan Herpetofauna: a Synthesis of Old and New Sources. The Journal of North American Herpetology 2016: 45–69 - get paper here
  • Pierson, T. 2012. Geographic distribution: Graptemys geographica (northern map turtle). Herpetological Review 43: 303 - get paper here
  • Pitt, Amber L. and Max A. Nickerson 2012. Reassessment of the Turtle Community in the North Fork of White River, Ozark County, Missouri. Copeia 2012 (3): 367-374. - get paper here
  • Pitt, Amber L. and Max A. Nickerson 2014. Description and Comparison of Turtle Assemblages and Populations Located within a Spring-fed River. Herp. Cons. Biol. 9 (3): 475−483 - get paper here
  • Pluto, T.G. & E.D. Bellis 1986. Habitat Utilization by the Turtle, Graptemys geographica, Along a River Journal of Herpetology 20 (1): 22-31. - get paper here
  • Pluto, T.G. & E.D. Bellis 1988. Seasonal and Annual Movements of Riverine Map Turtles, Graptemys geographica Journal of Herpetology 22 (2): 152-158. - get paper here
  • Praschag P, Ihlow F, Flecks M, Vamberger M, Fritz U. 2017. Diversity of North American map and sawback turtles (Testudines: Emydidae: Graptemys). Zoologica Scripta 46: 675– 682 - get paper here
  • Praschag, Reiner 2023. Sägerücken- und Höckerschildkröten der Gattung Graptemys – eine artenreiche Gattung der Sumpfschildkröten. Elaphe 2023 (5): 12-23
  • Raimond, C. 2017. Geographic Distribution: Graptemys geographica (Northern Map Turtle). Herpetological Review 48 (2): 386 - get paper here
  • Richards-Dimitrie, Teal; Susan E. Gresens, Scott A. Smith, and Richard A. Seigel 2013. Diet of Northern Map Turtles (Graptemys geographica): Sexual Differences and Potential Impacts of an Altered River System. Copeia Sep 2013, Vol. 2013, No. 3: 477-484. - get paper here
  • Roble, Steven M. 2016. Geographic Distribution: Graptemys geographica (Northern Map Turtle). Herpetological Review 47 (2): 252 - get paper here
  • Ryan, T.J. & A. Lambert 2005. Prevalence and Colonization of Placobdella on Two Species of Freshwater Turtles (Graptemys geographica and Sternotherus odoratus) Journal of Herpetology 39 (2): 284-287. - get paper here
  • Say, T. 1824. On the fresh water and land Tortoises of the United States. J. Acad. Nat. Sci. Philadelphia 4 (2): 203-219 - get paper here
  • Schulte-Hostedde, Bridget. 2013. Northern Map Turtle - Tortue geographique (Graptemys geographica). The Canadian Herpetologist 3 (1): 4-6
  • Seidel, Michael E. & Carl H. Ernst 2017. A Systematic Review of the Turtle Family Emydidae. Vertebrate Zoology 67 (1): 1–122 - get paper here
  • Selman, Will & Peter V. Lindeman 2020. The Map Turtles and Sawbacks (Testudines: Emydidae: Graptemys): Two Centuries of Study and the Conservation Imperative Chelonian Conservation and Biology 19 (2): 151-154 - get paper here
  • Skryja, D. 2017. Geographic Distribution: Graptemys geographica (Northern Map Turtle). Herpetological Review 48 (2): 386 - get paper here
  • Smith, Geoffrey R.; Jessica E. Rettig & John B. Iverson 2020. Frequency of and Temporal Trends in Shell Anomalies in a Turtle Community in a Northern Indiana Lake Chelonian Conservation and Biology 19 (2): 277-282 - get paper here
  • SMITH, GEOFFREY R.; JOHN B. IVERSON & JESSICA E. RETTIG. 2022. Do observed sex ratios in a turtle community in northern Indiana vary over 35 years (1979–2014)? Amphib. Reptile Conserv. 16(1): 193–202. - get paper here
  • Smith, Geoffrey R.; John B. Iverson, and Jessica E. Rettig 2018. Frequency of Propeller Damage in a Turtle Community in a Northern Indiana, USA, Lake: a Long-term Study. Herp. Cons. Biol. 13 (3): 691–699 - get paper here
