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Idiospira sulcata

Rhynchonellata - Atrypida - Septatrypidae

Taxonomy
Hyattidina sulcata was named by Williams (1962) [Hyattidina? sulcata]. Its type specimen is BB.26731, a shell (Internal mould of complete shell), and it is a 3D body fossil.

It was recombined as Idiospira sulcata by Candela and Harper (2014).

Synonymy list
YearName and author
1962Hyattidina sulcata Williams pp. 253 - 254 figs. P1. XXV, figs. 47, 53, 58-60
2014Idiospira sulcata Candela and Harper pp. Supplement 1

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
Lophophorata
PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderAtrypidaRzhonsnitskaya 1960
suborderLissatrypidinaCopper 1996
superfamilyLissatrypoideaTwenhofel 1914
familySeptatrypidaeKozlowski 1929
subfamilyIdiospirinae
genusIdiospira
speciessulcata()

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.

Idiospira sulcata Williams 1962
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Diagnosis
ReferenceDiagnosis
A. Williams 1962Small, elliptical, strongly biconvex, smooth shells almost three-quarters as deep as wide and slightly longer than wide; anterior commissure rectimarginate up to the 2-mm. growth-stage but becoming sulcate in adult shells by the development of a wide dorsal sulcus and a corresponding median fold in the deeper pedicle valve; dental lamellae short, pedicle chamber not defined, divided hinge-plate of brachial valve unsupported.