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Dilatocrinus
Taxonomy
Dilatocrinus was named by Webster and Lane (1987) [Sepkoski's age data: C Tour-u Sepkoski's reference number: 704]. Its type is Amphoracrinus multiramosus.
It was assigned to Sunwaptacrinidae by Webster and Lane (1987); and to Monobathrida by Sepkoski (2002).
It was assigned to Sunwaptacrinidae by Webster and Lane (1987); and to Monobathrida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1987 | Dilatocrinus Webster and Lane p. 25 |
| 2002 | Dilatocrinus Sepkoski |
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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. †Dilatocrinus Webster and Lane 1987
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†Dilatocrinus apricus Webster and Lane 1987
†Dilatocrinus multiramosus Meek and Worthen 1873
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. D. Webster and N. G. Lane 1987 | A sunwaptacrinid with BB upflaring, theca low bowl-shaped, calyx strongly lobate, arms drooping proximally, with multiple isotomous branches distally, tegmen stout with extended anal tube bearing terminal spines. |