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Chrysostoma
Taxonomy
Chrysostoma was named by Swainson (1840) [Sepkoski's age data: K R]. It is extant.
It was assigned to Monodontinae by MacNeil (1960); to Trochinae by Wilson (1993); and to Archaeogastropoda by Sepkoski (2002).
It was assigned to Monodontinae by MacNeil (1960); to Trochinae by Wilson (1993); and to Archaeogastropoda by Sepkoski (2002).
Species
Synonymy list
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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. Chrysostoma Swainson 1840
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†Chrysostoma paradoxum Born 1778
†Chrysostoma seguenzai Gemmellaro 1911
†Chrysostoma tornatum Gemmellaro 1889
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 11.5 | 8.00 | 14.0 | 12.5 | 2.63 |
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| Source: f = family, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: base of the Wordian to the top of the Late/Upper Pleistocene or 266.90000 to 0.01170 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wordian | Italy | C. tornatum (108566 108672 108675 233340) | |
| Early/Lower Pliensbachian | Italy (Messina) | C. seguenzai (173593) | |
| Late/Upper Kimmeridgian | Tanzania | C. staffi (36294) | |
| Early/Lower Pliocene | Japan (Okinawa) | C. paradoxum (42315) | |
| Late/Upper Pleistocene | Australia (Western Australia) | C. zeus (63355) |