  • Stephens, P.R. & Wiens, J.J. 2003. Ecological diversification and phylogeny of emydid turtles. Biol. J. Linn. Soc. 79: 577-610 - get paper here
  • Stunkard, H. W. 1915. Notes on the trematode genus Telorchis with descriptions of new species. Journal of Parasitology. 2 (2): 57–66
  • Thomson, R. C., Spinks, P. Q., & Shaffer, H. B. 2018. Molecular phylogeny and divergence of the map turtles (Emydidae: Graptemys). Molecular Phylogenetics and Evolution, 121, 61–70 - get paper here
  • Thomson, Robert C.; Andrew M. Shedlock, Scott V. Edwards and H. Bradley Shaffer 2008. Developing markers for multilocus phylogenetics in non-model organisms: A test case with turtles. Molecular Phylogenetics and Evolution 49 (2): 514-525 - get paper here
  • Triplett, Ashley Noel 2016. Distribution and habitat use of map turtles (Graptemys) in the trans-Mississippi region of Louisiana. M.S. thesis, University of Louisiana at Monroe - get paper here
  • TTWG; Rhodin, A.G.J., Iverson, J.B., Bour, R., Fritz, U., Georges, A., Shaffer, H.B., and van Dijk, P.P. 2021. Turtles of the World: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status (9th Ed.). In: Rhodin, A.G.J., Iverson, J.B., van Dijk, P.P., Stanford, C.B., Goode, E.V., Buhlmann, K.A., and Mittermeier, R.A. (Eds.). Chelonian Research Monographs 8:1–472. doi:10.3854/crm.8.checklist.atlas.v9.2021. - get paper here
  • TTWG; Rhodin, A.G.J.; van Dijk, P.P.; Iverson, J.B. & Shaffer, H.B. [turtle taxonomy working group] 2010. Turtles of the World, 2010 Update: Annotated Checklist of Taxonomy, Synonymy, Distribution, and Conservation Status. Chelonian Research Monographs (ISSN 1088-7105) No. 5, doi:10.3854/crm.5.000.checklist.v3.2010 - get paper here
  • VanDeWalle, Terry 2022. The Natural History of the Snakes and Lizards of Iowa. University of Iowa Press, Iowa City, Iowa, 384 pp. ISBN: 978-1- 609388-37-9. [review in HR 54 (1): 151] - get paper here
  • Vogt, R.C.; Bulté, G. & Iverson, J.B. 2018. Graptemys geographica (LeSueur 1817) – Northern Map Turtle, Common Map Turtle. In: Rhodin, A.G.J., Iverson, J.B., van Dijk, P.P., Buhlmann, K.A., Pritchard, P.C.H., and Mittermeier, R.A. (Eds.). Conservation Biology of Freshwater Turtles and Tortoise Chelonian Research Monographs 5(11):104.1–18 - get paper here
  • WATSON, J., R. A. PALOSKI, J. DKAROW, G. JENSEN, J. ROBAIDEK, AND A. F. BADJE 2020. Geographic Distribution: Graptemys geographica (Northern Map Turtle). USA: Wisconsin: Adams Co. Herpetological Review 51: 73.
  • Welc, M & Bosma, K; 2019. Geographic Distribution: Graptemys geographica (Common Map Turtle) USA: Michigan: Benzie Co. Herpetological Review 50 (1): 100 - get paper here
  • WELC, MATTHEW & MONICA S. WALKER. 2021. Geographic distribution: GRAPTEMYS GEOGRAPHICA (Northern Map Turtle). USA: KENTUCKY: Franklin Co. Herpetological Review 52 (1): 79. - get paper here
  • White, D., Jr. & D. Moll 1991. Clutch Size and Annual Reproductive Potential of the Turtle Graptemys geographica in a Missouri Stream Journal of Herpetology 25 (4): 493-494. - get paper here
  • WILD, ERIK R. & RORI A. PALOSKI. 2022. Geographic distribution: GRAPTEMYS GEOGRAPHICA (Northern Map Turtle). USA: WISCONSIN: Dunn Co. Herpetological Review 53 (3): 441.
  • Wood, J.T. 1946. Graptemys geographica (Le Sueur) Added to Herpetofaunal List of Great Smoky Mountains National Park Copeia 1946 (3): 168. - get paper here
 
External links  
Is it interesting? Share with others:


Please submit feedback about this entry to the curator