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Metacoceras
Taxonomy
Metacoceras was named by Hyatt (1883) [Sepkoski's age data: C Step-l P Guad-u Sepkoski's reference number: 524].
It was reranked as Temnocheilus (Metacoceras) by Fliegel (1901).
It was assigned to Temnocheilus by Fliegel (1901); to Nautilida by Sepkoski (2002); and to Tainoceratidae by Teichert et al. (1964), Shimanskiy (1967) and Niko and Mapes (2016).
It was reranked as Temnocheilus (Metacoceras) by Fliegel (1901).
It was assigned to Temnocheilus by Fliegel (1901); to Nautilida by Sepkoski (2002); and to Tainoceratidae by Teichert et al. (1964), Shimanskiy (1967) and Niko and Mapes (2016).
Species
M. altilobatum, M. artiense, M. baylorense, M. bituberculatum, M. bowmani, M. carinatum, M. cheneyi, M. chittidilense, M. copei, M. cornutum, M. dorashamense, M. dorsoarmatum, M. dubium, M. hayi, M. hunanense, M. inconspicuum, M. knighti, M. kruglovi, M. medlicottianum, M. orthogonium, M. parartiense, M. sangamonense, M. subpiszovi, M. subquadratum, M. sulciferum, M. unklesbayi (syn. M. biseriatum), M. vagans
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1883 | Metacoceras Hyatt |
| 1901 | Temnocheilus (Metacoceras) Fliegel p. 119 |
| 1964 | Metacoceras Teichert et al. p. 414 |
| 1967 | Metacoceras Shimanskiy p. 89 |
| 2002 | Metacoceras Sepkoski |
| 2016 | Metacoceras Niko and Mapes p. 73 |
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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. †Metacoceras Hyatt 1883
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†Metacoceras altilobatum Ruzhentsev and Shimanskiy 1954
†Metacoceras artiense Kruglov 1928
†Metacoceras baylorense Miller and Youngquist 1949
†Metacoceras bituberculatum Miller and Youngquist 1949
†Metacoceras bowmani Miller and Breed 1964
†Metacoceras carinatum Girty 1933
†Metacoceras cheneyi Miller and Youngquist 1947
†Metacoceras chittidilense Reed 1944
†Metacoceras copei Tucker 1976
†Metacoceras cornutum Girty 1911
†Metacoceras dorashamense Shimansky 1965
†Metacoceras dorsoarmatum Abich 1878
†Metacoceras dubium Hyatt 1891
†Metacoceras hayi Hyatt 1891
†Metacoceras hunanense Xu 1977
†Metacoceras inconspicuum Hyatt 1891
†Metacoceras knighti Miller and Thomas 1936
†Metacoceras kruglovi Ruzhentsev and Shimanskiy 1954
†Metacoceras medlicottianum Waagen 1879
†Metacoceras orthogonium Ruzhentsev and Shimanskiy 1954
†Metacoceras parartiense Ruzhentsev and Shimanskiy 1954
†Metacoceras sangamonense Meek and Worthen 1860
†Metacoceras subpiszovi Ruzhentsev and Shimanskiy 1954
†Metacoceras subquadratum Ruzhentsev and Shimanskiy 1954
†Metacoceras sulciferum Miller and Thomas 1936
†Metacoceras unklesbayi Miller and Youngquist 1949
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Invalid names: Metacoceras biseriatum Miller and Unklesbay 1942 [replaced]
†Metacoceras vagans Miller and Owen 1937
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 32 | 24.3 | 8.70 | 96.0 | 23.8 | 18.4 | |
| shell diameter | 32 | 56.3 | 11.4 | 290.0 | 57.5 | 49.8 | |
| shell inflation | 32 | 18.8 | 9.00 | 47.5 | 19.2 | 9.71 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Kinderscoutian to the top of the Changhsingian or 321.80000 to 252.17000 Ma
Collections (101 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pendleian - Yeadonian | United Kingdom (England) | M. sp. (41223 41225) | |
| Morrowan | USA (Arkansas) | M. sp. (43417 43420) | |
| Bashkirian | Ukraine | M. perelegans (228670) M. sp. (228674) | |
| Pennsylvanian | USA (Ohio) | M. mcchesneyi (211421) | |
