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Cycloconcha speciosa

Bivalvia - Actinodontida - Cycloconchidae

Taxonomy
Pullastra speciosa was named by McCoy (1846). Its type specimen is NMI G.5. 1979 and is a 3D body fossil.

It was recombined as Cycloconcha speciosa by Tunnicliff (1982).

Sister species lacking formal opinion data
C. milleri, C. ovata

Synonyms
Synonymy list
YearName and author
1839Avicula orbicularis de Sowerby and Murchison p. 635 figs. Pl. 20. f. 2 - 3
1846Pullastra speciosa McCoy p. 17 figs. pl. 2, fig. 2
1982Cycloconcha speciosa Tunnicliff pp. 82 - 85 figs. Plate 13, figs. 5, 6, 9, 10, 12, 13

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
RankNameAuthor
subclassAutobranchia(Groblen 1894)
infraclassHeteroconchia(Gray 1854)
—CardiomorphiFerussac 1822
—CarditioniDall 1889
orderActinodontida()
superfamilyAnodontopsoideaMiller 1889
familyCycloconchidaeUlrich 1884
genusCycloconcha
speciesspeciosa(McCoy 1846)

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.

†Cycloconcha speciosa McCoy 1846
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Invalid names: Cycloconcha orbicularis de Sowerby and Murchison 1839 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
valve height619.817.523.519.22.20
valve diagonal620.418.323.519.71.92

Composition: aragonitec
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Thickness: thing
Folds: noneg
Ribbing: noneg
Spines: noneg
Internal reinforcement: noneg
Locomotion: facultatively mobileg
Life habit: infaunalg
Diet: suspension feederg
Vision: blindc
Created: 2009-06-05 11:48:41
Modified: 2018-11-10 16:52:53
Source: g = genus, c = class
References: Hendy 2009, Aberhan et al. 2004

Age range: base of the Soudleyan to the top of the Onnian or 458.20000 to 449.50000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Soudleyan - Longvillian458.2 - 455.0United Kingdom (Northern Ireland) Cycloconcha speciosa (13840)
Soudleyan - Marshbrookian458.2 - 454.0United Kingdom (England) Avicula orbicularis (3654)
Actonian - Onnian454.0 - 449.5United Kingdom (England) Avicula orbicularis (3656 3658)