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Lyracystis
Taxonomy
Lyracystis was named by Sprinkle and Collins (2006). Its type is Lyracystis radiata.
It was assigned to Lyracystidae by Sprinkle and Collins (2006).
It was assigned to Lyracystidae by Sprinkle and Collins (2006).
Species
L. radiata (type species), L. reesei
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Lyracystis Sprinkle and Collins |
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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. †Lyracystis Sprinkle and Collins 2006
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†Lyracystis radiata Sprinkle and Collins 2006
†Lyracystis reesei Sprinkle and Collins 2006
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Sprinkle and D. Collins 2006 | Large eocrinoids with globular to rounded conical theca having numerous, irregular, ridge- and epispire-bearing thecal plates; three large lyre-shaped arms with biserial-totriserial lateral trunks and numerous long straight brachioles in central V; and very long, thin, multiplated stalk for attachment with domed, ridged, or spiny small plates. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992 | |||||