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Orthothecidae
Taxonomy
Orthothecidae was named by Syssoiev (1957).
It was assigned to Hyolithina by Fisher (1962); and to Orthothecida by Rozanov et al. (1969) and Malinky (1990).
It was assigned to Hyolithina by Fisher (1962); and to Orthothecida by Rozanov et al. (1969) and Malinky (1990).
Subtaxa
Synonymy list
Year | Name and author |
---|---|
1957 | Orthothecidae Syssoiev |
1962 | Orthothecidae Fisher p. 125 |
1969 | Orthothecidae Rozanov et al. p. 144 |
1990 | Orthothecidae Malinky p. 229 |
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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.
Fm. †Orthothecidae Syssoiev 1957
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G. †Lentitheca Sysoyev 1958
G. †Orthotheca Novak 1886
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†Hyolithus (Orthotheca) holmi Cobbold 1931
†Hyolithus (Orthotheca) striata Cobbold 1931
†Orthotheca buelna Lochman 1952
†Orthotheca corrugata Matthew 1899
†Orthotheca daulis Walcott 1905
†Orthotheca doris Walcott 1905
†Orthotheca interstrialis Novak 1891
†Orthotheca shriveri Malinky 2009
†Orthotheca suavis Barrande 1872
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Invalid names: Orthotheca intermedia Novak 1886 [objective synonym]
†Orthotheca subornatus Reed 1909
†Orthotheca teretiuscula Linnarsson 1877
G. †Semielliptotheca Syssoiev 1958
G. †Trapezotheca Syssoiev 1958
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†Trapezotheca aemulus Holm 1893
†Trapezotheca bicostata Rozanov et al. 1969
Diagnosis
No diagnoses are available