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Megamyonia unicostata

Strophomenata - Strophomenida - Furcitellidae

Taxonomy
Strophomena unicostata was named by Meek and Worthen (1868).

It was recombined as Rafinesquina unicostata by Hall and Clarke (1892); it was recombined as Leptaena unicostata by Whiteaves (1897); it was recombined as Megamyonia unicostata by Wang (1949) and Pope (1976).

Synonymy list
YearName and author
1868Strophomena unicostata Meek and Worthen p. 335 figs. pl. 4 f. 11
1892Rafinesquina unicostata Hall and Clarke figs. pl. 15A f. 39; pl. 20 f. 25
1897Leptaena unicostata Whiteaves p. 174
1949Megamyonia unicostata Wang p. 33 figs. Plate 9 A, figures 1-6
1976Megamyonia unicostata Pope pp. 177, 188

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
RankNameAuthor
phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
classStrophomenataWilliams et al 1996
orderStrophomenidaOpik 1934
superfamilyStrophomenoideaKing 1846
familyFurcitellidae(Williams 1965)
genusMegamyoniaWang 1949
speciesunicostata()

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.

†Megamyonia unicostata Meek and Worthen 1868
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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: stationaryo
Attached: yesp
Life habit: epifaunalo
Diet: suspension feedero
Vision: blindc
Created: 2009-06-10 11:30:00
Modified: 2009-06-10 13:30:00
Source: g = genus, 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 Edenian to the top of the Richmondian or 451.00000 to 445.50000 Ma

Collections (13 total)


Time interval Ma Country or state Original ID and collection number
Edenian451.0 - 450.2USA (Illinois, Iowa) Megamyonia unicostata (23809)
Edenian451.0 - 450.2USA (Minnesota) Megamyonia unicostata (23281)
Edenian451.0 - 450.2Canada (Northwest Territories) Megamyonia unicostata (24636 192139)
Edenian - Maysvillian451.0 - 449.6USA (Illinois, Iowa) Megamyonia unicostata (23810)
Edenian - Maysvillian451.0 - 449.6USA (Minnesota) Megamyonia unicostata (23282)
Maysvillian450.2 - 449.6USA (Minnesota) Megamyonia unicostata (23283)
Maysvillian450.2 - 449.6USA (Illinois, Iowa) Megamyonia unicostata (23811)
Maysvillian450.2 - 449.6USA (Iowa) Megamyonia unicostata (26683)
Maysvillian450.2 - 449.6Canada (Manitoba) Leptaena unicostata (174050)
Richmondian449.6 - 445.5USA (Iowa) Megamyonia unicostata (13260)
Richmondian - Gamachian449.6 - 443.7Canada (Manitoba) Megamyonia unicostata (23018)
Ashgill449.5 - 443.7USA (Tennessee) Leptaena unicostata (5393)