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Rioceras

Cephalopoda - Ellesmerocerida - Rioceratidae

Taxonomy
Rioceras was named by Flower (1964) [Sepkoski's age data: O Aren-u Sepkoski's reference number: 298,524]. It is not extant. Its type is Rioceras nondescriptum.

It was assigned to Baltoceratidae by Hook and Flower (1977) and Crick (1981); and to Rioceratidae by Kröger and Evans (2011) and Kröger and Lefebvre (2012).

Synonymy list
YearName and author
1964Rioceras Flower p. 102
1977Rioceras Hook and Flower
1981Rioceras Crick p. 227
2011Rioceras Kröger and Evans p. 20
2012Rioceras Kröger and Lefebvre

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
classCephalopodaCuvier 1797
orderEllesmerocerida()
familyRioceratidae
genusRioceras

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.

G. †Rioceras Flower 1964
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†Rioceras consuetum Sardeson 1896
†Rioceras dartoni Flower 1964
†Rioceras depressum Flower 1964
†Rioceras escandei Thoral 1935
†Rioceras expansum Flower 1964
†Rioceras fusiforme Flower 1964
†Rioceras lobatum Flower 1964
†Rioceras nondescriptum Flower 1964
†Rioceras tubulare Flower 1964
†Rioceras wellsi Flower 1964
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragoniteo
Grouping: solitaryo
Environment: marineo
Locomotion: actively mobileo
Life habit: nektobenthico
Diet: carnivorec
Vision: well-developedc
Created: 2005-10-06 14:32:52
Modified: 2007-09-07 11:44:36
Source: o = order, c = class
References: Kiessling 2004, Aberhan et al. 2004

Age range: base of the Cassinian to the top of the Floian or 482.30000 to 470.00000 Ma

Collections (14 total)


Time interval Ma Country or state Original ID and collection number
Tremadoc486.5 - 477.7Mexico (Oaxaca) R. minore, R. oxacaense (9834)
Demingian485.4 - 478.6USA (New Mexico) R. depressum, R. expansum (88833) R. fusiforme, R. lobatum, R. nondescriptum (88827) R. nondescriptum (88830)
Tremadocian485.4 - 477.7France (Languedoc-Roussillon) R. escandei (101704 101705 101706)
Tremadocian - Floian485.4 - 470.0France (Languedoc-Roussillon) R. escandei (101708 101712)
Canadian485.4 - 457.3USA (Maryland) Wolungoceras sp. (428)
Cassinian482.3 - 470.0USA (Texas) R. dartoni, R. wellsi, R. tubulare (88838)
Cassinian482.3 - 470.0USA (Nevada) R. sp. (88775)
Cassinian482.3 - 470.0USA (Minnesota) Endoceras consuetum (56645)
Floian477.7 - 470.0Morocco (Anti Atlas) R. sp. (166731)