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Knightina ultima
Taxonomy
Kellettina ultima was named by Kozur (1985). Its type specimen is P 1447/Ko 1980 I-550 and is a 3D body fossil. Its type locality is Nagyvisnyó 4 borehole, Mihalovits quarry, sample Nv 4/45, which is in a Wuchiapingian carbonate limestone in the Nagyvisnyo Formation of Hungary.
It was recombined as Knightina ultima by Chitnarin (2012).
It was recombined as Knightina ultima by Chitnarin (2012).
Sister species lacking formal opinion data
Synonymy list
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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.
†Knightina ultima Kozur 1985
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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valve height | 2 | 0.290 | 0.290 | 0.290 | 0.290 | - |
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Source: o = order, c = class | |||||
References: Alvarez et al. 2008, Kiessling 2004 |
Age range: base of the Asselian to the top of the Wuchiapingian or 298.90000 to 254.17000 Ma
Collections (4 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Asselian - Sakmarian | Thailand | Knightina ultima (137900) | |
Roadian | Thailand | Knightina ultima (137902) | |
Wordian | Thailand | Knightina ultima (137920) | |
Wuchiapingian | Hungary | Kellettina ultima (146200) |