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Trapezium
Taxonomy
Trapezium was named by Mühlfeld (1811) [Sepkoski's age data: K Ceno R Sepkoski's reference number: 790]. It is extant.
It was assigned to Trapeziidae by Vokes (1980), Gazdzicki and Pugaczewska (1984) and Lamprell and Whitehead (1992); to Veneroida by Sepkoski (2002); and to Trapezidae by Matsubara et al. (2010) and Bouchet et al. (2010).
It was assigned to Trapeziidae by Vokes (1980), Gazdzicki and Pugaczewska (1984) and Lamprell and Whitehead (1992); to Veneroida by Sepkoski (2002); and to Trapezidae by Matsubara et al. (2010) and Bouchet et al. (2010).
Synonymy list
| Year | Name and author |
|---|---|
| 1811 | Trapezium Mühlfeld |
| 1980 | Trapezium Vokes p. 160 |
| 1984 | Trapezium Gazdzicki and Pugaczewska p. 103 |
| 1992 | Trapezium Lamprell and Whitehead p. 120 |
| 2002 | Trapezium Sepkoski |
| 2010 | Trapezium Bouchet et al. |
| 2010 | Trapezium Matsubara et al. p. 133 |
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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. Trapezium Mühlfeld 1811
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Subg. Trapezium (Neotrapezium) Habe 1951
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†Neotrapezium californicum Squires 1999
†Trapezium (Neotrapezium) kobe Matsubara et al. 2010
Subg. †Trapezium (Schedotrapezium) Stewart 1930
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†Trapezium (Schedotrapezium) carinatum Gabb 1864
†Trapezium auberti Abrard 1942
†Trapezium claibornense Dall 1903
†Trapezium daviesi Cox 1930
†Trapezium diversicostulatum Imlay 1940
†Trapezium insepultum White 1887
†Trapezium lycetti Cossmann 1907
†Trapezium sublaevigatum Lamarck 1819
†Trapezium subtriangulum Imlay 1940
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range
Maximum range based only on fossils: base of the Olenekian to the top of the Late/Upper Pleistocene or 251.20000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 242.0 Ma
Minimum age of oldest fossil (stem group age): 242.0 Ma
Collections (50 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Olenekian - Anisian | Jordan (Janoobiah) | T. sp. (201987) | |
| Early/Lower Hettangian | France | T. sp. (39215) | |
| Planorbis | France | T. sp. (39379) | |
| Berriasian | Mexico (Durango) | T. diversicostatum, T. subtriangulum (2154) | |
| Aptian | New Zealand | T. sp. (83426) | |
| Middle Albian | Brazil (Sergipe) | T. insepultum (87861) | |
| Late/Upper Maastrichtian | Poland | T. trapezoidale (27818 27819 27822 28078 28083) | |
| Selandian - Thanetian | Pakistan (North-West Frontier) | T. daviesi (52132) | |
| Ypresian | India (Rajasthan) | T. sp. (46999) | |
| Lutetian | USA (California) | Neotrapezium californicum (210283 210285 210286 210287 210290) | |
| Lutetian - Bartonian | Japan (Hyogo) | T. kobe (102034 102036 102038 102039 102040 102041) | |
| Bartonian | USA (Alabama) | T. claibornense (90600) | |
| Priabonian | Bulgaria (Burgas) | T. alpinum (102230) | |
| Early/Lower Miocene | Japan | T. isoharense (70323 70324 70326) T. isoharensis (70320 70322) T. sp. (70336) | |
| Early/Lower Miocene | Japan (Nagano) | T. modilaeformis (159664) | |
| Langhian | Japan (Hokkaido) | T. modiolaeforme (77918) | |
| Pliocene | Antarctica | T. sp. (41576) | |
| Early/Lower Pleistocene | Japan | T. sp., T. sublaevigatum (62301) | |
| Pleistocene | Saudi Arabia | T. oblongum (198537 198576) | |
| Pleistocene | Japan | T. liratum (96946 97028) | |
| Middle Pleistocene - Late/Upper Pleistocene | USA (Hawaii) | T. californicus (89294) | |
| Late/Upper Pleistocene | Seychelles | T. sp. (81006 81007) | |
| Late/Upper Pleistocene | Djibouti | T. auberti (96787) | |
| Late/Upper Pleistocene | Tonga | T. oblongum (96436 96472) | |
| Late/Upper Pleistocene (interglacial) | USA (Hawaii) | T. californicus (89289 89400) | |
| Late/Upper Pleistocene (interglacial) | Kenya | T. sp. (81092) | |
| Late/Upper Pleistocene | Saudi Arabia | T. sublaevigatum (201414) |