Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Opabiniidae
Taxonomy
Synonymy list
Year | Name and author |
---|---|
1912 | Opabiniidae Walcott |
2022 | Opabiniidae Pates et al. p. 20212093 |
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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.
Diagnosis
Reference | Diagnosis | |
---|---|---|
S. Pates et al. 2022 | Panarthropod with a short head region bearing a single unjointed appendage (proboscis); slender trunk with dorsally transverse furrows delimiting segments; one pair of lateral flaps per body segment; setal blades cover at least part of anterior margin of lateral flaps; caudal fan composed of multiple pairs of caudal blades; pair of short caudal rami with serrated adaxial margins. |
Measurements
No measurements are available
No ecological data are available
Age range: base of the Delamaran to the top of the Darriwilian or 513.00000 to 458.40000 Ma
Collections (4 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Delamaran | Canada (British Columbia) | Opabinia regalis (84417 84422) | |
Marjumian | USA (Utah) | Utaurora comosa (80125) | |
Darriwilian | United Kingdom (Wales) | Opabinia sp. (230215) |