|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Ophiuroidea - Encrinasteridae
It was assigned to Lysophiurae by Schuchert (1915); to Lysophiuricae by Owen (1965); to Lysophiurina by Spencer and Wright (1966), Harper and Morris (1978), Jell (1997) and Jell and Theron (1999); and to Ophiuroidea by Dean Shackleton (2005).
|Year||Name and author|
|1899||Aspidosomatidae Gregory p. 351|
|1915||Encrinasteridae Schuchert p. 241|
|1965||Encrinasteridae Owen p. 552|
|1966||Encrinasteridae Spencer and Wright p. U83|
|1978||Encrinasteridae Harper and Morris p. 155|
|1997||Encrinasteridae Jell p. 309|
|1999||Encrinasteridae Jell and Theron p. 163|
|2005||Encrinasteridae Dean Shackleton p. 81|
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.
|J. Dean Shackleton 2005||Narrow transverse groove crossing distal region of ambulacral perradial ridge; groove spines short and square; loss of vertical spines; broad longitudinal groove crossing lateral region of arms; first and second buccal pores closely spaced, with proximal pore slightly more aboral in position; adambulacrals attach to interradial lateral surface of mouth angle plates; most proximal radial adambulacral partially obscuring podial basin; loss of radial oral spines.|