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Glycymerita major
Taxonomy
Pectunculus veatchi major was named by Stanton (1896).
It was recombined as Glycymeris veatchii major by Arnold (1907) and Arnold (1907); it was recombined as Glycimeris veatchii major by Dickerson (1914); it was recombined as Glycimeris veatchi major by Waring (1917); it was recombined as Glycymeris major by Clark and Woodford (1927) and Clark (1929); it was recombined as Glycymeris (Glycymerita) major by Moore (1983) and Coan et al. (2000); it was recombined as Glycymerita major by Squires (2010) and Hendy (2020).
It was recombined as Glycymeris veatchii major by Arnold (1907) and Arnold (1907); it was recombined as Glycimeris veatchii major by Dickerson (1914); it was recombined as Glycimeris veatchi major by Waring (1917); it was recombined as Glycymeris major by Clark and Woodford (1927) and Clark (1929); it was recombined as Glycymeris (Glycymerita) major by Moore (1983) and Coan et al. (2000); it was recombined as Glycymerita major by Squires (2010) and Hendy (2020).
Subspecies
Sister species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1896 | Pectunculus veatchi major Stanton p. 1041 figs. 64: 2,3 |
| 1907 | Glycymeris veatchii major Arnold figs. pl. 26, fig. 4 |
| 1914 | Glycimeris veatchii major Dickerson p. 151 |
| 1917 | Glycimeris maccrayi Waring p. 93 figs. Pl. 15, Fig. 1-3, 8-9; Text-fig. 1C |
| 1917 | Glycimeris veatchi major Waring p. 93 |
| 1927 | Glycymeris major Clark and Woodford p. 86 |
| 1929 | Glycymeris major Clark figs. pl. 1, fig. 4 |
| 1944 | Glycymeris maccrayi Keen and Bentson p. 51 |
| 1983 | Glycymeris (Glycymerita) major Moore p. A54 figs. Plate 11,figures 9, 10 |
| 1983 | Glycymeris (Tucetona) maccrayi Moore p. A57 figs. Plate 12, figure 12 |
| 2000 | Glycymeris (Glycymerita) major Coan et al. p. 143 |
| 2010 | Glycymerita major Squires p. 909 figs. Figure 11, Table 1 |
| 2020 | Glycymerita major 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.
†Glycymerita major Stanton 1896
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†Glycymeris (Glycymerita) major meganosensis Clark and Woodford 1927
Invalid names: Glycymeris maccrayi Waring 1917 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Squires 2010 | Shell size medium. Quadrate (most specimens) but can be subquadrate. Anterodorsal and posterodorsal slopes truncate. Valves moderately inflated. Angulation posterior of umbones weak. Ribs narrow with narrow interspaces. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Mikkelsen and Bieler 2008, Aberhan et al. 2004 | |||||
Age range: base of the Selandian to the top of the Late/Upper Eocene or 61.60000 to 33.90000 Ma
Collections (32 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Paleocene | Mexico (Baja California Sur) | Glycymeris veatchii (43755) | |
| Paleocene | USA (California) | Glycimeris veatchii (190778 190780 190781 190785 190786 190795 190798) Glycymerita major (11117) | |
| Selandian | USA (California) | Glycimeris veatchii (184016) | |
| Thanetian | USA (California) | Glycymeris veatchii (52595 52596 52598 52602 52606 52610 52612 52617 52618) Glycymerita major (189952) | |
| Ypresian | USA (California) | Glycymeris major (52420 52421 52422 52423 52424 52426 52428 52429 52431) | |
| Ypresian - Lutetian | USA (Oregon) | Glycymeris major (37988) | |
| Priabonian | USA (Oregon) | Panope major (37989) | |
| Late/Upper Eocene | USA (California) | Glycimeris maccrayi (193039) |