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Chlamys hastata (spear scallop)
Taxonomy
Pecten hastatus was named by Sowerby (1842) [DISTRIBUTION: Cenozoic; North Pacific.]. It is extant.
It was recombined as Pecten (Chlamys) hastatus by Arnold (1903), Arnold (1906) and Yokoyama (1929); it was recombined as Pecten (Pecten) hastatus by Grant and IV and Gale (1931); it was recombined as Chlamys hastatus by Woodring and Bramlette (1950), Moore (1984); it was recombined as Chlamys (Chlamys) hastata by MacNeil (1967), Kafanov et al. (2001); it was recombined as Chlamys (Chlamys) hastatus by Sinelnikova (1975); it was recombined as Chlamys hastata by Hertlein and Grant (1972), Coan et al. (2000), Hendy (2021).
It was recombined as Pecten (Chlamys) hastatus by Arnold (1903), Arnold (1906) and Yokoyama (1929); it was recombined as Pecten (Pecten) hastatus by Grant and IV and Gale (1931); it was recombined as Chlamys hastatus by Woodring and Bramlette (1950), Moore (1984); it was recombined as Chlamys (Chlamys) hastata by MacNeil (1967), Kafanov et al. (2001); it was recombined as Chlamys (Chlamys) hastatus by Sinelnikova (1975); it was recombined as Chlamys hastata by Hertlein and Grant (1972), Coan et al. (2000), Hendy (2021).
Subspecies
Sister species lacking formal opinion data
C. ambigua, C. austriatus, C. balatonicus, C. bavarica, C. burlesonensis, C. cawcawensis, C. chathamensis, C. cocoana, C. compitum, C. coquimbensis, C. cossmanni, C. decorata, C. dewalquei, C. discor, C. discors, C. falgeri, C. ferniensis, C. glabra, C. gracilisquamosa, C. guerangeri, C. hinnitiformis, C. hopkinsi, C. interpunctata, C. jamensis, C. jamviensis, C. jinvalensis, C. laurae, C. liveoakensis, C. luciensis, C. matapwaensis, C. michellesmithi, C. multiformis, C. pertinax, C. proprius, C. riggsi, C. s., C. salamanca, C. scrabrellus, C. senatrius, C. septemplicatus, C. simpsoni, C. subaequicostata, C. subalternicostatus, C. subequicostatus, C. subliliemensis, C. subtextoria, C. subulatae, C. subvacaensis, C. tauroperstriata, C. textroia, C. townsendi, C. tullbergi, C. turomtchensis, C. vaughani, C. vaun, C. vaunwythei, C. venustula, C. vidali, C. viminea, C. vodopadnyensis, C. wahtubbeanus, C. arachnoideus, C. flabellum, C. judaica, C. perrugosa, C. nipponensis, C. spinulosa, C. concinnatus, C. nipponensis, C. crocus, C. proximus, C. subarticulatus, C. transdanubialis, C. burnetti, C. nicholsi, C. sakitoensis, C. broilii, C. fassaensis, C. paronai, C. schroeteri, Pecten bellhamellatus, Pecten nicholsi
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1842 | Pecten hastatus Sowerby p. 72 |
| 1850 | Pecten hericius Gould p. 345 |
| 1856 | Pecten altiplectus Conrad p. 313 |
| 1857 | Pecten altiplicatus Conrad p. 191 |
| 1887 | Pecten hericeus Carpenter |
| 1895 | Pecten hastatus Ashley p. 344 |
| 1903 | Pecten (Chlamys) hastatus Arnold p. 109 figs. Plate XI, Figs. 4 and 4a |
| 1903 | Pecten (Chlamys) hericeus Arnold p. 110 figs. Plate XI, Fig. 2 |
| 1906 | Pecten (Chlamys) hastatus Arnold p. 108 |
| 1906 | Pecten (Chlamys) hastatus hericius Arnold p. 110 |
| 1906 | Pecten (Chlamys) lawsoni Arnold p. 117 |
| 1920 | Pecten islandicus pugetensis Oldroyd p. 136 |
| 1929 | Pecten (Chlamys) hastatus Yokoyama p. 531 |
| 1931 | Pecten (Pecten) hastatus Grant, IV and Gale p. 166 |
| 1931 | Pecten (Pecten) hastatus pugetensis Grant, IV and Gale p. 168 |
| 1932 | Pecten (Pecten) hastatus hericius Soper and Grant, IV p. 1059 |
| 1938 | Pecten newcombi Oldroyd |
| 1944 | Pecten (Chlamys) hericeus Burch pp. 4 - 5 |
| 1950 | Chlamys hastatus Woodring and Bramlette |
| 1966 | Chlamys herica Addicott |
| 1966 | Chlamys pugetensis Addicott |
| 1967 | Chlamys (Chlamys) hastata MacNeil p. 14 figs. Plate 24, figures 7, 10 |
| 1967 | Chlamys (Chlamys) hastata hericius MacNeil p. 14 figs. Plate 21, figures 1, 3 |
| 1967 | Chlamys (Chlamys) pugetensis MacNeil p. 15 figs. Plate 22, figures 4, 5 |
| 1972 | Chlamys hastata Hertlein and Grant p. 190 |
| 1975 | Chlamys (Chlamys) hastatus Sinelnikova p. 55 |
| 1981 | Chlamys hericius Clark |
| 1984 | Chlamys hastata hericius Moore p. B23 figs. Plate 5, figures 7, 8 |
| 1984 | Chlamys hastata pugetensis Moore p. B20 figs. Plate 6, figures 1, 9 |
| 1984 | Chlamys hastatus Moore p. 22 |
| 2000 | Chlamys hastata Coan et al. p. 233 |
| 2001 | Chlamys (Chlamys) hastata Kafanov et al. |
| 2021 | Chlamys hastata 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.
