Bairdemys

Extinct genus of turtles

Bairdemys Temporal range: Late Oligocene-Late Miocene ~24–7.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Pleurodira
Family:	Podocnemididae
Subtribe:	†Stereogenyina
Genus:	†Bairdemys Gaffney & Wood 2002^[1]
Type species
†Bairdemys hartsteini Gaffney & Wood 2002
Species
†Bairdemys hartsteini Gaffney & Wood 2002^[2] †Bairdemys healeyorum Weems & Knight 2013^[3] †Bairdemys sanchezi Gaffney et al. 2008^[4] †Bairdemys thalassica Ferreira et al. 2015^[5] †Bairdemys venezuelensis Wood & Díaz 1971^[6] †Bairdemys winklerae Gaffney et al. 2008^[7]

Bairdemys is an extinct genus of side-necked turtles in the family Podocnemididae. The genus existed from the Late Oligocene to Late Miocene and its fossils have been found in South Carolina, Puerto Rico, Panama and Venezuela. The genus was described in 2002 by Gaffney & Wood and the type species is B. hartsteini.

Description

The first species in the genus described was B. venezuelensis as Podocnemis venezuelensis by Wood and Díaz de Gamero in 1971.^[8]

Species

†B. hartsteini Gaffney & Wood 2002^[2]
†B. healeyorum Weems & Knight 2013^[3]
†B. sanchezi Gaffney et al. 2008^[4]
†B. thalassica Ferreira et al. 2015^[5]
†B. venezuelensis Wood & Díaz 1971^[6]
†B. winklerae Gaffney et al. 2008^[7]

Phylogeny

Bairdemys was placed phylogenetically by Ferreira et al. in 2015.^[9]

Distribution

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Bairdemys fossil locations

Urumaco Formation

Alajuela Formation

Capadare & Castillo Formations

Cibao Formation

Chandler Bridge Formation

Fossils of Bairdemys have been found in:^[1]

Late Oligocene

Chandler Bridge Formation, Arikareean, South Carolina

Early-Mid Miocene

Cibao Formation, Hemingfordian, Puerto Rico
El Miedo Cave, Capadare and Castillo Formations, Laventan, Venezuela

Late Miocene

Alajuela Formation, earliest Clarendonian, Panama
Urumaco Formation, Chasicoan, Venezuela

References

^ ^a ^b Bairdemys at Fossilworks.org
^ ^a ^b Bairdemys hartsteini at Fossilworks.org
^ ^a ^b Bairdemys healeyorum at Fossilworks.org
^ ^a ^b Bairdemys sanchezi at Fossilworks.org
^ ^a ^b Bairdemys thalassica at Fossilworks.org
^ ^a ^b Bairdemys venezuelensis at Fossilworks.org
^ ^a ^b Bairdemys winklerae at Fossilworks.org
^ Gaffney et al., 2008
^ Ferreira et al., 2015, p.10

