Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Aulactis

Ophiuroidea - Stenasteridae

Taxonomy
Aulactis was named by Spencer (1930) [Sepkoski's age data: O Cara Sepkoski's reference number: 2]. It is not extant. Its type is Aulactis orthopeda. It was considered monophyletic by Dean Shackleton (2005).

It was assigned to Protasteridae by Spencer (1940), Owen (1965) and Spencer and Wright (1966); to Oegophiurida by Sepkoski (2002); and to Stenasteridae by Dean Shackleton (2005).

Synonymy list
YearName and author
1930Aulactis Spencer figs. pl. 28 fig. 9
1940Aulactis Spencer p. 504
1965Aulactis Owen p. 551
1966Aulactis Spencer and Wright p. U87
2002Aulactis Sepkoski, Jr.
2005Aulactis Dean Shackleton p. 80

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
RankNameAuthor
phylumEchinodermata
subphylumAsterozoa
classOphiuroidea
familyStenasteridae
genusAulactis

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
ReferenceDiagnosis
J. Dean Shackleton 2005Circumoral ossicle complex covers fourth ambulacral ossicle; thrid ambulacral forms part of circumoral ossicle complex; adambulacral attach to mail jaw plates aborally.