Chlamys hastata Sowerby 1842 [spear scallop]
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†Chlamys (Chlamys) hastata ellisi Hertlein and Grant 1972
Pecten (Chlamys) hastatus hindsii Carpenter 1863
Pecten hastatus navarchus Dall 1898
Invalid names: Chlamys herica Gould 1850 [synonym], Chlamys pugetensis Oldroyd 1920 [synonym], Pecten (Chlamys) hericeus Carpenter 1887 [synonym], Pecten (Chlamys) lawsoni Arnold 1906 [synonym], Pecten altiplectus Conrad 1856 [synonym], Pecten altiplicatus Conrad 1857 [synonym], Pecten newcombi Oldroyd 1938 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| valve height | 1 | 49.5 |
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| Source: g = genus, f = family, o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range
Maximum range based only on fossils: base of the Tortonian to the top of the Holocene or 11.63000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 5.333 Ma
Minimum age of oldest fossil (stem group age): 5.333 Ma
Collections (73 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Miocene | USA (California) | Chlamys hastata (214400) | |
| Late/Upper Miocene - Early/Lower Pliocene | USA (California) | Chlamys hericius (37551) | |
| Tortonian - Piacenzian | USA (California) | Chlamys hastata (188305) | |
| Early/Lower Pliocene | USA (California) | Pecten hastatus (220177) | |
| Pliocene | Mexico (Baja California Sur) | Pecten lawsoni (43687) | |
| Pliocene | Russian Federation | Chlamys hastata (50080) | |
| Pliocene | USA (California) | Chlamys hastatus (237378 237380 237387) Pecten hastatus (186032 204364 220192) Pecten hastatus, Pecten hastatus (120820 138824) Pecten lawsoni (122278) | |
| Zanclean - Gelasian | USA (California) | Chlamys hastata (214264 214272 214274) | |
| Late/Upper Pliocene | USA (California) | Chlamys hastata (214967) Chlamys hastatus (237593) | |
| Late/Upper Pliocene | USA (Washington) | Chlamys hastata (187026) | |
| Piacenzian | USA (California) | Chlamys hastata (122752) Chlamys hastatus (189542 189549) Pecten hericeus (186031) | |
| Piacenzian - Gelasian | USA (California) | Chlamys hastata (214255) | |
| Late/Upper Pliocene - Early/Lower Pleistocene | USA (California) | Pecten hastatus (217009) | |
| Gelasian | USA (California) | Chlamys hastata (214285) Chlamys hastatus (189556 189557 189558 189561 189765 189767 189768 189769 207663 207694 207713) | |
| Early/Lower Pleistocene | USA (California) | Chlamys hastata (187025) Chlamys hastatus (168757 231899) | |
| Pleistocene | Eritrea | Pecten hastatus (101415) | |
| Pleistocene | USA (California) | Pecten hericeus (201624) | |
| Quaternary | USA (California) | Chlamys hastatus (37933 37940 37947 37948) | |
| Middle Pleistocene | USA (California) | Chlamys hastata (71053 71054 223325 223327) Chlamys hastatus (203105 203108 223525) Pecten hastatus (96894 138723 200409 223326) Pecten hastatus, Pecten hericeus (222663 222665) Pecten hericeus (203118) | |
| Middle Pleistocene - Late/Upper Pleistocene | USA (California) | Pecten hastatus (222646) | |
| Late/Upper Pleistocene | USA (California) | Chlamys hastata (240620 240626) Chlamys herica (37673) Chlamys pugetensis, Chlamys herica (37672) Pecten hastatus (222662 222674) Pecten hericeus (59063) Pecten hericius (160361) | |
| Late/Upper Pleistocene | Canada (British Columbia) | Chlamys hastata (75232) | |
| Holocene | USA (Alaska) | Chlamys pugetensis (187065) |