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Flexicalymene quadricapita

Trilobita - Phacopida - Calymenidae

Taxonomy
Flexicalymene quadricapita was named by Stumm and Kauffman (1958). Its type specimen is UMMP 9916, a cephalon/head (cranidium), and it is not a trace fossil. Its type locality is Bill's Creek, near Ensign, which is in a Maysvillian/Richmondian carbonate shale in the Bills Creek Formation of Michigan.

Synonymy list
YearName and author
1958Flexicalymene quadricapita Stumm and Kauffman pp. 951 - 953 figs. PI. 123 f. 2-16
2007Flexicalymene quadricapita Hunda and Hughes pp. Table A1

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
subphylumMandibulata
RankNameAuthor
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderCalymeninaSwinnerton 1915
familyCalymenidaeMilne-Edwards 1840
subfamilyFlexicalymeninae
genusFlexicalymene
speciesquadricapita

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.

Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Adult height: 1.0 to < 10g
Spines: noneg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: actively mobileg
Life habit: nektobenthicg
Diet: carnivoref
Vision: well-developedf
Created: 2009-06-09 12:08:00
Modified: 2009-07-20 15:30:25
Source: g = genus, f = family, c = class
References: Harrington et al. 1959, Aberhan et al. 2004, Hendy 2009

Age range: Richmondian or 449.50000 to 443.70000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Maysvillian - Richmondian452.0 - 443.7USA (Michigan) Flexicalymene quadricapita (75964 type locality: 75965)
Richmondian449.5 - 443.7USA (Michigan) Flexicalymene quadricapita (75967)