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Bactroceras
Taxonomy
Bactroceras was named by Holm (1898) [Sepkoski's age data: O Llvi-l O Llde-l Sepkoski's reference number: 298,524]. Its type is Bactroceras avus.
It was assigned to Baltoceratidae by Teichert et al. (1964), Crick (1981), Evans (2005), Kröger and Evans (2011) and Kröger and Lefebvre (2012).
It was assigned to Baltoceratidae by Teichert et al. (1964), Crick (1981), Evans (2005), Kröger and Evans (2011) and Kröger and Lefebvre (2012).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1898 | Bactroceras Holm p. 357 |
| 1932 | Eobactrites Schindewolf |
| 1958 | Eobactrites Sweet |
| 1964 | Bactroceras Teichert et al. p. 155 |
| 1964 | Eobactrites Teichert et al. p. 501 |
| 1981 | Bactroceras Crick p. 227 |
| 2005 | Bactroceras Evans |
| 2011 | Bactroceras Kröger and Evans |
| 2012 | Bactroceras Kröger and Lefebvre |
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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. †Bactroceras Holm 1898
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†Bactroceras angustisiphonatum Rüdiger 1891
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Invalid names: Bactroceras guichiense Ying 1989 [synonym], Bactroceras jingshanlingense Zou 1987 [synonym], Bactroceras latisiphonatum Glenister 1952 [synonym], Bactroceras wilsoni Flower 1968 [synonym], Irianoceras antiquum Kobayashi and Burton 1971 [synonym]
†Bactroceras avus Holm 1898
†Bactroceras gossei Etheridge 1893
†Bactroceras mourguesi Thoral 1935
†Bactroceras sandbergeri Barrande 1867
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Invalid names: Tretoceras parvulum Barrande 1868 [synonym]
Invalid names: Eobactrites Schindewolf 1932 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2004 | |||||
Collections (35 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tremadoc | China (Hunan) | B. sp. (7703) | |
| Tremadocian | France (Languedoc-Roussillon) | B. mourguesi (101704) | |
| Tremadocian - Floian | France (Languedoc-Roussillon) | B. mourguesi (101708 101709 101710 101713) | |
| Ordovician | Indonesia (unknown) | Irianoceras antiquum (64611) | |
| Arenigian | Svalbard and Jan Mayen | B. angustisiphonatum (89288) | |
| Dawan | China (Hunan) | B. sp. (7691) | |
| Arenig | China (Guizhou) | B. sp. (4760) | |
| Arenig | China (Hunan) | B. sp. (7701) | |
| Floian | France (Languedoc-Roussillon) | B. mourguesi (101711 101714 101715) | |
| Floian | Morocco (Anti Atlas) | B. sp. (166731) | |
| Floian | Bolivia (Tarija) | B. avus (88177) | |
| Fennian | United Kingdom (Wales) | B. sandbergeri (89414) | |
| Rangerian | USA (Nevada) | B. sp. (297) B. wilsoni (104459) | |
| Whiterockian | USA (Nevada) | B. wilsoni (233163) | |
| Abereiddian | United Kingdom (Wales) | B. sandbergeri (89420) | |
| Llanvirn | Czech Republic (Prague) | Eobactrites sp. (76458) | |
| Sarka | Czech Republic | Eobactrites sp. (3857) | |
| Early/Lower Llandeilo | China (Hubei) | B. sp. (4711) | |
| Aseri - Lasnamagi | Norway (Oslo Asker) | Eobactrites sandbergeri (163963) | |
| Lasnamagi | Germany (Mecklenburg-Western Pomerania) | Endoceras angustisiphonatum (89413) | |
| Lasnamagi | Sweden | B. sp. (2933) | |
| Late/Upper Llanvirn | China (AnHui) | B. sp. (7852) | |
| Middle Llandeilo - Late/Upper Llandeilo | China (Hubei) | B. sp. (4710) | |
| Longvillian - Marshbrookian | China (ShanXi) | B. sp. (7884) | |
| Longvillian - Marshbrookian | China (Anhui) | B. sp. (7836) | |
| Eastonian - Onnian | Australia (New South Wales) | B. sp. (2661 2709 2746) | |
| Eastonian - Bolindian | Australia (New South Wales) | B. sp. (2748) |