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Helaspis

Strophomenata - Productida - Productellidae

Taxonomy
Helaspis was named by Imbrie (1959) [Sepkoski's age data: D Eife Sepkoski's reference number: 963].

It was assigned to Strophomenida by Sepkoski (2002); and to Productellinae by Muir-Wood and Cooper (1960), Williams et al. (2000), Randle and Sansom (2017).

Species lacking formal opinion data
H. dissimilis, H. luma

Synonymy list
YearName and author
1959Helaspis Imbrie
1960Helaspis Muir-Wood and Cooper p. 156
2000Helaspis Williams et al. p. 424
2002Helaspis Sepkoski
2017Helaspis Randle and Sansom

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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
orderProductidaSarycheva and Sokolskaya 1959
suborderProductidina
superfamilyProductoideaGray 1840
familyProductellidaeSchuchert 1929
subfamilyProductellinaeSchuchert 1929
genusHelaspisImbrie 1959

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.

G. †Helaspis Imbrie 1959
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitep
Environment: marineuc
Locomotion: stationarysubo
Attached: yesp
Life habit: low-level epifaunalsubo
Diet: suspension feedersubo
Vision: blindc
Created: 2018-11-10 17:08:41
Modified: 2018-11-10 17:08:41
Source: subo = suborder, c = class, p = phylum, uc = unranked clade
References: Williams et al. 2000, Nesnidal et al. 2013, Aberhan et al. 2004

Age range: base of the Late/Upper Eifelian to the top of the Givetian or 390.50000 to 382.31000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Eifelian393.47 - 387.95Germany H. dissimilis (60134) H. plexa (60467) H. sp. (25368 60446 60466)
Eifelian393.47 - 387.95USA (Michigan) H. sp. (206788)
Middle Devonian393.47 - 382.31USA (Michigan) H. luma (219866)
Late/Upper Eifelian390.5 - 387.95Germany H. plexa ssp. S (60140)
Givetian387.95 - 382.31USA (Michigan) H. luma (207859)