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Nucularcidae
Taxonomy
Nucularcidae was named by Pojeta and Stott (2007).
It was assigned to Nuculoidea by Pojeta and Stott (2007) and Bouchet et al. (2010).
It was assigned to Nuculoidea by Pojeta and Stott (2007) and Bouchet et al. (2010).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 2007 | Nucularcidae Pojeta and Stott p. 1482–1483 |
| 2010 | Nucularcidae Bouchet et al. p. 115 |
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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.
Fm. †Nucularcidae Pojeta and Stott 2007
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G. †Nucularca Pojeta and Stott 2007
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†Nucularca cingulata Ulrich 1879
†Nucularca gorensis Foerste 1924
†Nucularca pectunculoides Hall 1872
G. †Sthenodonta Pojeta and Gilbert-Tomlinson 1977
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†Sthenodonta etheridgei Tate 1896
†Sthenodonta jelli Pojeta and Gilbert-Tomlinson 1977
†Sthenodonta passmoreae Pojeta and Gilbert-Tomlinson 1977
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J., Jr. Pojeta and C. A. Stott 2007 | Glycymeriform nuculoids having broad reduced umbones, beaks prominent and separate the teeth into anterior and posterior rows. Hinge plate arcuate, wide and broad, having uninterrupted anterior and posterior taxodont tooth rows that meet at an obtuse angle (>100˚); shape of teeth variable, ranging from peg-like below the beak to chevron-shaped. Teeth below beak not diminished in size. Ligament external. Ornament comarginal. Hinge axis pases through posterior row of teeth. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Sanchez Roig 1926, Hendy et al. 2009, Aberhan et al. 2004 | |||||
Age range: base of the Darriwilian to the top of the Richmondian or 467.30000 to 445.50000 Ma
Collections (48 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Darriwilian | Australia (Queensland) | Sthenodonta passmoreae (77521 77760 79125) | |
| Darriwilian | Australia (Northern Territory) | Sthenodonta eastii (77523 79127 79129 79131 79136 79158 79176 79177 79178 79183 79184 79185 79187 79188 79189 79190 79191 79192 79193 79196 79197 79198 79231 79232 79234 79244 79310) Sthenodonta jelli (79137) Sthenodonta passmoreae (79179 79312 79314 79315 79318) | |
| Late/Upper Ordovician | USA (Maryland) | Ctenodonta pulchella (411) | |
| Late/Upper Ordovician | USA (New York) | Ctenodonta pulchella (347) | |
| Chatfieldian | USA (Kentucky) | Ctenodonta pectunculoides (34561) | |
| Maysvillian | USA (Tennessee) | Ctenodonta pectunculoides (5374) | |
| Maysvillian | USA (Kentucky) | Nucularca cingulata (76968) | |
| Maysvillian | USA (New York) | Ctenodonta lorrainensis, Ctenodonta borealis (173297) | |
| Richmondian | Canada (Ontario) | Ctenodonta cingulata (173091) Nucularca gorensis (76903 76908) | |
| Richmondian | USA (Indiana) | Ctenodonta cingulata (173310) Nucularca cingulata (76913) | |
| Richmondian | USA (Ohio) | Ctenodonta cingulata (5326) |