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Lithopoma
Taxonomy
Lithopoma was named by Gray (1850) [Sepkoski's age data: T Mi R]. It is extant. Its type is Trochus tuber.
It was reranked as Astraea (Lithopoma) by Gardner (1947), Weisbord (1962) and Todd (2001).
It was assigned to Astraea by Gardner (1947), Weisbord (1962) and Todd (2001); to Archaeogastropoda by Sepkoski (2002); to Turbinidae by Landau and Marques da Silva (2010); and to Turbininae by Landau et al. (2016).
It was reranked as Astraea (Lithopoma) by Gardner (1947), Weisbord (1962) and Todd (2001).
It was assigned to Astraea by Gardner (1947), Weisbord (1962) and Todd (2001); to Archaeogastropoda by Sepkoski (2002); to Turbinidae by Landau and Marques da Silva (2010); and to Turbininae by Landau et al. (2016).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1850 | Lithopoma Gray |
| 1850 | Pachypoma Gray |
| 1891 | Pachypoma Kittl p. 243 |
| 1925 | Astraea (Pachypoma) Oldroyd p. 20 |
| 1927 | Astraea (Pachypoma) Stewart p. 318 |
| 1947 | Astraea (Lithopoma) Gardner p. 611 |
| 1962 | Astraea (Lithopoma) Weisbord p. 97 |
| 2001 | Astraea (Lithopoma) Todd |
| 2002 | Lithopoma Sepkoski |
| 2010 | Lithopoma Landau and Marques da Silva p. 15 |
| 2016 | Lithopoma Landau et al. p. 13 |
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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. Lithopoma Gray 1850
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Lithopoma americanum Gmelin 1791
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Invalid names: Astraea (Lithopoma) southbayensis Petuch 1994 [synonym]
Lithopoma brevispinum Lamarck 1822
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Invalid names: Astraea (Lithopoma) differentia Weisbord 1962 [synonym]
Lithopoma caelatum Gmelin 1791
†Lithopoma minutum Landau et al. 2016
Lithopoma tectum Lightfoot 1786
Lithopoma tuber Linnaeus 1758
Invalid names: Pachypoma Gray 1850 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 10 | 13.4 | 7.90 | 22.5 | 14.8 | 5.50 |
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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 Julian to the top of the Late/Upper Pleistocene or 235.00000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 232.0 Ma
Minimum age of oldest fossil (stem group age): 232.0 Ma
Collections (37 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Julian | Italy | Pachypoma calcar, Pachypoma haueri (144631) Pachypoma calcar, Pachypoma haueri, Pachypoma insolitum (144632) Pachypoma insolitum (144709) Pleurotomaria calcar (137429) | |
| Chattian | Denmark | Astraea pustulosa (234515) | |
| Burdigalian | Venezuela (Falcon) | L. portoricoensis (43063) | |
| Tortonian | Venezuela | L. brevispinum (96470) | |
| Messinian - Zanclean | Dominican Republic | Astraea sp. (74967) | |
| Early/Lower Pliocene | Venezuela (Sucre) | Astraea diffidentia (41541) Astraea tuber (41550) | |
| Pliocene | Costa Rica | Astralium brevispinum (134673) Astralium caelatum (134667) | |
| Pliocene | Haiti | Astraea caelata (60898) | |
| Late/Upper Pliocene | Jamaica | Astraea sp. (58522 69094) | |
| Late/Upper Pliocene | Costa Rica | L. brevispinum (96519) | |
| Late/Upper Pliocene | Venezuela | Astraea tuber (131210) L. brevispinum (111011) | |
| Late/Upper Pliocene | Colombia (La Guajira) | L. sp. (136994 156719) | |
| Late/Upper Pliocene | USA (Florida) | Astraea tectariaeformis (79958) | |
| Late/Upper Pliocene - Early/Lower Pleistocene | USA (Florida) | Astraea precursor (79804) | |
| Early/Lower Pleistocene | USA (Florida) | Astraea precursor (79336) Astraea scolopax (79331) | |
| Early/Lower Pleistocene | Venezuela (Sucre) | Astraea tuber (41556) | |
| Pleistocene | Dominican Republic | Astralium americanum (75422) | |
| Pleistocene | Haiti | Astraea americana (60887) Astraea caelata (60891) | |
| Calabrian | Costa Rica (Limon) | Astraea sp. (79835) | |
| Middle Pleistocene (interglacial) | Bahamas | Astraea caelata (80676) | |
| Middle Pleistocene | USA (Florida) | Astraea americana (67069) Astraea lindae (79747) Astraea southbayensis (79740) | |
| Late/Upper Pleistocene (interglacial) | Bahamas | Astraea caelata (80677) | |
| Late/Upper Pleistocene | Cayman Islands | L. tectum (80835 80837) | |
| Late/Upper Pleistocene (interglacial) | Jamaica | Astraea caelata (80407) |