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Homalopoma (Homalopoma)
Taxonomy
Homalopoma (Homalopoma) was named by Carpenter (1864). It is extant.
It was assigned to Homalopoma by Carpenter (1864) and Hendy (2020).
It was assigned to Homalopoma by Carpenter (1864) and Hendy (2020).
Subtaxa
Homalopoma (Homalopoma) baculum, Homalopoma (Homalopoma) berryi, Homalopoma (Homalopoma) luridum (syn. Leptothyra carpenteri), Homalopoma (Homalopoma) mimicum, Homalopoma (Homalopoma) paucicostatum, Homalopoma (Homalopoma) radiatum (syn. Liotia acuticostata supranodosa, Homalopoma fenestratum), Homalopoma (Homalopoma) subobsoletum
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1864 | Homalopoma (Homalopoma) Carpenter |
| 2020 | Homalopoma (Homalopoma) Hendy |
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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.
Subg. Homalopoma (Homalopoma) Carpenter 1864
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Homalopoma (Homalopoma) baculum Carpenter 1864
Homalopoma (Homalopoma) berryi McLean 1964
Homalopoma (Homalopoma) luridum Dall 1885
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Invalid names: Leptothyra carpenteri Pilsbry 1889 [synonym]
Homalopoma (Homalopoma) mimicum LaFollette 1976
Homalopoma (Homalopoma) paucicostatum Dall 1871
Homalopoma (Homalopoma) radiatum Dall 1918
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Invalid names: Homalopoma fenestratum Dall 1919 [synonym], Liotia acuticostata supranodosa Strong 1934 [synonym]
†Homalopoma (Homalopoma) subobsoletum Willett 1937
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range
Maximum range based only on fossils: base of the Late/Upper Eocene to the top of the Late/Upper Pleistocene or 37.20000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Collections (62 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Eocene | Australia (Western Australia) | Homalopoma limnaios (48441) | |
| Piacenzian | USA (California) | Leptothyra paucicostata, Leptothyra carpenteri (186031) | |
| Gelasian | USA (California) | Homalopoma carpenteri (189765) Homalopoma luridum (214287) Homalopoma paucicostata (189768) | |
| Early/Lower Pleistocene | USA (California) | Homalopoma carpenteri, Homalopoma bacula, Homalopoma radiatum (223033) Homalopoma luridum, Homalopoma fenestratum (202495 202496) | |
| Early/Lower Pleistocene - Late/Upper Pleistocene | USA (California) | Homalopoma carpenteri, Homalopoma bacula, Homalopoma radiatum (223075) | |
| Pleistocene | Mexico (Baja California) | Homalopoma carpenteri (96590 96592) | |
| Pleistocene | USA (California) | Leptothyra paucicostata, Leptothyra carpenteri (201624) | |
| Quaternary | USA (California) | Homalopoma baculum (37935) Homalopoma carpenteri (37933 37936 37937 37940 37941 37943 37944 37945 37948) Homalopoma carpenteri, Homalopoma baculum (37939 37947) | |
| Middle Pleistocene | USA (California) | Homalopoma bacula (202633) Homalopoma carpenteri (202635 202644 202647 202968) Homalopoma carpenteri, Homalopoma bacula (203108) Homalopoma carpenteri, Homalopoma bacula, Homalopoma fenestratum (203113 203114) Homalopoma carpenteri, Homalopoma subobsoletum, Homalopoma bacula (223329) Homalopoma luridum (202492 202494) Homalopoma subobsoletum (223325) Homalopoma subobsoletum, Homalopoma bacula (223525) Homalopoma subobsoletum, Homalopoma baculum (203095) Leptothyra carpenteri (222664) Leptothyra paucicostata, Leptothyra bacula (207886) Leptothyra paucicostata, Leptothyra carpenteri, Leptothyra bacula (138723 222663) Leptothyra subobsoleta (200409) | |
| Middle Pleistocene - Late/Upper Pleistocene | USA (California) | Leptothyra bacula (222646) | |
| Late/Upper Pleistocene | USA (California) | Homalopoma carpenteri (96566 160361) Homalopoma luridum (202491) Homalopoma luridum, Homalopoma baculum (202490) Leptonyx sanguineus (222674) Leptothyra bacula (222661) Leptothyra carpenteri (59063 202936 222660 222662) | |
| Late/Upper Pleistocene | Mexico (Baja California) | Homalopoma carpenteri (96591) | |
| Late/Upper Pleistocene (interglacial) | Mexico (Baja California) | Homalopoma luridum (89573 194405) | |
| Late/Upper Pleistocene | Mexico | Homalopoma bacula (52347 226466) Homalopoma carpenteri (67642 226464 226467) |