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Eurycephalites

Cephalopoda - Ammonitida - Sphaeroceratidae

Taxonomy
Eurycephalites is a genus. It is not extant.

It was assigned to Macrocephalitidae by Arkell et al. (1957); to Eurycephalitinae by Parent (1998); and to Ammonoidea by Sepkoski (2002).

Species
E. extremus, E. gottschei, E. involutus, E. rotundus
Species lacking formal opinion data
E. belgranoi, E. gottchei, E. vergarensis

Synonymy list
YearName and author
1957Eurycephalites Arkell et al. p. 294
1998Eurycephalites Parent p. 110
2002Eurycephalites Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitidaHaeckel 1866
suborderAmmonitinaHyatt 1889
superfamilyStephanoceratoidea(Newmayr 1875)
familySphaeroceratidaeBuckman 1920
subfamilyEurycephalitinaeThierry 1976
genusEurycephalites

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.

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†Eurycephalites extremus Tornquist 1898
†Eurycephalites gottschei Tornquist 1898
†Eurycephalites involutus Riccardi and Westermann 1991
†Eurycephalites rotundus Tornquist 1898
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height625.64.6047.040.717.1
shell diameter649.58.8099.970.135.0
shell inflation65.211.269.037.002.78

Composition: aragoniteo
Environment: marinec
Locomotion: fast-movingo
Life habit: nektonico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-01-28 02:27:03
Modified: 2009-10-08 14:14:55
Source: o = order, c = class
References: Kiessling 2004, Kiessling 2003

Age range: base of the Bathonian to the top of the Early/Lower Callovian or 168.20000 to 161.50000 Ma

Collections (17 total)


Time interval Ma Country or state Original ID and collection number
Middle Jurassic174.7 - 161.5Argentina E. gottschei (236383)
Bathonian168.2 - 165.3Argentina (Neuquén) E. belgranoi (235863) E. gottchei (235939) E. gottschei (235949 235950 235952)
Late/Upper Bathonian168.2 - 165.3Argentina (Neuquen) E. belgranoi (158969) E. gottschei (158980 158981) E. sp. (4881)
Bathonian - Callovian168.2 - 161.5Argentina (Mendoza) E. extremus (136702)
Early/Lower Callovian165.3 - 161.5Argentina (Mendoza) E. rotundus (136693)
Early/Lower Callovian165.3 - 161.5Argentina (Nequen) E. vergarensis, E. rotundus (4883)
Early/Lower Callovian165.3 - 161.5Chile E. rotundus (136697)
Early/Lower Callovian165.3 - 161.5Argentina (Neuquen) E. gottschei (158983) E. rotundus, E. involutus, E. extremus (158984)
Late/Upper Callovian165.3 - 161.5Chile E. extremus (136698)