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Girtyspira minuta
Taxonomy
Loxonema minuta was named by Stevens (1858). It is not a trace fossil.
It was recombined as Actaeonina minuta by Meek and Worthen (1873), Knight (1932), Sturgeon (1937); it was recombined as Bulimorpha minuta by Mark (1912); it was recombined as Girtyspira minuta by Knight (1936), Sturgeon (1964), Licharev (1975), Batten (1995), Kulas and Batten (1997), Kues and Batten (2001), Wagner (2023).
It was recombined as Actaeonina minuta by Meek and Worthen (1873), Knight (1932), Sturgeon (1937); it was recombined as Bulimorpha minuta by Mark (1912); it was recombined as Girtyspira minuta by Knight (1936), Sturgeon (1964), Licharev (1975), Batten (1995), Kulas and Batten (1997), Kues and Batten (2001), Wagner (2023).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1858 | Loxonema minuta Stevens pp. 222 - 223 figs. pl. 35 f. 7 |
| 1873 | Actaeonina minuta Meek and Worthen p. 594 figs. pl. 29 f. 2a-b |
| 1912 | Bulimorpha minuta Mark pp. 299, 317 figs. pl. 16 f. 15 |
| 1915 | Macrochilina danvillensis Girty p. 363 |
| 1930 | Bulimorpha turnerensis Sayre |
| 1930 | Bulimorpha meeki Sayre p. 146 figs. pl. 16 f. 6 |
| 1930 | Bulimorpha turnerensis Sayre p. 147 figs. pl. 16 f. 7 |
| 1930 | Macrochilina danvillensis Warthin p. 47 figs. pl. 7 f. 11 |
| 1932 | Actaeonina minuta Knight pp. 198 - 201 figs. pl. 28 f. 2a-b, 3a-p |
| 1936 | Girtyspira minuta Knight p. 524 |
| 1937 | Actaeonina minuta Sturgeon p. 357 |
| 1964 | Girtyspira minuta Sturgeon pp. 222 - 223 figs. pl. 35 f. 7 |
| 1975 | Girtyspira minuta Licharev p. 130 figs. pl. 21 f. 8-11 |
| 1995 | Girtyspira minuta Batten p. 35 fig. 50 |
| 1997 | Girtyspira minuta Kulas and Batten p. 54 |
| 2001 | Girtyspira minuta Kues and Batten p. 88 figs. f. 18.13-18.16 |
| 2023 | Girtyspira minuta Wagner p. 5125 |
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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.
†Girtyspira minuta Stevens 1858
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Invalid names: Bulimorpha meeki Sayre 1930 [synonym], Bulimorpha turnerensis Sayre 1930 [synonym], Macrochilina danvillensis Girty 1915 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Batten 1995 | Very small, fusiform to somewhat turreted shells. Protoconch orthostrophic. Whorl profile evenly inflated and periphery slightly below midwhorl. Whorls embrace just below periphery resulting in a somewhat high-spired shell. Sutures sharp and deep. Subsutural ramp may be present. Aperture is teardrop-shaped. Holostomous. Anomphalus. Parietal inductura thin and arcuate. No ornament, folds or sinuses present. |
Measurements
No measurements are available
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| Source: f = family | |||||
| References: Wagner 2023, Kiessling 2004 | |||||
Collections (16 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Morrowan | USA (Texas) | Girtyspira minuta (79966) | |
| Moscovian | USA (Missouri) | Actaeonina minuta (69773) | |
| Desmoinesian | USA (Texas) | Actaeonina minuta (11100) | |
| Desmoinesian | USA (Ohio) | Girtyspira minuta (64886 64888 64909 64932) | |
| Desmoinesian | USA (New Mexico) | Girtyspira minuta (46536) | |
| Missourian | USA (Missouri) | Bulimorpha minuta (157612) | |
| Missourian | USA (Maryland) | Girtyspira minuta (118828) | |
| Missourian | USA (Ohio) | Bulimorpha minuta (69721) | |
| Virgilian | USA (New Mexico) | Girtyspira minuta (146828 156695 156709 156715) | |
| Virgilian | USA (Maryland) | Girtyspira minuta (118827) |