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Nucularca
Taxonomy
Nucularca was named by Pojeta and Stott (2007) [= Genus 2 of Pojeta 1978. Phil. Trans. Biol. 284].
It was assigned to Nucularcidae by Pojeta and Stott (2007), Bouchet et al. (2010).
It was assigned to Nucularcidae by Pojeta and Stott (2007), Bouchet et al. (2010).
Synonymy list
| Year | Name and author |
|---|---|
| 2007 | Nucularca Pojeta and Stott p. 1483–1484 |
| 2010 | Nucularca Bouchet et al. |
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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.
G. †Nucularca Pojeta and Stott 2007
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†Nucularca cingulata Ulrich 1879
†Nucularca gorensis Foerste 1924
†Nucularca pectunculoides Hall 1872
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J., Jr. Pojeta and C. A. Stott 2007 | Equidimensional Nucularcidae having subcircular shell shape; ornament of growth lines or comarginal lirae; beak set well back from expanded anterior margin; peg-like teeth below beak (convexodont). Posterior tooth row commonly longer, broader at its point of maximum thickness and having a larger number of teeth. Area above posterior tooth row high, forming an auricle-like extension above the ligament area. |
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Hendy 2009, Hendy et al. 2009, Aberhan et al. 2004, Sanchez Roig 1926 | |||||
Age range: base of the Chatfieldian to the top of the Richmondian or 453.80000 to 445.50000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Ordovician | USA (New York) | Ctenodonta pulchella (347) | |
| Late/Upper Ordovician | USA (Maryland) | Ctenodonta pulchella (411) | |
| Chatfieldian | USA (Kentucky) | Ctenodonta pectunculoides (34561) | |
| Maysvillian | USA (Kentucky) | N. cingulata (76968) | |
| Maysvillian | USA (New York) | Ctenodonta lorrainensis, Ctenodonta borealis (173297) | |
| Maysvillian | USA (Tennessee) | Ctenodonta pectunculoides (5374) | |
| Richmondian | USA (Ohio) | Ctenodonta cingulata (5326) | |
| Richmondian | Canada (Ontario) | Ctenodonta cingulata (173091) N. gorensis (76903 76908) | |
| Richmondian | USA (Indiana) | Ctenodonta cingulata (173310) N. cingulata (76913) |