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Helagras
Taxonomy
Helagras was named by Cope (1883).
It was assigned to Crotalidae by Hay (1902), Hay (1930); to Henophidia by Holman (1983); to Boidae by Carroll (1988); and to Erycinae by Rage (1984), Holman (2000).
It was assigned to Crotalidae by Hay (1902), Hay (1930); to Henophidia by Holman (1983); to Boidae by Carroll (1988); and to Erycinae by Rage (1984), Holman (2000).
Species
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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.
G. †Helagras Cope 1883
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†Helagras orellanensis Holman 1983
†Helagras prisciformis Cope 1883
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Kiessling 2004, Hendy et al. 2009 | |||||