Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Grewingkia robustum
Taxonomy
Streptelasma robustum was named by Whiteaves (1896).
It was recombined as Grewingkia robustum by Neuman (1969), Elias (1981).
It was recombined as Grewingkia robustum by Neuman (1969), Elias (1981).
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.
†Grewingkia robustum Whiteaves 1896
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: o = order, c = class | |||||
Reference: Kiessling 2004 |
Age range: base of the Middle Ordovician to the top of the Late/Upper Ordovician or 471.30000 to 443.10000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Middle Ordovician - Late/Upper Ordovician | Canada (Nunavut) | Streptelasma robustum (24233) |