PBDB Taxon

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Syncyclonema nilsoni

Bivalvia - Pectinida - Entoliidae

Taxonomy

Pecten nilsoni was named by Goldfuss (1835).

It was recombined as Pecten (Syncyclonema) nilssoni by Wolansky (1932); it was recombined as Syncyclonema nilsoni by Dhondt (1971).

Sister species lacking formal opinion data

Pecten concentricum

Synonyms

Pecten spathulatus was named by Roemer (1841).

It was recombined as Syncyclonema spatulata by Böhm (1891); it was synonymized subjectively with Syncyclonema nilsoni by Dhondt (1971).
Pecten orbicularis was named by Sowerby (1817).

It was recombined as Syncyclonema orbiculare by Wright (1942); it was synonymized subjectively with Syncyclonema nilsoni by Malchus et al. (1994); it was recombined as Entolium orbiculare by Dartevelle and Freneix (1957), Dhondt (1971) and Schneider et al. (2013).
Pecten laminosus was named by Mantell (1822).

It was recombined as Pecten (Syncyclonema) laminosus by Noetling (1885); it was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Pecten (Amusium) orbicularis was named by Sowerby (1874).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Pecten darius was named by Orbigny (1882).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Pecten germanicus was named by Wollemann (1900).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Pecten losseriensis was named by Vogel (1900).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Pecten (Syncyclonema) orbicularis was named by Sowerby (1902).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Pecten (Entolium) membranaceus was named by Wanderer (1909).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Pecten (Entolium) nilssoni was named by Wanderer (1909).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Pecten neptuni was named by Orbigny (1850).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Pecten calypso was named by Orbigny (1850).

It was synonymized subjectively with Entolium orbiculare by Orbigny (1850).
Pecten sublaminosus was named by Favre (1869).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Amusium sulcatellum was named by Stoliczka (1871).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Pecten (Amusium) balticus was named by Dames (1874).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Pecten balticus was named by Dames (1885).

It was recombined as Pecten (Entolium) balticus by Noetling (1885); it was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Syncyclonema sublaminosa was named by Favre (1869).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).
Chlamys suborbicularis was named by Cayeux (1958).

It was synonymized subjectively with Entolium orbiculare by Dhondt (1971).

Synonymy list

Year	Name and author
1817	Pecten orbicularis Sowerby
1822	Pecten laminosus Mantell
1835	Pecten nilsoni Goldfuss
1841	Pecten spathulatus Roemer
1846	Pecten spathulatus Rouillier
1850	Pecten calypso Orbigny
1850	Pecten neptuni Orbigny
1869	Pecten sublaminosus Favre
1869	Syncyclonema sublaminosa Favre
1871	Amusium sulcatellum Stoliczka
1874	Pecten (Amusium) balticus Dames
1874	Pecten (Amusium) orbicularis Sowerby
1882	Pecten darius Orbigny
1885	Pecten balticus Dames
1885	Pecten (Entolium) balticus Noetling
1885	Pecten (Syncyclonema) laminosus Noetling
1889	Pecten spatulatus Holzapfel p. 233 figs. Pl 26, figs 3,5
1891	Syncyclonema spatulata Böhm p. 85
1900	Pecten losseriensis Vogel
1900	Pecten germanicus Wollemann
1902	Pecten (Syncyclonema) orbicularis Sowerby
1909	Pecten (Entolium) membranaceus Wanderer
1909	Pecten (Entolium) nilssoni Wanderer
1932	Pecten (Syncyclonema) nilssoni Wolansky
1942	Syncyclonema orbiculare Wright
1957	Entolium orbiculare Dartevelle and Freneix p. 77
1958	Chlamys suborbicularis Cayeux
1971	Entolium orbiculare Dhondt
1971	Syncyclonema nilsoni Dhondt
2013	Entolium orbiculare Schneider et al.

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Bivalvia
—	Eubivalvia
subclass	Autobranchia	(Groblen 1894)
infraclass	Pteriomorphia	(Beurlen 1944)

Rank	Name	Author
—	Ostreomorphi	Ferussac 1822
—	Ostreioni	Ferussac 1822
—	Ostreata	Ferussac 1822
superorder	Ostreiformii	Ferussac 1822
order	Pectinida	(Gray 1854)
suborder	Entoliidina
superfamily	Entolioidea	Teppner 1922
family	Entoliidae	Korobkov 1960
genus	Syncyclonema	Meek 1864
species	nilsoni	(Goldfuss 1835)

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.

†Syncyclonema nilsoni Goldfuss 1835

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Invalid names: Pecten orbicularis Sowerby 1817 [synonym], Pecten spathulatus Roemer 1841 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

low Mg calcitef

Composition 2:

aragonitef

Environment:

marineo

Locomotion:

facultatively mobileg

Life habit:

epifaunalg

Diet:

suspension feederg

Vision:

limitedf

Created:

2004-02-29 16:59:24

Modified:

2004-02-29 18:59:24

Source: g = genus, f = family, o = order

References: Aberhan et al. 2004, Kiessling 2004

Age range: base of the Valanginian to the top of the Danian or 139.80000 to 61.60000 Ma

Collections (31 total)

Time interval	Ma	Country or state	Original ID and collection number
Valanginian	139.8 - 132.9	Svalbard and Jan Mayen	Pecten orbicularis (212041)
Aptian	125.0 - 113.0	Svalbard and Jan Mayen	Pecten orbicularis (212050 212052 212054 212056 212057)
Albian - Early/Lower Cenomanian	113.0 - 93.5	United Kingdom (England)	Pecten orbicularis (198090 198091)
Cenomanian	100.5 - 93.9	United Kingdom (England)	Pecten orbicularis (154013)
Early/Lower Cenomanian	99.6 - 93.5	United Kingdom (England)	Pecten orbicularis (49496)
Early/Lower Turonian	93.5 - 89.3	Czech Republic	Syncyclonema nilssoni (90518)
Coniacian - Santonian	89.8 - 83.6	Belgium (Namur)	Syncyclonema nilsoni (51518)
Campanian	83.6 - 72.1	France	Syncyclonema nilsoni (3747)
Late/Upper Campanian	83.5 - 70.6	Germany	Syncyclonema spatulata (221859)
Maastrichtian	72.1 - 66.0	Denmark	Syncyclonema nilsoni (35039) Syncyclonema nilssoni (1385 1386)
Maastrichtian	72.1 - 66.0	Jordan	Syncyclonema nilssoni (1358)
Maastrichtian	72.1 - 66.0	Netherlands	Syncyclonema nilssoni (1326)
Maastrichtian	72.1 - 66.0	Belgium	Syncyclonema nilssoni (1324)
Maastrichtian	72.1 - 66.0	Bulgaria	Syncyclonema nilssoni (1332)
Maastrichtian	72.1 - 66.0	Ukraine	Syncyclonema nilssoni (1334)
Maastrichtian	72.1 - 66.0	Germany	Syncyclonema nilssoni (1349)
Maastrichtian	72.1 - 66.0	United Kingdom (England)	Syncyclonema nilssoni (1389)
Maastrichtian	72.1 - 66.0	Poland	Syncyclonema nilssoni (1321)
Early/Lower Maastrichtian	70.6 - 66.0	Germany	Syncyclonema spatulata (213668)
Late/Upper Maastrichtian	70.6 - 66.0	Poland	Syncyclonema nilsoni (27818 27822 28080 28082)
Danian	66.0 - 61.6	Denmark	Syncyclonema nilsoni (35040)