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Penetrigonias dakotensis
Taxonomy
Caenopus dakotensis was named by Peterson (1920). Its type specimen is Amer. Mus. Nat. Hist. No. 1110, a mandible, and it is not a trace fossil. It is the type species of Penetrigonias.
It was recombined as Penetrigonias dakotensis by Prothero (1998) and Prothero (2005).
It was recombined as Penetrigonias dakotensis by Prothero (1998) and Prothero (2005).
Synonyms
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Synonymy list
Year | Name and author |
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1920 | Caenopus dakotensis Peterson |
1929 | Caenopus dakotensis Wood p. 67 |
1976 | Penetrigonias hudsoni Tanner and Martin |
1998 | Penetrigonias dakotensis Prothero |
2005 | Penetrigonias dakotensis Prothero p. 32 |
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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.
†Penetrigonias dakotensis Peterson 1920
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Invalid names: Penetrigonias hudsoni Tanner and Martin 1976 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
References: Nowak 1991, Lillegraven 1979, Carroll 1988, Hendy et al. 2009, Ji et al. 2002 |
Age range: base of the Chadronian to the top of the Whitneyan or 37.20000 to 30.80000 Ma
Collections (9 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Duchesnean | USA (Texas) | Trigonias sp. (16835) | |
Duchesnean | USA (Utah) | Penetrigonias dakotensis (16847) | |
Chadronian | USA (Colorado) | Penetrigonias dakotensis (16977) | |
Chadronian | USA (Nebraska) | Penetrigonias hudsoni (17036) | |
Chadronian | USA (Wyoming) | Caenopus dakotensis (16960 16961 16962) | |
Chadronian | USA (Montana) | Penetrigonias dakotensis (16990) | |
Whitneyan | USA (South Dakota) | Penetrigonias dakotensis (17316) |