Pantherophis obsoletus (English Wikipedia)

Burbrink FT, Lawson R (2007). "How and when did Old World ratsnakes disperse into the New World?". Molecular Phylogenetics and Evolution. 43 (1): 173–189. Bibcode:2007MolPE..43..173B. doi:10.1016/j.ympev.2006.09.009. PMID 17113316.
Pyron RA, Burbrink FT (2009). "Neogene diversification and taxonomic stability in the snake tribe Lampropeltini (Serpentes: Colubridae)". Molecular Phylogenetics and Evolution. 52 (2): 524–529. Bibcode:2009MolPE..52..524P. doi:10.1016/j.ympev.2009.02.008. PMID 19236930.
Burbrink FT (2001). "Systematics of the Eastern Ratsnake complex (Elaphe obsoleta)". Herpetological Monographs. 15: 1–53. doi:10.2307/1467037. JSTOR 1467037.
Gibbs, H. Lisle; Corey, Sarah J.; Blouin-Demers, Gabriel; Prior, Kent A.; Weatherhead, Patrick J. (2006). "Hybridization between mtDNA-defined phylogeographic lineages of black ratsnakes (Pantherophis spp.)". Molecular Ecology. 15 (12): 3755–3767. Bibcode:2006MolEc..15.3755G. doi:10.1111/j.1365-294X.2006.03056.x. PMID 17032272. S2CID 3727973.

dx.doi.org

Hammerson GA (2019). "Pantherophis obsoletus ". The IUCN Red List of Threatened Species 2019: e.T90069553A90069569. https://dx.doi.org/10.2305/IUCN.UK.2019-2.RLTS.T90069553A90069569.en. Downloaded on 05 July 2021.

forumpro.fr

reptilia.forumpro.fr

Found in Gaston county NC 8-21-19 species over 14’ in length. Pantherophis obsoletus obsoletus (Say, 1823). Reptilia.forumpro.fr. Retrieved on 2012-12-19.

gov.on.ca

nhic.mnr.gov.on.ca

"Elaphe obsoleta ". Natural Heritage Information Centre. Ontario Ministry of Natural Resources. Archived from the original on March 22, 2012. Retrieved October 19, 2010.

harvard.edu

ui.adsabs.harvard.edu

Burbrink FT, Lawson R (2007). "How and when did Old World ratsnakes disperse into the New World?". Molecular Phylogenetics and Evolution. 43 (1): 173–189. Bibcode:2007MolPE..43..173B. doi:10.1016/j.ympev.2006.09.009. PMID 17113316.
Pyron RA, Burbrink FT (2009). "Neogene diversification and taxonomic stability in the snake tribe Lampropeltini (Serpentes: Colubridae)". Molecular Phylogenetics and Evolution. 52 (2): 524–529. Bibcode:2009MolPE..52..524P. doi:10.1016/j.ympev.2009.02.008. PMID 19236930.
Gibbs, H. Lisle; Corey, Sarah J.; Blouin-Demers, Gabriel; Prior, Kent A.; Weatherhead, Patrick J. (2006). "Hybridization between mtDNA-defined phylogeographic lineages of black ratsnakes (Pantherophis spp.)". Molecular Ecology. 15 (12): 3755–3767. Bibcode:2006MolEc..15.3755G. doi:10.1111/j.1365-294X.2006.03056.x. PMID 17032272. S2CID 3727973.

herpsoftexas.org

Eastern Ratsnake Archived 2017-05-06 at the Wayback Machine, Herps of Texas

itis.gov

"Elaphe obsoleta ". Integrated Taxonomic Information System. Retrieved 29 November 2006.

jstor.org

Burbrink FT (2001). "Systematics of the Eastern Ratsnake complex (Elaphe obsoleta)". Herpetological Monographs. 15: 1–53. doi:10.2307/1467037. JSTOR 1467037.

mass.gov

Eastern Ratsnake. Pantherophis alleghaniensis. Natural Heritage Endangered Program. mass.gov

naherp.com

"Snakes". Herpetological Education & Research Project. Retrieved 2015-05-21.

nih.gov

pubmed.ncbi.nlm.nih.gov

Burbrink FT, Lawson R (2007). "How and when did Old World ratsnakes disperse into the New World?". Molecular Phylogenetics and Evolution. 43 (1): 173–189. Bibcode:2007MolPE..43..173B. doi:10.1016/j.ympev.2006.09.009. PMID 17113316.
Pyron RA, Burbrink FT (2009). "Neogene diversification and taxonomic stability in the snake tribe Lampropeltini (Serpentes: Colubridae)". Molecular Phylogenetics and Evolution. 52 (2): 524–529. Bibcode:2009MolPE..52..524P. doi:10.1016/j.ympev.2009.02.008. PMID 19236930.
Gibbs, H. Lisle; Corey, Sarah J.; Blouin-Demers, Gabriel; Prior, Kent A.; Weatherhead, Patrick J. (2006). "Hybridization between mtDNA-defined phylogeographic lineages of black ratsnakes (Pantherophis spp.)". Molecular Ecology. 15 (12): 3755–3767. Bibcode:2006MolEc..15.3755G. doi:10.1111/j.1365-294X.2006.03056.x. PMID 17032272. S2CID 3727973.

