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Meekospira peracuta
Taxonomy
Eulima peracuta was named by Meek and Worthen (1860) [?Eulima peracuta Meek & Worthen 1860]. It is not a trace fossil.
It was recombined as Polyphemopsis peracuta by Meek and Worthen (1866); it was recombined as Meekospira peracuta by Ulrich and Scofield (1897), Knight (1932), Sturgeon (1937), Hoare (1961), Sturgeon (1964), Batten (1966), Yochelson and Saunders (1967), Kues (1984), Batten (1995), Kues and Batten (2001) and Wagner (2023).
It was recombined as Polyphemopsis peracuta by Meek and Worthen (1866); it was recombined as Meekospira peracuta by Ulrich and Scofield (1897), Knight (1932), Sturgeon (1937), Hoare (1961), Sturgeon (1964), Batten (1966), Yochelson and Saunders (1967), Kues (1984), Batten (1995), Kues and Batten (2001) and Wagner (2023).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1860 | Eulima peracuta Meek and Worthen p. 466 |
| 1866 | Polyphemopsis peracuta Meek and Worthen p. 375 figs. pl. 31 f. 7a-b |
| 1897 | Meekospira peracuta Ulrich and Scofield p. 1079 |
| 1932 | Meekospira peracuta Knight pp. 195 - 197 figs. pl. 27 f. 2a-l |
| 1937 | Meekospira peracuta Sturgeon p. 357 |
| 1961 | Meekospira peracuta Hoare pp. 187 - 188 figs. pl. 23 f. 1-2 |
| 1964 | Meekospira peracuta Sturgeon p. 222 figs. pl. 35 f. 1-2; pl. 36 f. 2 |
| 1966 | Meekospira peracuta Batten p. 93 figs. pl. 10 f. 7 |
| 1967 | Meekospira peracuta Yochelson and Saunders p. 126 |
| 1984 | Meekospira peracuta Kues figs. f. 3.48 |
| 1995 | Meekospira peracuta Batten p. 33 fig. 45 |
| 2001 | Meekospira peracuta Kues and Batten pp. 87 - 88 figs. f. 17.10-17.12 |
| 2023 | Meekospira peracuta Wagner p. 5098 |
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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.
†Meekospira peracuta Meek and Worthen 1860
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Batten 1995 | Subconical, subfusiform shells. Whorl profile flat to gently convex giving overall shell slightly convex, conical shape. Sutures are sharply defined, but shallow. Periphery is very low on whorl and at lower whorl margin. Whorls embrace at or just below periphery. Base is flatly rounded. Anomphalus. Columellar lip is arcuate and reflexed such that it is thickened into a narrow, convex callus. No ornament other than very fine growth lines. |
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Brigantian to the top of the Missourian or 336.00000 to 303.70000 Ma
Collections (49 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Brigantian | United Kingdom (England) | Meekospira peracuta (57131) | |
| Arnsbergian | China (Ningxia) | Meekospira peracuta (671) | |
| Morrowan | USA (Texas) | Meekospira peracuta (79966) | |
| Morrowan | USA (Kentucky) | Polyphemopsis peracuta (158165) | |
| Moscovian | USA (Missouri) | Meekospira peracuta (69773) | |
| Kashirian - Myachkovian | USA (New Mexico) | Meekospira peracuta (46548) | |
| Desmoinesian | USA (Ohio) | Meekospira peracuta (64883 64887 64889 64892 64895 64898 64899 64900 64904 64906 64912 64914 64917 64919 64921 64927 64929 64942 64948) | |
| Desmoinesian | USA (New Mexico) | Meekospira peracuta (46536) | |
| Desmoinesian | USA (Oklahoma) | Meekospira peracuta (8632 8633 8634 8635 8636 8637 8638 8639 8640 8641 8642 8643 8644 8645 8646 8647 8648 8649) | |
| Desmoinesian | USA (Missouri) | Meekospira peracuta (69770 70272 70482) | |
| Missourian | USA (Texas) | Meekospira peracuta (159900 159901) |