Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Flexicalymeninae

Trilobita - Phacopida - Calymenidae

Synonymy list
YearName and author
1977Flexicalymeninae Siveter

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderCalymeninaSwinnerton 1915
familyCalymenidaeMilne-Edwards 1840
subfamilyFlexicalymeninae
subfamilyFlexicalymeninae

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.

Subfm. †Flexicalymeninae Siveter 1977
show all | hide all
G. †Flexicalymene Shirley 1936
+
†Flexicalymene aurora Hughes 1969
†Flexicalymene cambrensis Salter 1865
†Flexicalymene caractaci Salter 1865
+
Invalid names: Flexicalymene cobboldi Dean 1963 [synonym], Flexicalymene trigonoceps Bancroft 1949 [synonym]
†Flexicalymene cavei Price 1974
†Flexicalymene granulosa Foerste 1909
†Flexicalymene griphus Ross 1967
†Flexicalymene incerta Barrande 1852
†Flexicalymene magnipapilla Stumm and Kauffman 1958
†Flexicalymene meeki Foerste 1910
†Flexicalymene onniensis Shirley 1936
†Flexicalymene peregrina Zhou and Zhou 2006
†Flexicalymene planilabra Stumm and Kauffman 1958
†Flexicalymene praelongicephala Stumm and Kauffman 1958
†Flexicalymene quadricapita Stumm and Kauffman 1958
†Flexicalymene retrorsa Foerste 1910
+
†Flexicalymene scabustula Siveter 1977
†Flexicalymene scotica Lamont 1949
†Flexicalymene shirleyi Tripp 1954
†Flexicalymene tazarinensis Destombes 1966
†Flexicalymene trinucleina Tullberg 1882
†Flexicalymene vaccarii Waisfeld and Sanchez 1993
G. †Metacalymene Kegel 1927
G. †Sthenarocalymene Siveter 1977
+
†Sthenarocalymene lirella Siveter 1977
G. †Thelecalymene Whittington 1971
+
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesf
Adult length: 10 to < 100f
Adult width: 10 to < 100f
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: actively mobilef
Life habit: nektobenthicf
Diet: carnivoref
Vision: well-developedf
Created: 2009-06-11 14:42:12
Modified: 2012-08-27 07:17:38
Source: f = family, c = class
References: Aberhan et al. 2004, Hendy 2009

Age range: base of the Llandeilo to the top of the Lochkovian or 461.10000 to 410.80000 Ma

Collections (791 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Ordovician485.4 - 443.8USA (New York) Flexicalymene sp. (332)
Middle Ordovician470.0 - 458.4USA (New York) Flexicalymene sp. (333 334 335 430)
Middle Ordovician470.0 - 458.4USA (Kentucky) Flexicalymene sp. (10745)
Llanvirn468.0 - 458.4United Kingdom Flexicalymene aurora (234032)
Llanvirn468.0 - 458.4Spain (Asturias) Flexicalymene sp. (21085)
Darriwilian467.3 - 458.4China (Xinjiang) Sthenarocalymene sp. (188380)
Early/Lower Llandeilo466.0 - 460.9United Kingdom (Wales) Flexicalymene sp. (3366 3367)
Late/Upper Llanvirn463.5 - 460.9United Kingdom Flexicalymene cambriensis (69534 69535 69572 69573 69574 69575 69576 69597 69598)
Late/Upper Llanvirn463.5 - 460.9United Kingdom (Wales) Flexicalymene cambriensis (3318 69529 69537 69544 69545 69548 69582 69583)
Llandeilo461.1 - 458.4United Kingdom Flexicalymene cambriensis (69586 69587 69588 69589 69590 69591 69592 69596)

Youngest occurrences
Time interval Ma Country or state PBDB collection number
Telychian438.5 - 433.4China (Shaanxi) Sthenarocalymene sp. (23251)
Telychian - Sheinwoodian438.5 - 430.5Argentina Flexicalymene vaccarii (25103)
Wenlock433.4 - 427.4Ukraine Flexicalymene studenicense (23349)
Wenlock - Ludlow433.4 - 423.0Argentina Flexicalymene sp. (25060 25062)
Gorstian427.4 - 425.6Czech Republic Metacalymene baylei (14106)
Gorstian427.4 - 425.6Australia (Australian Capital Territory) Sthenarocalymene australis (25639)
Ludfordian425.6 - 423.0Australia (New South Wales) Sthenarocalymene australis (25634)
Ludfordian425.6 - 423.0Australia (Australian Capital Territory) Sthenarocalymene australis (25677)
Ludfordian425.6 - 423.0Czech Republic Metacalymene baylei (14067 14071)
Lochkovian419.2 - 410.8Australia (Victoria) Sthenarocalymene sp. (7196 182206)