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Cyclodorippidae
Taxonomy
Cyclodorippidae was named by Ortmann (1892). It is extant.
It was assigned to Brachyura by Ortmann (1892); to Dromiacea by Ahyong et al. (2007); and to Cyclodorippoidea by Karasawa (1993), Schweitzer (2001), Schweitzer et al. (2010), Schweitzer et al. (2017) and Nyborg and Garassino (2020).
It was assigned to Brachyura by Ortmann (1892); to Dromiacea by Ahyong et al. (2007); and to Cyclodorippoidea by Karasawa (1993), Schweitzer (2001), Schweitzer et al. (2010), Schweitzer et al. (2017) and Nyborg and Garassino (2020).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1892 | Cyclodorippidae Ortmann |
| 1993 | Cyclodorippidae Karasawa p. 42 |
| 2001 | Cyclodorippidae Schweitzer p. 522 |
| 2007 | Cyclodorippidae Ahyong et al. |
| 2010 | Cyclodorippidae Schweitzer et al. p. 78 |
| 2017 | Cyclodorippidae Schweitzer et al. p. 1 |
| 2020 | Cyclodorippidae Nyborg and Garassino p. 168 |
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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.
Fm. Cyclodorippidae Ortmann 1892
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Subfm. Cyclodorippinae Ortmann 1892
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G. Tymolus Stimpson 1858
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†Tymolus alaskensis Conkle et al. 2006
†Tymolus bottemilleri Nyborg and Garassino 2020
Tymolus brucei Tavares 1991
Tymolus hirtipes Tan and Huang 2000
†Tymolus ingens Takeda and Tomida 1984
†Tymolus italicus Beschin et al. 2016
†Tymolus itoigawai Takeda and Tomida 1984
Tymolus japonicus Stimpson 1858
†Tymolus kamadai Imaizumi 1952
Tymolus similis Grant 1905
Tymolus uncifer Ortmann 1892
Subfm. Xeinostominae Tavares 1992
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Turnsek 1997, Aberhan 1992 | |||||
Age range
Maximum range based only on fossils: base of the Early/Lower Albian to the top of the Early/Lower Pliocene or 112.03000 to 3.60000 Ma
Minimum age of oldest fossil (stem group age): 109.0 Ma
Minimum age of oldest fossil (stem group age): 109.0 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Albian | USA (Texas) | Hillius youngi (235833) | |
| Ypresian | Italy | Tymolus italicus (207470) | |
| Eocene | USA (Washington) | Xeinostoma antiqua (234707) | |
| Early/Lower Miocene | Japan (Nagano) | Tymolus ingens (202469) | |
| Early/Lower Miocene - Middle Miocene | USA (Oregon) | Tymolus bottemilleri (210296) | |
| Miocene | USA (Alaska) | Tymolus alaskensis (68718) | |
| Miocene | Japan (Okayama) | Tymolus itoigawai (127688) | |
| Miocene | USA (Oregon) | Tymolus collinsi (210297) | |
| Langhian | Japan | Tymolus ingens (127690) Tymolus kamadai (169963) | |
| Early/Lower Pliocene | Japan (Miyazaki) | Tymolus sp. (127696) |