| Kinderscoutian | United Kingdom (England) | M. sp. (8267) | |
| Westphalian | United Kingdom (England) | M. sp. (162355) | |
| Moscovian | USA (Kentucky) | M. sp. (195795) | |
| Moscovian | Ukraine | M. sp. (166829) | |
| Moscovian | USA (Arkansas) | M. sp. (158010) | |
| Kashirian - Myachkovian | USA (New Mexico) | M. sp. (46548) | |
| Desmoinesian | USA (Missouri) | M. sp. (70382) | |
| Desmoinesian | USA (Pennsylvania) | M. sangamonensis (184081) | |
| Desmoinesian | USA (Texas) | M. sp. (216619) | |
| Desmoinesian | USA (Oklahoma) | M. sinuosum, M. cornutum (91530) M. sp. (8639) | |
| Kasimovian | USA (Oklahoma) | M. sp. (177750) M. vagans (170338) | |
| Missourian | USA (Pennsylvania) | Temnocheilus winslowi (184105) | |
| Gzhelian | USA (Utah) | M. sp. (39922) | |
| Virgilian | USA (Maryland) | M. marylandica (118827) | |
| Virgilian | USA (Texas) | M. cornutum (217897 217901 217906 217908 217932 217977 217979 217992 218010 218014 218017 218022 218027) M. quadratum (220414 225019) M. quadratum, M. cornutum (217893 217905) | |
| Virgilian | USA (Illinois) | M. sp., M. copei (50219) | |
| Virgilian | USA (New Mexico) | M. sp. (10005 146819 146828) | |
| Asselian | USA (Wyoming) | M. sp., M. knighti, M. sulciferum (113082) | |
| Asselian | USA (Kansas) | M. sp. (12188 12441) | |
| Asselian - Sakmarian | USA (Texas) | M. sp. (75646) | |
| Artinskian | Kazakhstan | M. parartiense (116788 116791) M. subpiszovi, M. artiense, M. parartiense, M. orthogonium, M. subquadratum (102148) | |
| Artinskian | Russian Federation | M. kruglovi, M. orthogonium, M. altilobatum (116795) M. parartiense (116794 116797) M. parartiense, M. kruglovi, M. orthogonium (116796) | |
| Artinskian | USA (Nevada) | M. sp. (10650) | |
| Artinskian | USA (Nebraska) | M. sp. (82796) | |
| Artinskian | USA (Utah) | M. sp. (10651) | |
| Artinskian | USA (Texas) | M. cheneyi (90007) | |
| Artinskian | Russian Federation (Bashkortostan) | M. parartiense, M. kruglovi (217205) | |
| Kungurian | USA (New Mexico) | M. biseriatum (83179) M. unklesbayi (89627) | |
| Kungurian | USA (Arizona) | M. bowmani (86148) M. sp. (52898) | |
| Kungurian | USA (Texas) | M. baylorense (113427) M. inconspicuum (90740 90745 90747) M. sp. (43492 113421) | |
| Kungurian | USA (Nevada) | M. sp. (10443 10444 10472 10647 38827) | |
| Guadalupian | Mexico (Guerrero) | M. sp. (232715) | |
| Roadian | USA (Arizona) | M. biseriatum (113085) M. sp. (80924) | |
| Roadian | Russian Federation | M. sp. (109483) | |
| Roadian - Wordian | Indonesia (Sumatra) | Nautilus tuberosus (121984) | |
| Wordian | Iran (Tehran) | M. sp. (43294) | |
| Wordian | Pakistan | M. sp. (125807) | |
| Capitanian | Pakistan | Gyroceras medlicottianum (126277) | |
| Wuchiapingian | China (Guizhou) | M. sp. (112103) | |
| Wuchiapingian | Azerbaijan | M. dorashamense (110595 113611) M. dorsoarmatum (94948) Nautilus dorsoarmatus (232366) | |
| Wuchiapingian | Armenia | M. dorsoarmatum (110773) | |
| Wuchiapingian | China (Jiangxi) | M. sp. (101627) | |
| Wuchiapingian | Iran | M. dorashamense (63892) M. dorashamense, M. dorsoarmatum (119043) | |
| Wuchiapingian | Pakistan | Gyroceras medlicottianum (119527) Gyroceras medlicottianum, M. chittidilense (126264) M. chittidilense (126008) | |
| Changhsingian | Pakistan | M. sp. (110953 126934) | |
| Changhsingian | China (Hunan) | M. hunanense (124023) | |
| Changhsingian | Iran | M. dorashamensis (63893) M. sp. (119081) | |
| Changhsingian | China (Zhejiang) | M. sp. (121646) |