PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Ocruranus finial

Aculifera - Halkieriidae

Taxonomy

Ocruranus finial was named by Liu (1979).

Synonyms

Eohalobia diandongensis was named by Luo et al. (1982). It is a 3D body fossil.

It was synonymized subjectively with Ocruranus finial by Vendrasco et al. (2009).
Gotlandochiton minimus was named by Yü (1987) [Gotlandochiton? minimus]. It is not extant.

It was synonymized subjectively with Ocruranus subpentaedrus by Vendrasco et al. (2009).
Postephaconus tentes was named by Jiang (1980). It is a 3D body fossil. It is the type species of Postephaconus.

It was synonymized subjectively with Ocruranus subpentaedrus by Vendrasco et al. (2009).
Stoliconus vemeres was named by Jiang (1980).

It was synonymized subjectively with Ocruranus finial by Parkhaev and Demidenko (2010).
Stoliconus usitatus was named by Jiang (1980).

It was synonymized subjectively with Ocruranus finial by Parkhaev and Demidenko (2010).
Postestephaconus tentes was named by Jiang (1980).

It was synonymized subjectively with Ocruranus finial by Parkhaev and Demidenko (2010).
Pileconus veloides was named by Jiang (1980).

It was synonymized subjectively with Ocruranus finial by Parkhaev and Demidenko (2010).
Chengjiangoconus trilophodes was named by He and Yang (1982).

It was synonymized subjectively with Ocruranus finial by Parkhaev and Demidenko (2010).
Dengyingoconus trianguliformis was named by Xing et al. (1984).

It was synonymized subjectively with Ocruranus finial by Parkhaev and Demidenko (2010).
Ocruranus regularis was named by Liu (1987).

It was synonymized subjectively with Ocruranus finial by Parkhaev and Demidenko (2010).
Liorichita sublaevis was named by Liu (1987).

It was synonymized subjectively with Ocruranus finial by Parkhaev and Demidenko (2010).
Parapunctella xifingensis was named by Luo and Jiang (1982).

It was synonymized subjectively with Eohalobia diandongensis by Parkhaev and Demidenko (2010).
Meishucunchiton vulgarus was named by Yu (1987).

It was synonymized subjectively with Eohalobia diandongensis by Parkhaev and Demidenko (2010).
Cremnodinotus gryphus was named by Liu (1987). It is a 3D body fossil.

It was synonymized subjectively with Ocruranus finial by Vendrasco et al. (2009).
Parascenella typica was named by Chen and Xiong (1984) [Chen & Xiong in Xing et al.].

It was synonymized subjectively with Ocruranus finial by Parkhaev and Demidenko (2010).
Stephaconus subpentaedrus was named by Jiang (1980). It is not extant.

It was recombined as Ocruranus subpentaedrus by Vendrasco et al. (2009); it was synonymized subjectively with Ocruranus finial by Parkhaev and Demidenko (2010).

Synonymy list

Year	Name and author
1979	Ocruranus finial Liu p. 506–507 figs. pl. 1 f. 1–3, 14
1980	Stoliconus vemeres Jiang p. 116 figs. Pl. 1, fig. 2
1980	Stephaconus subpentaedrus Jiang p. 117 figs. pl. 1 f. 6, 9, 14
1980	Stoliconus usitatus Jiang p. 117 figs. Pl. 2, fig. 14
1980	Pileconus veloides Jiang p. 119 figs. Pl. 1, fig. 15
1980	Postephaconus tentes Jiang p. 119 figs. pl. 1, figs 10â€“13
1980	Postestephaconus tentes Jiang p. 119 figs. P. 1, figs. 10-13
1982	Chengjiangoconus trilophodes He and Yang p. 87 figs. Pl. 1, figs. 4-6
1982	Eohalobia diandongensis Luo et al. p. 194 figs. pl. 21 f. 5- 6
1982	Parapunctella xifingensis Luo and Jiang p. 196 figs. Pl.22, figs. 5, 6
1984	Parascenella typica Chen and Xiong p. 163 figs. pl. 4, figs. 13, 14
1984	Dengyingoconus trianguliformis Xing et al. p. 163 figs. Pl. 4, fig. 15
1987	Ocruranus regularis Liu p. 377 figs. text-fig. 3; Pl. 1, figs. 11, 15-18
1987	Eohalobia diandongensis Liu p. 385–386 figs. pl. 5 f. 3, 4, 8–10, 12, 14-15, 17; pl. 11 f. 1, 3, 4; pl. 12, fig. 1
1987	Liorichita sublaevis Liu p. 387 figs. Pl. 5, fig. 16
1987	Cremnodinotus gryphus Liu p. 390â€“391 figs. pl. 5 f. 11, 13; ?pl. 6 f. 7, 11; ?pl.12 f. 2â€“4
1987	Meishucunchiton vulgarus Yu p. 111 figs. text-fig. 36; Pl. 15, figs. 4-10
1987	Gotlandochiton minimus Yü p. 127 figs. pl. 15 f. 1-3; pl. 16 f. 1-8
1989	Ocruranus finial Qian and Bengtson pp. 103 – 104 fig. 66
1989	Eohalobia diandongensis Qian and Bengtson pp. 108 – 109 figs. 70-71
2009	Ocruranus finial Vendrasco et al. p. 1392 figs. pl. 1 f. 1–10; pl. 2 f. 1, 3–9; pl. 4; pl. 5 f. 18–24; pl. 6
2009	Ocruranus subpentaedrus Vendrasco et al. pp. 1392 - 1393 figs. pl. 1 f. 2; pl. 3 f. 5; pl. 5 f. 1-17

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca

Rank	Name	Author
—	Sachitida	(He 1980)
class	Aculifera	Blumrich 1891
family	Halkieriidae
subfamily	Halkieriinae	Poulson 1967
genus	Ocruranus
species	finial

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.

†Ocruranus finial Liu 1979

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Invalid names: Chengjiangoconus trilophodes He and Yang 1982 [synonym], Dengyingoconus trianguliformis Xing et al. 1984 [synonym], Liorichita sublaevis Liu 1987 [synonym], Ocruranus diandongensis Luo et al. 1982 [synonym], Ocruranus gryphus Liu 1987 [synonym], Ocruranus regularis Liu 1987 [synonym], Parascenella typica Chen and Xiong 1984 [synonym], Pileconus veloides Jiang 1980 [synonym], Postestephaconus tentes Jiang 1980 [synonym], Stephaconus subpentaedrus Jiang 1980 [synonym], Stoliconus usitatus Jiang 1980 [synonym], Stoliconus vemeres Jiang 1980 [synonym]

Diagnosis

Reference	Diagnosis
M. J. Vendrasco et al. 2009 (Ocruranus subpentaedrus)	Skeleton that consists of three types of bilaterally symmetrical shell plates. Main shell plate (Ocruranus subpentaedrus sensu stricto; tail valve?) up to 1.5 mm long, highly arched, a bit wider than long, furrow underneath apex; with pronounced sub-apical shelf underneath furrow, sub-apical margin straight or with emargination. Intermediate valve about 0.5 to 1 mm long, with butterfly outline produced by lateral margins that are rounded and an emargination at the anterior and posterior mid- point. Apparent head valve (Eohalobia Type A) roughly equidi- mensional, with emargination between rounded projections at the posterior margin.