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Lepidocystidae

Lepidocystoidea - Lepidocystidae

Taxonomy
Lepidocystidae was named by Durham (1967). Its type is Lepidocystis.

It was assigned to Imbricata by Sprinkle (1973) and Fatka and Kordule (1990); and to Lepidocystoidea by Beaver et al. (1967) and Nardin et al. (2017).

Subtaxa

Synonymy list
YearName and author
1967Lepidocystidae Beaver et al. p. S634
1967Lepidocystidae Durham
1973Lepidocystidae Sprinkle p. 60
1990Lepidocystidae Fatka and Kordule p. 315
2017Lepidocystidae Nardin et al.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
RankNameAuthor
phylumEchinodermata
subphylumBlastozoa
classLepidocystoideaDurham 1967
familyLepidocystidaeDurham 1967
familyLepidocystidaeDurham 1967

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. †Lepidocystidae Durham 1967
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G. †Kinzercystis Sprinkle 1973
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Kinzercystis durhami Sprinkle 1973
G. †Lepidocystis Foerste 1938
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Lepidocystis wanneri Foerste 1938
G. †Vyscystis Fatka and Kordule 1990
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Vyscystis ubaghsi Fatka and Kordule 1990
Diagnosis
ReferenceDiagnosis
J. Sprinkle 1973Early eocrinoids with strongly differentiated oral and aboral plated surfaces. Aboral portion made up of a large conical calyx and a smaller, long or short, cylindrical, attachment holdfast, both having numerous adorally imbricating plates. Oral surface covers large adoral end of conical calyx and consists of large or small adjacent plates bearing numerous epispires (sutural pores). Ambulacral system confined to oral surface, consisting of a central covered mouth, 5 radially arranged ambulacral grooves depressed into the oral surface, and numerous biserial brachioles alternately arranged alongside each ambulacrum. Anal pyramid located at edge of oral surface in "CD" interradius; possible hydropore-gonopore combination located between it and mouth. Two genera; early Cambrian
Measurements
No measurements are available
Composition: high Mg calcitep
Ontogeny: accretion, addition of partsp
Environment: marinep
Locomotion: stationarysubp
Life habit: epifaunalsubp
Diet: suspension feedersubp
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2009-09-21 12:36:39
Modified: 2009-09-21 14:36:39
Source: subp = subphylum, p = phylum
References: Bambach et al. 2007, Aberhan 1992

Age range: base of the Dyeran to the top of the Delamaran or 516.00000 to 505.00000 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Dyeran516.0 - 513.0USA (Pennsylvania) Lepidocystis wanneri (192 11110 90645 226193) Lepidocystis wanneri, Kinzercystis durhami (90622)
Dyeran - Delamaran516.0 - 505.0USA (Pennsylvania) Lepidocystis sp. (226183)
Middle Cambrian513.0 - 501.0Czech Republic (Středočeský kraj) Vyscystis ubaghsi (193781 201602)
Middle Cambrian513.0 - 501.0Czech Republic (Litavka) Vyscystis sp. (76455)
Marjumian513.0 - 498.5Czech Republic (Středočeský) Vyscystis ubaghsi (186256 186257)