| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Compsemys
Taxonomy
Compsemys was named by Leidy (1856). It was considered monophyletic by Joyce and Anquetin (2019).
It was assigned to Chelonia by Leidy (1860); to Emydidae by Cope (1884); to Baenidae by Gaffney (1972) and Estes (1976); to Neurankylidae by Carroll (1988); to Cryptodira by Bryant (1989); to Dermatemydidae by Hay (1908), Hay (1930), Estes (1964), Estes and Berberian (1970) and Burger (2007); to Pleurosternidae by Hay (1902), Holroyd and Hutchison (2002), Hutchison and Holroyd (2003), Milner (2004), Joyce et al. (2011), Sullivan et al. (2012), Karl et al. (2012), Hutchison et al. (2013) and Lichtig and Lucas (2015); to Compsemydidae by Pérez-García et al. (2015) and López-Conde et al. (2018); and to Paracryptodira by Lyson and Joyce (2011), Pérez-García (2012) and Joyce and Anquetin (2019).
It was assigned to Chelonia by Leidy (1860); to Emydidae by Cope (1884); to Baenidae by Gaffney (1972) and Estes (1976); to Neurankylidae by Carroll (1988); to Cryptodira by Bryant (1989); to Dermatemydidae by Hay (1908), Hay (1930), Estes (1964), Estes and Berberian (1970) and Burger (2007); to Pleurosternidae by Hay (1902), Holroyd and Hutchison (2002), Hutchison and Holroyd (2003), Milner (2004), Joyce et al. (2011), Sullivan et al. (2012), Karl et al. (2012), Hutchison et al. (2013) and Lichtig and Lucas (2015); to Compsemydidae by Pérez-García et al. (2015) and López-Conde et al. (2018); and to Paracryptodira by Lyson and Joyce (2011), Pérez-García (2012) and Joyce and Anquetin (2019).
Synonyms
|
Synonymy list
| Year | Name and author |
|---|---|
| 1856 | Compsemys Leidy p. 312 |
| 1856 | Emys obscurus Leidy p. 312 |
| 1857 | Emys obscurus Leidy p. 90 |
| 1860 | Compsemys Leidy p. 152 |
| 1860 | Emys obscurus Leidy p. 153 |
| 1884 | Compsemys Cope |
| 1902 | Compsemys Hay p. 437 |
| 1902 | Compsemys obscurus Hay p. 437 |
| 1908 | Glyptops depressus Hay figs. Text-figs. 33, 34 |
| 1908 | Compsemys Hay p. 233 |
| 1908 | Compsemys obscura Hay p. 235 figs. Plate 34, fig. 4 |
| 1930 | Glyptops depressus Hay p. 70 |
| 1930 | Compsemys Hay p. 88 |
| 1930 | Compsemys obscurus Hay p. 88 |
| 1964 | Compsemys Estes p. 98 |
| 1970 | Compsemys Estes and Berberian p. 5 |
| 1972 | Compsemys Gaffney pp. 249, 289 fig. 37 |
| 1976 | Compsemys Estes p. 507 |
| 1988 | Compsemys Carroll |
| 1989 | Compsemys Bryant p. 41 |
| 2002 | Compsemys Holroyd and Hutchison p. 181 |
| 2003 | Compsemys Hutchison and Holroyd |
| 2004 | Compsemys Milner p. 1445 |
| 2007 | Compsemys Burger p. 144 |
| 2011 | Compsemys Joyce et al. p. 79 |
| 2011 | Compsemys Lyson and Joyce p. 790 |
| 2012 | Compsemys Karl et al. |
| 2012 | Compsemys Pérez-García |
| 2012 | Compsemys Sullivan et al. |
| 2013 | Compsemys Hutchison et al. |
| 2015 | Compsemys Lichtig and Lucas |
| 2015 | Compsemys Pérez-García et al. |
| 2018 | Compsemys López-Conde et al. |
| 2019 | Compsemys Joyce and Anquetin |
Is something missing? Join the Paleobiology Database and enter the data
|
|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Compsemys Leidy 1856
show all | hide all
†Compsemys victa Leidy 1856
hide
Invalid names: Compsemys parva Hay 1910 [synonym], Compsemys puercensis Gilmore 1919 [synonym], Compsemys torrejonensis Gilmore 1919 [synonym], Compsemys vafer Hay 1910 [synonym]
Invalid names: Emys obscurus Leidy 1856 [nomen dubium], Glyptops depressus Hay 1908 [nomen dubium]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. S. Gaffney 1972 | 1) shell shape oval, sides parallel; 2) ornamentation consisting of small, close-set enameled tubercles, not known in any other turtles; 3) nuchal scute small, wide, with very short anteroposterior length; 4) no anterior emargination of carapace; first peripherals meeting medially in front of nuchal, preventing it from being exposed on anterior edge of carapace; 5) preneural bone absent; 6) first vertebral larger than other vertebrals; rectangular, without supracostal scutes laterally; 7) supramarginal scutes absent; 8) last vertebral enclosed posteriorly by last pair of marginals meeting in midline, last marginals rectangular; 9) posterior edge of carapace not emarginated; 10) posterior edge of carapace not scalloped; 11) xiphiplastral notch present, shallow, varying from U-shaped to V-shaped; 12) paired intergulars placed at anterolateral corners of plastron separated by very wide, paired intergulars; humero-intergular sulcus and pectoro-humeral sulcus converge toward each other in midline. |
