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|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Ophiuroidea - Encrinasteridae
It was assigned to Armathyrasterinae by Harper and Morris (1978); and to Oegophiurida by Sepkoski (2002).
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.
|J. A. Harper and R. W. Morris 1978||Ophiuroids with apparently non-spinose, somewhat petaloid arms; ambulacral ossicles alternating, with roughly boot-shaped oral surfaces; adambulacral ossicles sublateral, composed of L-shaped pinnules between arms, not well developed, lacking marginal frame; podial basins large, restricted to ambulacrals; mouth frame strong.
or pinnular structures; disc concave