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Trochita
Taxonomy
Trochita was named by Schumacher (1817) [Sepkoski's age data: T Than R Sepkoski's reference number: 614]. It is extant.
It was reranked as Calyptraea (Trochita) by Nagao (1928), Grant and Gale (1931), Harris and Palmer (1947), Addicott (1970), Vokes (1975).
It was assigned to Calyptraea by Nagao (1928), Grant and Gale (1931), Harris and Palmer (1947), Addicott (1970), Vokes (1975); to Calyptraeidae by Woodring (1957), Todd (2001); and to Neotaenioglossa by Sepkoski (2002).
It was reranked as Calyptraea (Trochita) by Nagao (1928), Grant and Gale (1931), Harris and Palmer (1947), Addicott (1970), Vokes (1975).
It was assigned to Calyptraea by Nagao (1928), Grant and Gale (1931), Harris and Palmer (1947), Addicott (1970), Vokes (1975); to Calyptraeidae by Woodring (1957), Todd (2001); and to Neotaenioglossa by Sepkoski (2002).
Species
Calyptraea (Trochita) aperta (syn. T. perarmata), Calyptraea (Trochita) costaria, Calyptraea (Trochita) crenata, Calyptraea (Trochita) floridana, Calyptraea (Trochita) ornata, Calyptraea (Trochita) spirata, Calyptraea (Trochita) trochiformis, T. collinsii, T. diabloensis, T. occidentalis, T. pileolus, T. pileus, T. radians
Synonymy list
| Year | Name and author |
|---|---|
| 1817 | Trochita Schumacher |
| 1928 | Calyptraea (Trochita) Nagao p. 94 |
| 1931 | Calyptraea (Trochita) Grant and Gale p. 795 |
| 1947 | Calyptraea (Trochita) Harris and Palmer p. 260 |
| 1957 | Trochita Woodring pp. 79, 80 |
| 1970 | Calyptraea (Trochita) Addicott p. 61 |
| 1975 | Calyptraea (Trochita) Vokes |
| 2001 | Trochita Todd |
| 2002 | Trochita 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. Trochita Schumacher 1817
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†Calyptraea (Trochita) aperta Solander 1766
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Invalid names: Trochita perarmata Conrad 1841 [synonym]
†Calyptraea (Trochita) costaria Grateloup 1827
†Calyptraea (Trochita) crenata Gardner 1947
†Calyptraea (Trochita) floridana Olsson and Petit 1964
†Calyptraea (Trochita) ornata Basterot 1825
Calyptraea (Trochita) spirata Forbes 1852
Calyptraea (Trochita) trochiformis Gmelin 1791
†Trochita collinsii Gabb 1881
Trochita diabloensis Clark 1915
Trochita occidentalis Gray 1850
Trochita pileolus d'Orbigny 1841
Trochita pileus Lamarck 1822
Trochita radians Lamarck 1816
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range
Maximum range based only on fossils: base of the Middle Paleocene to the top of the Holocene or 61.70000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 61.6 Ma
Minimum age of oldest fossil (stem group age): 61.6 Ma
Collections (303 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Danian | USA (Texas) | Calyptraea aperta (205466) | |
| Middle Paleocene - Late/Upper Paleocene | USA (Alabama) | Calyptraea aperta (85330 85562) | |
| Selandian | USA (Alabama) | Calyptraea aperta (205472) | |
| Selandian - Thanetian | USA (Alabama) | Calyptraea aperta (80367) | |
| Thanetian | USA (Virginia) | Calyptraea aperta (91126) | |
| Thanetian | USA (Alabama) | Calyptraea aperta (80495 85322 86176 86179 90141 90142 90439 90818 92352) | |
| Thanetian | Trinidad and Tobago | Calyptraea aperta (80170) | |
| Thanetian | Bulgaria (Varna) | Calyptraea suessoniensis, Calyptraea aperta (102400) | |
| Late/Upper Paleocene | USA (Maryland) | Calyptraea aperta (91712 91890) | |
| Late/Upper Paleocene | USA (South Carolina) | Calyptraea aperta (92466) | |
| Late/Upper Paleocene | USA (Virginia) | Calyptraea trochiformis (84048) | |
| Ypresian | USA (Alabama) | Calyptraea aperta (80779 80792 89873 90038 90039 90143 90144 90145 92375 97454) | |
| Ypresian | Turkey (Yerkoy) | Calyptraea aperta (98010) | |
| Ypresian | Belgium | Calyptraea aperta (77608) | |
| Ypresian | Peru | Calyptraea aperta (205244) | |
| Ypresian - Lutetian | USA (Alabama) | Calyptraea aperta (83801 83804) | |
| Ypresian - Lutetian | United Kingdom (England) | T. aperta (42583) | |
| Ypresian - Bartonian | USA (Alabama) | Calyptraea aperta (100145) | |
| Eocene | Haiti | Calyptraea aperta (61190) | |
| Early/Lower Eocene - Miocene | USA (Texas) | Calyptraea aperta (99037) | |