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Lyroschizodus djemelensis
Taxonomy
Lyroschizodus djemelensis was named by Boyd and Newell (1979). Its type specimen is USNM 258972, a valve (Left valve), and it is not a trace fossil.
Synonymy list
Year | Name and author |
---|---|
1979 | Lyroschizodus djemelensis Boyd and Newell p. 17 fig. 22 |
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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.
†Lyroschizodus djemelensis Boyd and Newell 1979
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 2 | 6.87 | 5.85 | 8.07 | 6.96 | 1.57 | |
valve height | 2 | 7.35 | 6.80 | 7.95 | 7.38 | 0.813 |
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Source: o = order, c = class | |||||
Reference: Aberhan et al. 2004 |
Age range: base of the Wordian to the top of the Capitanian or 268.80000 to 259.90000 Ma
Collections (13 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Wordian | Tunisia (Madanin) | Lyroschizodus djemelensis (41654 41835 41853 41862 41864 41875 41880 41976) | |
Capitanian | Tunisia (Madanin) | Lyroschizodus djemelensis (41660 41661 41837 41959 41962) |