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Tylotrochus
Taxonomy
Tylotrochus was named by Koken (1896) [Sepkoski's age data: Tr Ladi Tr Nori Sepkoski's reference number: 615].
It was reranked as Trochus (Tylotrochus) by Krumbeck (1924).
It was assigned to Trochus by Krumbeck (1924); to Proconulinae by Knight et al. (1960); and to Archaeogastropoda by Sepkoski (2002).
It was reranked as Trochus (Tylotrochus) by Krumbeck (1924).
It was assigned to Trochus by Krumbeck (1924); to Proconulinae by Knight et al. (1960); and to Archaeogastropoda by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1896 | Tylotrochus Koken |
| 1924 | Trochus (Tylotrochus) Krumbeck |
| 1960 | Tylotrochus Knight et al. p. 248 |
| 2002 | Tylotrochus Sepkoski |
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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. †Tylotrochus Koken 1896
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†Trochus (Tylotrochus) rotundatus Koken 1896
†Tylotrochus elongatus Bandel 1993
†Tylotrochus semipunctatus Braun 1841
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Invalid names: Trochus epimetheus Laube 1869 [synonym], Trochus eupator Laube 1869 [synonym], Trochus prometheus Laube 1869 [synonym], Trochus subpunctatus Klipstein 1843 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 7.28 | 2.45 | 10.7 | 9.80 | 3.39 |
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| Source: supero = superorder, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: base of the Anisian to the top of the Late/Upper Paleocene or 246.70000 to 56.00000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Anisian | China (Sichuan) | T. elongatus (119277) | |
| Julian | Italy | Trochus semipunctatus (137429) Trochus subpunctatus (145649) Ziziphinus semipunctatus (144631) | |
| Carnian - Norian | Indonesia (Timor) | T. rotundatus (205174) | |
| Late/Upper Pliensbachian | Germany (North Rhine-Westphalia) | T. subimbricatus (225394 225396) | |
| Middle Paleocene - Late/Upper Paleocene | USA (Texas) | T. sp. (84651) |