PBDB Taxon

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Coelostylina obtusa

Gastropoda - Coelostylinidae

Taxonomy

Rissoa obtusa was named by Brown (1839). It is a 3D body fossil. Its type locality is Newtown, River Irk, Bed 8, which is in a Wuchiapingian shallow subtidal packstone in the United Kingdom.

It was recombined as Turbo obtusus by Geinitz (1861) and Langenhan (1899); it was recombined as Omphaloptycha obtusa by Riedel (1917); it was recombined as Coelostylina obtusa by Dietz (1911) and Pattison (1970).

Sister species lacking formal opinion data

C. elatior, C. mandawaensis, C. minuta, C. stockleyi

Synonyms

Rissoa minutissima was named by Brown (1839). It is a 3D body fossil. Its type locality is Newtown, River Irk, Bed 4, which is in a Wuchiapingian shallow subtidal packstone in the United Kingdom.

It was synonymized subjectively with Rissoa obtusa by King (1850); it was synonymized subjectively with Turbo obtusus by Geinitz (1861); it was synonymized subjectively with Coelostylina obtusa by Pattison (1970).
Trochus pusillus was named by Geinitz (1848).

It was synonymized subjectively with Turbo obtusus by Geinitz (1861).

Synonymy list

Year	Name and author
1839	Rissoa minutissima Brown p. 64 figs. Pl 6, figs 12-14
1839	Rissoa obtusa Brown p. 64 figs. Pl 6, figs 15-17
1848	Trochus pusillus Geinitz p. 7 figs. Pl 3, figs 15,16
1850	Rissoa obtusa King p. 207 figs. Pl 16, fig 18
1861	Turbo obtusus Geinitz p. 48 figs. Pl 11, figs 16-19
1899	Turbo obtusus Langenhan p. 51 figs. Pl 4, fig 52
1911	Coelostylina obtusa Dietz p. 487
1917	Omphaloptycha obtusa Riedel p. 65
1970	Coelostylina obtusa Pattison p. 145 figs. Pl 20, figs 8,9

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

Rank	Name	Author
phylum	Mollusca
class	Gastropoda
subclass	Caenogastropoda	(Cox 1959)
family	Coelostylinidae	Cossmann 1909
genus	Coelostylina
species	obtusa	()

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.

†Coelostylina obtusa Brown 1839

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Invalid names: Rissoa minutissima Brown 1839 [synonym], Trochus pusillus Geinitz 1848 [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean
shell height	1	4.40

Composition:

aragonitec

Locomotion:

actively mobilec

Life habit:

epifaunalc

Vision:

limitedc

Created:

2004-02-29 11:40:59

Modified:

2010-02-11 01:35:02

Source: c = class

Reference: Kiessling 2004

Age range: Wuchiapingian or 259.90000 to 254.17000 Ma

Collections (11 total)

Time interval	Ma	Country or state	Original ID and collection number
Wuchiapingian	259.9 - 254.17	Poland	Omphaloptycha obtusa (164497) Turbo obtusus (137886)
Wuchiapingian	259.9 - 254.17	United Kingdom (Northern Ireland)	Coelostylina obtusa (208893 208900 208907)
Wuchiapingian	259.9 - 254.17	United Kingdom (England)	Coelostylina obtusa (208894) Rissoa minutissima (119882 119884 119885) Rissoa minutissima, Rissoa obtusa (type locality: 119886) Rissoa obtusa (130767)