northwestern.edu

qrg.northwestern.edu

Black Rat Snake Info. Qrg.northwestern.edu. Retrieved on 2012-12-19.

purplemartin.org

Rat Snakes Archived 2012-11-22 at the Wayback Machine. Purplemartin.org. Retrieved on 2012-12-19.

reptarium.cz

reptile-database.reptarium.cz

Pantherophis obsoletus, The Reptile Database. www.reptile-database.org.

semanticscholar.org

api.semanticscholar.org

Gibbs, H. Lisle; Corey, Sarah J.; Blouin-Demers, Gabriel; Prior, Kent A.; Weatherhead, Patrick J. (2006). "Hybridization between mtDNA-defined phylogeographic lineages of black ratsnakes (Pantherophis spp.)". Molecular Ecology. 15 (12): 3755–3767. Bibcode:2006MolEc..15.3755G. doi:10.1111/j.1365-294X.2006.03056.x. PMID 17032272. S2CID 3727973.

si.edu

nationalzoo.si.edu

Fact Sheet at Smithsonian National Zoological Park Website Typically when found in homes, found in groups Archived 2016-08-25 at the Wayback Machine. Nationalzoo.si.edu. Retrieved on 2012-12-19.
Black snake profile at Smithsonian National Zoological Park website Archived 2016-08-25 at the Wayback Machine. Nationalzoo.si.edu. Retrieved on 2012-12-19.

state.mn.us

dnr.state.mn.us

Species profile: Minnesota DNR. Dnr.state.mn.us. Retrieved on 2012-12-19.

vipersgarden.at

Utiger U, Helfenberger N, Schätti B, Schmidt C, Ruf M, Ziswiler V (2002). "Molecular Systematics and Phylogeny of Old and New World ratsnakes, Elaphe Auct., and related genera (Reptilia, Squamata, Colubridae)" (PDF). Russian Journal of Herpetology. 9 (2): 105–124.

web.archive.org

"Elaphe obsoleta ". Natural Heritage Information Centre. Ontario Ministry of Natural Resources. Archived from the original on March 22, 2012. Retrieved October 19, 2010.
Eastern Ratsnake Archived 2017-05-06 at the Wayback Machine, Herps of Texas
Fact Sheet at Smithsonian National Zoological Park Website Typically when found in homes, found in groups Archived 2016-08-25 at the Wayback Machine. Nationalzoo.si.edu. Retrieved on 2012-12-19.
Rat Snakes Archived 2012-11-22 at the Wayback Machine. Purplemartin.org. Retrieved on 2012-12-19.
Black snake profile at Smithsonian National Zoological Park website Archived 2016-08-25 at the Wayback Machine. Nationalzoo.si.edu. Retrieved on 2012-12-19.
Elaphe obsoleta Archived 2009-04-14 at the Wayback Machine at The Center for North American Herpetology. Accessed 20 June 2008.

wikimedia.org

species.wikimedia.org

Hammerson GA (2019). "Pantherophis obsoletus ". The IUCN Red List of Threatened Species 2019: e.T90069553A90069569. https://dx.doi.org/10.2305/IUCN.UK.2019-2.RLTS.T90069553A90069569.en. Downloaded on 05 July 2021.
Wright AH, Wright AA (1957). Handbook of Snakes of the United States and Canada. Ithaca and London: Comstock. 1,105 pp. (in 2 volumes) (Seventh printing, 1985) ISBN 0-8014-0463-0. (Elaphe obsoleta obsoleta, pp. 230-234, Figure 72 + Map 24 on p. 235).
Conant R, Bridges W (1939). What Snake Is That? A Field Guide to the Snakes of the United States East of the Rocky Mountains. (with 108 drawings by Edmond Malnate). New York and London: D. Appleton-Century. Frontispiece map + viii + 163 pp. + Plates A-C, 1-32. (Elaphe obsoleta obsoleta, pp. 56-58 + Plate 8, Figure 23).
Utiger U, Helfenberger N, Schätti B, Schmidt C, Ruf M, Ziswiler V (2002). "Molecular Systematics and Phylogeny of Old and New World ratsnakes, Elaphe Auct., and related genera (Reptilia, Squamata, Colubridae)" (PDF). Russian Journal of Herpetology. 9 (2): 105–124.
Burbrink FT, Lawson R (2007). "How and when did Old World ratsnakes disperse into the New World?". Molecular Phylogenetics and Evolution. 43 (1): 173–189. Bibcode:2007MolPE..43..173B. doi:10.1016/j.ympev.2006.09.009. PMID 17113316.
Pyron RA, Burbrink FT (2009). "Neogene diversification and taxonomic stability in the snake tribe Lampropeltini (Serpentes: Colubridae)". Molecular Phylogenetics and Evolution. 52 (2): 524–529. Bibcode:2009MolPE..52..524P. doi:10.1016/j.ympev.2009.02.008. PMID 19236930.
Collins JT, Taggart TW (2008). "An alternative classification of the New World Rat Snakes (genus Pantherophis [Reptilia: Squamata: Colubridae])". Journal of Kansas Herpetology. 26: 16–18.