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Knightina texana
Taxonomy
Kirkbya texana was named by Harlton (1928). It is a 3D body fossil. Its type locality is TX Foram & Ostra, W of Cisco, which is in a Pennsylvanian marine horizon in the Cisco Formation of Texas.
It was recombined as Knightina texana by Kellett (1933) and Melnyk and Maddocks (1988).
It was recombined as Knightina texana by Kellett (1933) and Melnyk and Maddocks (1988).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1928 | Kirkbya texana Harlton p. 135 figs. Pl 21, figs 6a,b |
1933 | Knightina texana Kellett p. 100 figs. Pl 16, figs 23-28 |
1988 | Knightina texana Melnyk and Maddocks p. 34 figs. pl. 2 f. 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.
†Knightina texana Harlton 1928
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | |||||
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valve height | 1 | 0.320 |
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Source: o = order, c = class | |||||
References: Alvarez et al. 2008, Kiessling 2004 |
Age range: base of the Gzhelian to the top of the Artinskian or 303.70000 to 279.30000 Ma
Collections (11 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Pennsylvanian | USA (Texas) | Kirkbya texana (215213) | |
Gzhelian | USA (Kansas) | Knightina texana (133139 133141) | |
Asselian | USA (Kansas) | Knightina texana (95361 110321) | |
Sakmarian | USA (Kansas) | Knightina texana (88235 95375 110317) | |
Artinskian | USA (Kansas) | Knightina texana (110313 110314 110316) |