Bibliography

Domning, D.P (1997), "Fossil Sirenia of the West Atlantic and Caribbean Region. VI. Crenatosiren olseni (Reinhart, 1976)", Journal of Vertebrate Paleontology, 17 (2): 397–412, Bibcode:1997JVPal..17..397D, doi:10.1080/02724634.1997.10010984, retrieved 2019-02-20
Ferreira, Gabriel S.; Rincón, Ascanio D.; Solórzano, Andrés; Langer, Max C. (2015), "The last marine pelomedusoids (Testudines: Pleurodira): a new species of Bairdemys and the paleoecology of Stereogenyina" (PDF), PeerJ, 3: 1–29, doi:10.7717/peerj.1063, PMC 4493680, PMID 26157628, retrieved 2019-02-20
Gaffney, E.S.; Scheyer, T.M.; Johnson, K.G.; Bocquetin, J.; Aguilera, O.A. (2008), "Two new species of the side necked turtle genus, Bairdemys (Pleurodira, Podocnemididae), from the Miocene of Venezuela", Paläontologische Zeitschrift, 82 (2): 209–229, Bibcode:2008PalZ...82..209G, doi:10.1007/BF02988411, retrieved 2019-02-20
Gaffney, Eugene S.; Wood, Roger C. (2008), "Bairdemys, a New Side-Necked Turtle (Pelomedusoides: Podocnemididae) from the Miocene of the Caribbean", American Museum Novitates (3359): 1–28, CiteSeerX 10.1.1.575.7289, doi:10.1206/607.1, retrieved 2019-02-20
Lundberg, J.G.; Aguilera, O.A. (2003), "The late Miocene Phractocephalus catfish (Siluriformes: Pimelodidae) from Urumaco, Venezuela: additional specimens and reinterpretation as a distinct species", Neotropical Ichthyology, 1 (2): 97–109, doi:10.1590/S1679-62252003000200004, retrieved 2019-02-20
MacFadden, Bruce J.; Jones, Douglas S.; Jud, Nathan A.; Moreno Bernal, Jorge W.; Morgan, Gary S.; Portell, Roger W.; Pérez, Victor J.; Moran, Sean M.; Wood, Aaron R. (2017), "Integrated Chronology, Flora and Faunas, and Paleoecology of the Alajuela Formation, Late Miocene of Panama", PLoS ONE, 12 (1): 1–27, Bibcode:2017PLoSO..1270300M, doi:10.1371/journal.pone.0170300, PMID 28107398
MacPhee, R.D.E.; Wyss, A.R. (1990), "Oligo-Miocene vertebrates from Puerto Rico, with a catalog of localities", American Museum Novitates (2965): 1–45, hdl:2246/5121?show=full, retrieved 2019-02-20
Sánchez Villagra, M.R.; Burnham, R.J.; Campbell, D.C.; Feldmann, R.M.; Gaffney, E.S.; Kay, R.S.; Lozsan, R.; Purdy, R.; Thewissen, J.G.M. (2000), "A new near-shore marine fauna and flora from the early Neogene of northwestern Venezuela", Journal of Paleontology, 74 (5): 957–968, Bibcode:2000JPal...74..957S, doi:10.1666/0022-3360(2000)074<0957:ANNSMF>2.0.CO;2, retrieved 2019-02-20
Scheyer, T.M.; Delfino, M. (2016), "The late Miocene caimanine fauna (Crocodylia: Alligatoroidea) of the Urumaco Formation, Venezuela", Palaeontologia Electronica, 19: 1–57, retrieved 2019-02-20
Scheyer, T.M.; Aguilera, O.A.; Delfino, M.; Fortier, D.C.; Carlini, A.A.; Sánchez, R.; Carrillo Briceño, J.D.; Quiroz, L.; Sánchez Villagra, M.R. (2013), "Crocodylian diversity peak and extinction in the late Cenozoic of the northern Neotropics", Nature Communications, 4: 1–9, Bibcode:2013NatCo...4.1907S, doi:10.1038/ncomms2940, PMID 23695701, retrieved 2019-02-20

Allopleuron
Atlantochelys
Angolachelys
Anomalochelys
Araripemys
Araripemydidae
Archelon
Arvinachelys
Aurorachelys
Baenoidea
Basilemys
Bouliachelys
Caririemys
Cearachelys
Chelosphargis
Chubutemys
Chupacabrachelys
Compsemys victa
Corsochelys
Cratochelone
Ctenochelys
Desmatochelys
- Desmatochelys padillai
Emarginachelys
Foxemys
Gigantatypus
Gilmoremys
Glyptops
Hoplochelys
Hoyasemys
Iserosaurus
Jeholochelys
Jiangxichelys
Kinkonychelys
Kirgizemys
Khunnuchelys
Kurmademys
Leyvachelys
Liaochelys
Lindholmemydidae
Lomalatachelys
Nanhsiungchelyidae
Neurankylus
Notochelone
Ocepechelon
Ordosemys
Paracryptodira
Patagoniaemys
Peritresius
Polysternon
Pleurosternon
Prochelidella
Protostega
Protostegidae
Pneumatoarthrus
Rhinochelys
Sankuchemys
Santanachelys
Sinemys
Terlinguachelys
Toxochelys
Trionyx kansaiensis
Yaminuechelys

Paleogene
and
Neogene

Pleistocene

Recent

Testudines

Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Diapsida
Order: Testudines

Suborder

Superfamily

Family

Genus

Cryptodira

Chelonioidea
(Sea turtles)

