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Leptaena (Ygdrasilomena)

Strophomenata - Strophomenida - Rafinesquinidae

Taxonomy
Leptaena (Ygdrasilomena) was named by Cocks (2005). Its type is Leptaena (Ygdrasilomena) roomusoksi.

It was assigned to Leptaena by Cocks (2005).

Subtaxa
Leptaena (Ygdrasilomena) roomusoksi (type species)
Species lacking formal opinion data
Leptaena dicax, Leptaena ingrica

Synonymy list
YearName and author
2005Leptaena (Ygdrasilomena) Cocks p. 260

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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
familyRafinesquinidaeSchuchert 1893
subfamilyLeptaeninaeHall and Clarke 1894
genusLeptaenaDalman 1828
subgenusYgdrasilomena

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.

Subg. †Leptaena (Ygdrasilomena) Cocks 2005
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitep
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Adult height: 1.0 to < 10g
Folds: noneg
Ribbing: minorg
Spines: noneg
Internal reinforcement: noneg
Environment: marineuc
Locomotion: stationaryg
Attached: yesp
Life habit: epifaunalg
Diet: suspension feederg
Vision: blindc
Created: 2009-04-13 09:55:02
Modified: 2018-11-11 09:56:39
Source: g = genus, c = class, p = phylum, uc = unranked clade
References: Aberhan et al. 2004, Nesnidal et al. 2013, Hendy et al. 2009

Age range: base of the Hirnantian to the top of the Porkuni or 445.20000 to 443.70000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Katian - Hirnantian453.0 - 443.4Sweden (Dalarne) Leptaena roomusoksi (73413)
Pirgu - Porkuni449.5 - 443.7Sweden (Dalarne) Leptaena roomusoksi (73462)
Pirgu - Hirnantian449.5 - 443.4Sweden (Dalarne) Leptaena roomusoksi (73409)
Hirnantian445.2 - 443.4Sweden (Dalarne) Leptaena roomusoksi (73410 73465)