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Porocrinida
Discussion
"Porocrinida" was first used in Wright et al., 2017 but was mistakenly attributed to Miller and Gurly, 1894 therein.
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Taxonomy
Porocrinida was named by Wright et al. (2017).
It was assigned to Porocrinoidea by Wright et al. (2017) and Wright et al. (2019).
It was assigned to Porocrinoidea by Wright et al. (2017) and Wright et al. (2019).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 2017 | Porocrinida Wright et al. |
| 2019 | Porocrinida Wright et al. |
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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.
Or. †Porocrinida Wright et al. 2017
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G. †Carabocrinus Billings 1857
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†Carabocrinus boltoni Ausich and Copper 2010
†Carabocrinus radiatus Billings 1857
†Carabocrinus tuberculatus Billings 1859
G. †Illemocrinus Eckert 1987
G. †Triboloporus Kesling and Paul 1968
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. F. Wright et al. 2017 | The Porocrinida is stem-defined as the most inclusive clade containing Porocrinus conicus Billings, 1857 and Carabocrinus radiatus Billings, 1857 but not Hybocrinus conicus Billings, 1857...The stem-based definition of the Porocrinida makes them sister to the Hybocrinida and retains the taxonomic membership of this clade recovered in Ausich et al. (2015) andGuensburg (2012). Porocrinids can easily be distinguished from hybocrinids in having a dicyclic calyx and the presence of thecal respiratory structures (Kesling and Paul, 1968; Sprinkle, 1982a).
Wright et al., 2017 |