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Crassotornoceras
Taxonomy
Crassotornoceras was named by House and Price (1985) [Sepkoski's age data: D Fras-m D Fame-l Sepkoski's reference number: 304]. It is not extant.
It was assigned to Goniatitida by Sepkoski (2002); and to Tornoceratinae by Korn and Klug (2002), Korn (2006), Söte et al. (2021).
It was assigned to Goniatitida by Sepkoski (2002); and to Tornoceratinae by Korn and Klug (2002), Korn (2006), Söte et al. (2021).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1985 | Crassotornoceras House and Price |
| 2002 | Crassotornoceras Korn and Klug p. 155 |
| 2002 | Crassotornoceras Sepkoski |
| 2006 | Crassotornoceras Korn |
| 2021 | Crassotornoceras Söte et al. p. 250 |
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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. †Crassotornoceras House and Price 1985
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†Crassotornoceras annissi House and Price 1985
†Crassotornoceras belgicum Matern 1931
†Crassotornoceras crassum Matern 1931
†Crassotornoceras hetzeneggeri Söte et al. 2021
†Crassotornoceras isolatum Becker 1993
†Crassotornoceras nitidum Becker 1993
†Crassotornoceras nudum Söte et al. 2021
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 2.54 | 1.87 | 3.46 | 2.58 | 0.777 | |
| shell diameter | 4 | 5.16 | 3.95 | 6.45 | 5.38 | 1.35 | |
| shell inflation | 4 | 0.673 | 0.500 | 0.900 | 0.675 | 0.165 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Middle Frasnian to the top of the Late/Upper Frasnian or 379.00000 to 372.15000 Ma
Collections (14 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Frasnian | USA (New York) | C. crassum (136653 136739 136741 136742) | |
| Late/Upper Frasnian | Germany (Nordrhein-Westfalen) | C. belgicum (220482 220511) C. crassum (220481) C. crassum, C. nudum (220476) C. sp. (220477) C. sp., C. belgicum (220480) C. sp., C. crassum, C. belgicum, C. nudum, C. hetzeneggeri (220483) C. sp., C. crassum, C. hetzeneggeri (220479) | |
| Late/Upper Frasnian | United Kingdom (England) | C. annissi (135957) | |
| Late/Upper Frasnian | France (Alsace) | C. sp. (38675) |