| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Arkonasteridae (disused)
Taxonomy
Arkonasteridae was named by Kesling (1982). It is not extant.
It was assigned to Eugnathina by Kesling (1982).
It was assigned to Eugnathina by Kesling (1982).
Synonymy list
| Year | Name and author |
|---|---|
| 1982 | Arkonasteridae Kesling p. 86 |
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.
Fm. †Arkonasteridae Kesling 1982
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. V. Kesling 1982 | Multi-armed starfish of the suborder Eugnathina having only RR (carinal plates) on aboral sides of the arms. No superomarginals or inferomarginals present. MAPP very large, spoon-shaped, with shallow but distinct grooves aborally for nerve- and water-rings. Mouth frame of adambulacral type, strongly constructed. No axillary plates associated with MAPP. Madreporite aboral, very large and well developed. Pedicellariae atop arms and disk. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Blake 1990, Aberhan 1992 | |||||
Collections
No collection or age range data are available