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Leptaena (Septomena) juvenilis

Strophomenata - Strophomenida - Strophomenidae

Taxonomy
Leptaena juvenilis was named by Öpik (1930) [= Leptaena rhomboidalis Bekker, 1921, pl. 70, pl. 4 f. 9].

It was recombined as Kiaeromena juvenilis by Spjeldnaes (1957); it was recombined as Septomena juvenilis by Roomusoks (1989), Roomusoks (2004); it was recombined as Leptaena (Septomena) juvenilis by Rasmussen et al. (2012).

Sister species lacking formal opinion data
L. dicax, L. khantaica, L. qianbeiensis, L. rhomboidalls, L. rugosa, L. xyziltchigaensis

Synonymy list
YearName and author
1930Leptaena juvenilis Öpik p. 173 figs. pl. 11: 140-141, pl. 12: 142-145
1934Leptaena juvenilis Opik
1957Kiaeromena juvenilis Spjeldnaes figs. pl. 7: 17
1989Septomena juvenilis Roomusoks
2004Septomena juvenilis Roomusoks
2012Leptaena (Septomena) juvenilis Rasmussen et al. p. 14

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classStrophomenataWilliams et al 1996
orderStrophomenidaOpik 1934
superfamilyStrophomenoideaKing 1846
familyStrophomenidaeKing 1846
genusLeptaenaRoomusoks 1989
subgenusSeptomena
speciesjuvenilis()

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.

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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitep
Entire body: yesf
Adult length: 10 to < 100f
Adult width: 10 to < 100f
Environment: marineuc
Locomotion: stationaryo
Attached: yesp
Life habit: epifaunalo
Diet: suspension feedero
Vision: blindc
Created: 2009-06-11 19:20:40
Modified: 2009-06-11 21:20:40
Source: f = family, o = order, c = class, p = phylum, uc = unranked clade
References: Aberhan et al. 2004, Nesnidal et al. 2013, Hendy 2009

Age range: base of the Lasnamagi to the top of the Oandu or 461.40000 to 451.80000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Lasnamagi461.4 - 459.7Estonia (Harju) Septomena juvenilis (168497)
Uhaku459.7 - 458.0Estonia (Harju) Septomena juvenilis (168477)
Uhaku459.7 - 458.0Estonia Septomena juvenilis (168764)
Caradoc458.2 - 449.5Norway (Hedmark) Kiaeromena juvenilis (194708 194825)
Kukruse458.0 - 456.8Estonia (Ida-Viru) Septomena juvenilis (168534)
Kukruse458.0 - 456.8Estonia Septomena juvenilis (160501 167579)
Keila - Oandu453.9 - 451.8Norway (Oslo Asker) Kiaeromena juvenilis (194842)