Measurements
No measurements are available
|
|
||||
|
|||||
|
|
||||
| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Late/Upper Santonian to the top of the Paleocene or 85.80000 to 56.00000 Ma
Collections (157 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Santonian | Canada (Alberta) | C. sp. (48834 71485) | |
| Late/Upper Santonian - Early/Lower Campanian | USA (Montana) | C. sp. (142497) | |
| Early/Lower Campanian | USA (Utah) | C. sp. (14421) | |
| Late/Upper Campanian | USA (Utah) | C. victa (187664 187668 187669 187679 187681 187695 187705 187713 187715) | |
| Late/Upper Campanian | Mexico (Chihuahua) | C. victa (35707) | |
| Late/Upper Campanian | Mexico (Coahuila) | C. sp. (24261 35360) C. victa (24257 24259) | |
| Late/Upper Campanian | USA (New Mexico) | C. sp. (36449 76106 138835 154342 154386 154423 154428 154431 154434 154628 154629 154630 154631 222078) | |
| Late/Upper Campanian | Mexico (Baja California) | C. victa (197024) | |
| Middle Campanian | USA (Utah) | C. sp. (61844) | |
| Maastrichtian | USA (Montana) | C. victa (47626) | |
| Maastrichtian | USA (North Dakota) | C. victa (45135 45312 45313 45380) | |
| Maastrichtian | USA (South Dakota) | C. victa (45391) | |
| Lancian | USA (South Dakota) | C. victa (48235) | |
| Lancian | USA (Montana) | C. sp. (14515) C. sp., C. victa (14512 14513 14533 14568 14580) C. victa (14508 14525 14535 14536 14549 14560 14563 14613 14653 14654) | |
| Lancian | USA (Wyoming) | C. sp. (14543 14565 75431 75439) C. sp., C. victa (14505 14570) C. victa (14514 14519 14557 14566) C. victus (14542 70343 75287 75298 75429) | |
| Lancian | USA (Colorado) | C. victa (14640 96082 176847) | |
| Lancian | USA (North Dakota) | C. victa (14610 14620 137601 137705 137706 137707 137715 137724 137728) | |
| Late/Upper Maastrichtian | USA (Colorado) | C. victa (176740) | |
| Late/Upper Maastrichtian | Canada (Alberta) | C. victa (58157) | |
| Late/Upper Maastrichtian | USA (South Dakota) | C. sp. (150891 150892 150893) C. victa (45388) Testudines indet. (47034) | |
| Late/Upper Maastrichtian | USA (Montana) | C. victa (13142 189003) | |
| Late/Upper Maastrichtian | USA (Wyoming) | C. sp. (137798) C. sp., C. victa (14585) | |
| Late/Upper Maastrichtian | USA (North Dakota) | C. victa (45099 45109 45110 45111 45114 45117 45118 45119 45128 45133 45134 45136 45143 45144 45145 45299 45381 137718 137720) C. victa, Emys obscurus (127733) | |
| Late/Upper Maastrichtian | USA (New Mexico) | C. sp. (47819 62534 171027) | |
| Pu1 | USA (Montana) | C. sp. (14762) | |
| Puercan | USA (Montana) | C. victa (14766) | |
| Puercan | USA (Utah) | C. victa (14670 14692 14736 14739 14748 14790) | |
| Puercan | USA (Wyoming) | C. victa (14805) | |
| Puercan | USA (New Mexico) | C. puercensis (128449) | |
| Puercan | USA (Colorado) | C. sp. (206186 209884 209920 209967 209992 210028 210038) C. victa (14658 118484 176744 176747 176750 176755 176852 176859 176863 176864 176865 176868) | |
| Puercan - Torrejonian | USA (New Mexico) | C. parva (128453) C. sp. (131857) C. vafer (128452) | |
| Paleocene | USA (New Mexico) | C. victa (128451) | |
| Torrejonian | USA (New Mexico) | C. victa, C. torrejonensis (128450) | |
| Torrejonian | USA (Montana) | C. victa (14874) | |
| Torrejonian | USA (Utah) | C. victa (14830 14883) | |
| Ti3 | USA (Colorado) | C. victa (99821) | |
| Clarkforkian | USA (Colorado) | C. sp. (176833) |