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Amaea
Taxonomy
Amaea was named by Adams and Adams (1853) [Sepkoski's age data: K u R Sepkoski's reference number: 1248]. It is extant.
It was assigned to Scalidae by Abbass (1967); to Neotaenioglossa by Sepkoski (2002); and to Epitoniidae by Allison (1955), MacNeil (1960), DuShane (1979), Dushane (1988), Todd (2001), Wienrich (2001), Squires and Saul (2003), Rosenberg et al. (2006) and Moneer et al. (2024).
It was assigned to Scalidae by Abbass (1967); to Neotaenioglossa by Sepkoski (2002); and to Epitoniidae by Allison (1955), MacNeil (1960), DuShane (1979), Dushane (1988), Todd (2001), Wienrich (2001), Squires and Saul (2003), Rosenberg et al. (2006) and Moneer et al. (2024).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1853 | Amaea Adams and Adams |
| 1955 | Amaea Allison p. 422 |
| 1960 | Amaea MacNeil p. 44 |
| 1967 | Amaea Abbass p. 41 |
| 1979 | Amaea DuShane p. 97 |
| 1988 | Amaea Dushane p. 52 |
| 2001 | Amaea Todd |
| 2001 | Amaea Wienrich p. 450 |
| 2002 | Amaea Sepkoski |
| 2003 | Amaea Squires and Saul p. 28 |
| 2006 | Amaea Rosenberg et al. |
| 2024 | Amaea Moneer et al. |
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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. Amaea Adams and Adams 1853
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Subg. Amaea (Acrilloscala) Sacco 1890
Subg. †Amaea (Undiscala) de Boury 1909
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†Acrilla (Undiscala) lolakensis Durham 1937
†Acrilla (Undiscala) olympicensis Durham 1937
†Acrilla (Undiscala) soriensis Eames 1952
†Acrilla (Undiscala) washingtonensis Weaver 1916
†Amaea cancellata Brocchi 1814
†Amaea cerva Squires and Saul 2003
†Amaea pentzia Squires and Saul 2003
†Amaea trifolia Squires and Saul 2003
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Squires and L. R. Saul 2003 | Shell acuminate, whorls joined, and not um- biUcate. Protoconch smooth, conical, and polygrate. Su- ture impressed. Sculpture consisting of both axial and spi- ral ribs, usually cancellate (occasionally a few irregular varices). Basal keel prominent or weak (only a line and visible, or not, next to suture). Basal-disk sculpture sim- ilar to or unlike that on rest of teleoconch, axial ribs oc- casionally passing onto basal disk. Aperture ovate to quadrate (Clench & Turner, 1950; DuShane, 1974, 1979; Kilburn, 1985; Garvie, 1996; Neville. 2001). |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Beu et al. 1990, Kiessling 2004 | |||||
Age range
Maximum range based only on fossils: base of the Late/Upper Santonian to the top of the Gelasian or 85.80000 to 1.80600 Ma
Minimum age of oldest fossil (stem group age): 83.6 Ma
Minimum age of oldest fossil (stem group age): 83.6 Ma
Collections (59 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Santonian | USA (California) | A. cerva (69307 86781) A. trifolia (215307) | |
| Late/Upper Santonian | USA (California) | A. trifolia (215319) | |
| Early/Lower Campanian | USA (California) | A. pentzia (3890) | |
| Late/Upper Campanian | Israel | Undiscala goryi (80990 80998) Undiscala sp. (80982) Undiscala vicina (80980 80986 80987 80988 80989 80993 80995 80996 80997) | |
| Late/Upper Maastrichtian | Egypt (Western Desert) | A. hassani (3148) | |
| Danian | USA (Texas) | A. sp. (205466) | |
| Paleocene | USA (California) | Acrilla sp. (90071) Cerithiopsis alternata (190798) | |
| Ypresian | USA (Texas) | A. macula (7788 84325 84337) A. texana, A. macula (7789 83950) | |
| Ypresian | Antarctica (Seymour Island) | A. suroclathrata (63550) | |
| Ypresian | United Kingdom (England) | A. sp. (8025) | |
| Ypresian | Saudi Arabia (Ash Sharqiyah) | A. brevicula (42459) | |
| Waipawan | New Zealand | A. n. sp. A, A. n. sp. B (51084) | |
| Lutetian | USA (Texas) | Acrilloscala sp. (90883 205517) A. sp. (205223) A. texana (205520) | |
| Lutetian | France | A. sculptata (171526) | |
| Bartonian | France | A. delongchampsi (78567) | |
| Bartonian | Egypt | A. ghorabensis (2958) | |
| Bartonian | USA (Washington) | Epitonium washingtonensis (200105) | |
| Bartonian | France (Picardie) | A. newtoni (178082) | |
| Bartonian | Spain | A. sp. (142111) | |
| Bartonian | Pakistan | Acrilla soriensis (183853) | |
| Rupelian | USA (Washington) | Acrilla olympicensis (62246) | |
| Late/Upper Oligocene | USA (Washington) | Acrilla olympicensis (40737) | |
| Chattian | USA (Washington) | Acrilla olympicensis (52357 52362 180405 208172) Acrilla washingtonensis (52380) | |
| Burdigalian | Italy | Discoscala scaberrima (178108) | |
| Middle Miocene | Australia (Victoria) | A. triplicata (179602) | |
| Late/Upper Miocene | Japan | A. niasensis (42170) | |
| Late/Upper Miocene | Australia (South Australia) | A. triplicata (63439) | |
| Zanclean | United Kingdom (England) | Scalaria cancellata (84755) | |
| Zanclean | Italy (Asti) | A. geniculata (86305) | |
| Late/Upper Pliocene | Japan (Fukushima) | A. thielei (62295) | |
| Piacenzian | Italy (Emilia-Romagna) | Acrilloscala geniculata (178117) | |
| Gelasian | Italy | A. cancellata (178457 178779) | |
| Pleistocene | Japan | A. magnifica (97028) |