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Trachyceras symmetricum

Cephalopoda - Ceratitida - Trachyceratidae

Taxonomy
Trachyceras symmetricum was named by Salomon (1895). It is not extant. Its type locality is North side of the Marmolata / Passo di Fedaia, which is in a Triassic marine horizon in the Marmolata Formation of Italy.

Sister species lacking formal opinion data
T. acutecostatum

Synonymy list
YearName and author
1895Trachyceras symmetricum Salomon

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderCeratitidaHyatt 1884
superfamilyTrachyceratoidea(Haug 1894)
familyTrachyceratidaeHaug 1894
subfamilyTrachyceratinaeHaug 1894
genusTrachycerasLaube 1869
speciessymmetricum

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.

†Trachyceras symmetricum Salomon 1895
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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: Middle Triassic or 247.20000 to 237.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Middle Triassic247.2 - 237.0Italy (Trento) Trachyceras symmetricum (type locality: 202272)