Cheloniidae	†Allopleuron Caretta †Carolinochelys Chelonia †Eochelone Eretmochelys †Gigantatypus †Glarichelys †Itilochelys Lepidochelys †Mexichelys †Miocaretta Natator †Pacifichelys †Syllomus †Tasbacka
Dermochelyidae	†Arabemys †Corsochelys †Cosmochelys Dermochelys †Eosphargis †Mesodermochelys †Psephophorus
	†Euclastes †Peritresius †Procolpochelys †Protosphargis †Puppigerus

Kinosternoidea

Dermatemydidae	Dermatemys
Kinosternidae	Claudius †Hoplochelys Kinosternon Staurotypus Sternotherus

Testudinoidea

Emydidae	†Acherontemys Chrysemys Clemmys Deirochelys Emys Actinemys Emydoidea Glyptemys Graptemys Malaclemys Pseudemys Terrapene Trachemys †Wilburemys
Geoemydidae	Batagur †Banhxeochelys Cuora Cyclemys Geoclemys Geoemyda Hardella Heosemys Leucocephalon Malayemys Mauremys Melanochelys Morenia Notochelys Orlitia Pangshura Rhinoclemmys Sacalia Siebenrockiella Vijayachelys
Platysternidae	Platysternon
Testudinidae	Aldabrachelys Astrochelys Centrochelys Chelonoidis Chersina Cylindraspis †Cymatholcus †Floridemys Geochelone Gopherus †Hadrianus †Hesperotestudo Homopus Indotestudo Kinixys Malacochersus Manouria †Megalochelys †Oligopherus Psammobates Pyxis †Solitudo Stigmochelys †Stylemys Testudo

Trionychia

Carettochelyidae	†Allaeochelys †Anosteira Carettochelys
Trionychidae	Amyda Apalone †Axestemys Chitra Cyclanorbis Cycloderma †Drazinderetes Dogania †Gilmoremys †Hutchemys †Khunnuchelys Lissemys Nilssonia Palea †Palaeoamyda Pelochelys Pelodiscus Rafetus Trionyx
	†Basilochelys †Sinaspideretes

Chelydridae	Chelydra †Chelydrops †Chelydropsis †Emarginachelys †Macrocephalochelys Macrochelys †Planiplastron †Protochelydra
†Nanhsiungchelyidae	†Anomalochelys †Basilemys †Jiangxichelys
†Protostegidae	†Alienochelys †Archelon †Atlantochelys †Bouliachelys †Calcarichelys †Cratochelone †Desmatochelys †Iserosaurus †Notochelone †Ocepechelon †Pneumatoarthrus †Protostega †Rhinochelys †Santanachelys †Terlinguachelys
	†Adocus †Argillochelys †Bashuchelys †Ctenochelys †Prionochelys †Toxochelys

Pleurodira

†Araripemydidae	†Araripemys
†Bothremydidae	†Araiochelys †Arenila †Azabbaremys †Bothremys †Cearachelys †Chedighaii †Chupacabrachelys †Eotaphrosphys †Foxemys †Galianemys †Ilatardia †Inaechelys †Itapecuruemys †Jainemys †Kinkonychelys †Kurmademys †Labrostochelys †Nigeremys †Phosphatochelys †Polysternon †Puentemys †Rosasia †Rhothonemys †Sankuchemys †Taphrosphys †Ummulisani †Zolhafah
Chelidae	Acanthochelys Chelodina Chelus Elseya Elusor Emydura Hydromedusa †Lomalatachelys Mesoclemmys Myuchelys Phrynops Platemys †Prochelidella Pseudemydura Rheodytes Rhinemys †Yaminuechelys
Pelomedusidae	Pelomedusa Pelusios
Podocnemididae	†Albertwoodemys †Bauruemys †Brontochelys †Caninemys †Carbonemys †Cerrejonemys †Cordichelys Erymnochelys †Lapparentemys †Latentemys Peltocephalus Podocnemis †Stupendemys
†Sahonachelyidae	†Sahonachelys †Sokatra

	†Caribemys †Caririemys †Tacuarembemys

Phylogenetic arrangement of turtles based on Turtles of the World 2017 Update: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status. † = extinct.