| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Alphacrinus
Taxonomy
Alphacrinus was named by Guensburg (2010). Its type is Alphacrinus mansfieldi.
It was assigned to Alphacrinidae by Guensburg (2010).
It was assigned to Alphacrinidae by Guensburg (2010).
Species
A. mansfieldi (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2010 | Alphacrinus Guensburg pp. 1213 - 1214 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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 | |
|---|---|---|
| T. E. Guensburg 2010 | A disparid two or three anterior ray interbrachials and two fixed brachials, eight plates in the CD interrray including two fixed anal series plates and a plate below and to the left of the first anal series plate, rays initially branching isotomously, with endotomously branched ramules above, long anal sac extending above arms with heptagonal to pentagonal plates, stem pentameric to the cup base. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: subc = subclass, c = class, p = phylum | |||||
| References: Kiessling 2004, Aberhan et al. 2004, Aberhan 1992 | |||||