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Arctomeekoceras tardum

Cephalopoda - Ceratitida - Proptychitidae

Taxonomy
Arctomeekoceras tardum was named by Guex et al. (2005). Its type specimen is JGX-521 and is a 3D body fossil. Its type locality is Hammond Creek JGX-BETA-HC1, Bear Lake Valley, which is in a Spathian marine siltstone in the Thaynes Formation of Idaho.

Synonymy list
YearName and author
2005Arctomeekoceras tardum Guex et al. p. 6 figs. Pl 4, fig 3
2010Arctomeekoceras tardum Guex et al. p. 73 figs. Pl 40, figs 3-6; pl 58, fig 4

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderCeratitidaHyatt 1884
suborderMeekoceratina
superfamilyMeekoceratoideaWaagen 1895
familyProptychitidaeWaagen 1895
genusArctomeekocerasPopov 1962
speciestardum

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.

Arctomeekoceras tardum Guex et al. 2005
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Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height219.116.522.019.23.89
shell diameter238.133.044.038.57.78
shell inflation25.985.506.506.000.707

Composition: aragoniteo
Environment: marinec
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-01-28 02:33:06
Modified: 2005-10-06 16:36:47
Source: o = order, c = class
References: Kiessling 2003, Kiessling 2004

Age range: Spathian or 248.10000 to 246.70000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Spathian248.1 - 246.7USA (Idaho) Arctomeekoceras tardum (109408 type locality: 109409 123897)