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Eurekaspirifer

Rhynchonellata - Spiriferida - Adolfiidae

Taxonomy
Eurekaspirifer was named by Johnson (1966) [Sepkoski's age data: D Emsi-l Sepkoski's reference number: 25]. It is not extant. It is the type genus of Eurekaspiriferinae.

It was assigned to Guerichellinae by Johnson (1966); to Spinellinae by Johnson (1970); to Spiriferida by Sepkoski (2002); and to Eurekaspiriferinae by Williams et al. (2006).

Synonymy list
YearName and author
1966Eurekaspirifer Johnson
1970Eurekaspirifer Johnson p. 207
2002Eurekaspirifer Sepkoski, Jr.
2006Eurekaspirifer Williams et al. p. 1711

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderSpiriferida
suborderSpiriferidina
superfamilyAdolfioideaSartenaer 1966
familyAdolfiidaeSartenaer 1966
subfamilyEurekaspiriferinaeJohnson 1994
genusEurekaspirifer

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.

Diagnosis
ReferenceDiagnosis
J. G. Johnson 1966Pedicle valve lacking a subdelthyrial plate and possessing long closely spaced dental lamellae that recurve anteriorly toward the midline of the valve. Brachial valve with short to long adminicula variably developed. Diductor attachment site on large shells advances anteriorly, forming a pair of discrete, deeply striate lobes that attach to crural plates flanking the notothyrial cavity. Fine external ornament radially striate and non-lamellose.
J. G. Johnson 1970Pedicle valve lacking a subdelthyrial plate and possessing long, closely spaced dental lamellae that recurve anteriorly toward the midline of the valve. Brachial valve with short to long adminicula variably developed and most prominent in small shells. Cardinal process on large shells advances anteriorly, forming a pair of discrete, deeply striate lobes that attach to platelike crural bases flanking the notothyrial cavity. Fine exterior ornament is radially striate and nonfrilly.