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Opabiniidae

Opabiniidae

Taxonomy
Opabiniidae was named by Walcott (1912).

It was assigned to Panarthropoda by Pates et al. (2022).

Subtaxa

Synonymy list
YearName and author
1912Opabiniidae Walcott
2022Opabiniidae Pates et al. p. 20212093

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
RankNameAuthor
Panarthropoda
Life
familyOpabiniidaeWalcott 1912
familyOpabiniidaeWalcott 1912

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. †Opabiniidae Walcott 1912
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G. †Opabinia Walcott 1912
G. †Utaurora Pates et al. 2022
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Utaurora comosa Pates et al. 2022
Diagnosis
ReferenceDiagnosis
S. Pates et al. 2022Panarthropod 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
Delamaran513.0 - 505.0Canada (British Columbia) Opabinia regalis (84417 84422)
Marjumian513.0 - 498.5USA (Utah) Utaurora comosa (80125)
Darriwilian467.3 - 458.4United Kingdom (Wales) Opabinia sp. (230215)