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Astartella subquadrata
Taxonomy
Astartella subquadrata was named by Girty (1909).
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Astartella subquadrata Girty |
| 1942 | Astartella subquadrata Clifton p. 693 |
| 1952 | Astartella subquadrata Chronic p. 150 figs. Pl 10, figs 5-15 |
| 1963 | Astartella subquadrata Ciriacks p. 65 figs. Pl 12, figs 6-9 |
| 1963 | Astartella subquadrata Winters p. 61 figs. Pl 9, figs 6a-7b |
| 1984 | Astartella subquadrata Muromtseva and Guskov p. 86 figs. Pl 38, figs 1,2 |
| 2012 | Astartella subquadrata Quiroz-Barroso et al. p. 173 fig. 5.7 |
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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.
†Astartella subquadrata Girty 1909
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 2.63 | 1.13 | 6.10 | 3.62 | 3.51 | |
| valve height | 62 | 4.40 | 1.06 | 11.0 | 4.55 | 1.35 |
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| Source: superf = superfamily | |||||
| Reference: Sanchez Roig 1926 | |||||
Age range: base of the Morrowan to the top of the Wuchiapingian or 323.20000 to 254.17000 Ma
Collections (21 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Morrowan - Desmoinesian | Brazil | Astartella subquadrata (67801) | |
| Virgilian | USA (New Mexico) | Astartella subquadrata (156695 156715) | |
| Asselian | Mexico | Astartella subquadrata (117974) | |
| Artinskian | USA (Nevada) | Astartella subquadrata (39157) | |
| Leonardian | USA (Utah) | Astartella subquadrata (11272) | |
| Kungurian | USA (New Mexico) | Astartella subquadrata (233342) | |
| Kungurian | USA (Utah) | Astartella subquadrata (88664) | |
| Kungurian | Russian Federation | Astartella subquadrata (110010) | |
| Kungurian | Mexico (Sonora) | Astartella subquadrata (52097 52098) | |
| Kungurian | USA (Texas) | Astartella subquadrata (90745) | |
| Kungurian | USA (Arizona) | Astartella subquadrata (52898 95353 120746 120747) | |
| Kungurian | USA (Idaho) | Astartella subquadrata (125785) | |
| Roadian | USA (Arizona) | Astartella subquadrata (39998 39999 40001) | |
| Wuchiapingian | USA (Utah) | Astartella subquadrata (11234) |