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Eosyngastrioceras quadratum

Cephalopoda - Goniatitida - Glaphyritidae

Taxonomy
Eosyngastrioceras quadratum was named by Titus (2000). Its type specimen is USNM 120617 and is a 3D body fossil. Its type locality is USGS loc. 15782-PC, Cottonwood Mountains, which is in an Arnsbergian marine limestone/siltstone in the Rest Spring Formation of California. It is the type species of Eosyngastrioceras.

Synonymy list
YearName and author
2000Eosyngastrioceras quadratum Titus pp. 39 - 40 figs. Plate 10, figures 1-17; figure 32

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderGoniatitidaHyatt 1884
suborderGoniatitinaHyatt 1884
superfamilyGastrioceratoidea()
familyGlaphyritidae
subfamilyGlaphyritinae
genusEosyngastrioceras
speciesquadratum

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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Diagnosis
ReferenceDiagnosis
A. L. Titus 2000Moderately evolute species with a sub-rounded to sub-rectangular venter and umbilical ratios of approxi- mately two-fifths (42 to 35 percent) of D. Growth lamellae distinct until at least 30 mm diameter.
Measurements
No measurements are available
Composition: aragoniteo
Environment: marinec
Locomotion: fast-movingo
Life habit: nektonico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-01-28 02:36:55
Modified: 2005-10-06 16:36:08
Source: o = order, c = class
References: Kiessling 2003, Kiessling 2004

Age range: Arnsbergian or 327.00000 to 323.70000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Arnsbergian327.0 - 323.7USA (California) Cravenoceras hesperium (type locality: 217081) Eosyngastrioceras quadratum (217147)