Basic info | Taxonomic history | Classification | Included Taxa |
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Taxonomy
Mactra warrenana was named by Meek and Hayden (1856).
It was recombined as Mactra (Trigonella) warrenana by Meek and Hayden (1860); it was recombined as Mactra (Cymbophora) warrenana by Meek (1876); it was recombined as Cymbophora warrenana by Speden (1970).
It was recombined as Mactra (Trigonella) warrenana by Meek and Hayden (1860); it was recombined as Mactra (Cymbophora) warrenana by Meek (1876); it was recombined as Cymbophora warrenana by Speden (1970).
Sister species lacking formal opinion data
C. appressa, C. araucana, C. asburnerii, C. berryi, C. cancellosa, C. canonensis, C. conradi, C. emmonsi, C. ezoensis, C. gracilis, C. hetonaiensis, C. holmesi, C. huerfanensis, C. inflata, C. lintea, C. puteana, C. saccellana, C. scabellum, C. schucherti, C. securis, C. simpsonensis, C. spooneri, C. subtilis, C. tellinoides, C. trigonalis, C. utahensis, C. wordeni
Synonyms
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Synonymy list
Year | Name and author |
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1856 | Mactra formosa Meek and Hayden p. 271 |
1856 | Mactra warrenana Meek and Hayden p. 271 |
1860 | Mactra (Trigonella) warrenana Meek and Hayden p. 425 |
1876 | Mactra (Cymbophora) warrenana Meek p. 208 figs. PL 30, figs. 7a-d |
1876 | Mactra (Cymbophora) formosa Meek and Hayden p. 207 figs. pl 39, fig. 7 |
1970 | Cymbophora warrenana Speden pp. 128 - 130 figs. Plate 32, figs. 4-19 |
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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.
†Cymbophora warrenana Meek and Hayden 1856
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Invalid names: Cymbophora formosa Meek and Hayden 1856 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: f = family, c = class | |||||
References: Aberhan et al. 2004, Sanchez Roig 1926 |
Age range: base of the Early/Lower Campanian to the top of the Early/Lower Maastrichtian or 83.60000 to 66.00000 Ma
Collections (21 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Early/Lower Campanian | Canada (Alberta) | Mactra formosa (82668 82670 82672 82675) Mactra warrenana (82650 82652 82653 82673 82676) | |
Late/Upper Campanian | USA (Wyoming) | Cymbophora formosa (87748) | |
Late/Upper Campanian | Canada (Alberta) | Mactra warrenana (82638 82687) | |
Middle Campanian | Canada (Alberta) | Mactra formosa (82684) | |
Early/Lower Maastrichtian | Canada (Alberta) | Mactra warrenana (82644 82645) | |
Early/Lower Maastrichtian | Canada (Saskatachewan) | Cymbophora warrenana (234104) | |
Late/Upper Maastrichtian | Canada (Alberta) | Mactra warrenana (82643) | |
Late/Upper Maastrichtian | USA (South Dakota) | Cymbophora warrenana (88510 88511) | |
Maastrichtian | USA (North Dakota) | Cymbophora warrenana (1339) | |
Maastrichtian | USA (South Dakota) | Cymbophora warrenana (1320) |