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Subdichotomoceras

Cephalopoda - Ammonitida - Perisphinctidae

Taxonomy
Subdichotomoceras was named by Spath [Sepkoski's age data: J Kimm-l J Tith-l]. It is not extant.

It was assigned to Virgatosphinctinae by Verma and Westermann (1973); to Pseudovirgatitinae by Mesezhnikov (1984); and to Ammonoidea by Sepkoski (2002).

Synonymy list
YearName and author
1973Subdichotomoceras Verma and Westermann p. 183
1984Subdichotomoceras Mesezhnikov p. 136
2002Subdichotomoceras Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitidaHaeckel 1866
suborderAmmonitinaHyatt 1889
superfamilyPerisphinctoidea(Steinman 1890)
familyPerisphinctidaeSteinmann 1890
subfamilyPseudovirgatitinaeSpath 1931
genusSubdichotomocerasSpath

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. †Subdichotomoceras Spath
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Subg. †Subdichotomoceras (Sphinctoceras) Neaverson 1925
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†Subdichotomoceras filiplex Quenstedt 1888
†Subdichotomoceras latissimum Zwierzycki 1914
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragoniteo
Environment: marinec
Locomotion: fast-movingo
Life habit: nektonico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-01-28 02:27:03
Modified: 2009-10-08 14:14:55
Source: o = order, c = class
References: Kiessling 2003, Kiessling 2004

Age range: base of the Early/Lower Kimmeridgian to the top of the Early/Lower Tithonian or 154.80000 to 145.06000 Ma

Collections (29 total)


Time interval Ma Country or state Original ID and collection number
Oxfordian - Berriasian161.5 - 137.05Spain S. pseudocolubrinus (73297)
Late/Upper Oxfordian - Early/Lower Kimmeridgian157.9 - 152.21USA (California) S. filiplex (192835 192837 192852)
Early/Lower Kimmeridgian154.8 - 152.21Mexico ( San Luis Potosí ) S. sp. (192468 192469 192470 192471)
Kimmeridgian154.8 - 149.2Tanzania S. sparsiplicatum (35573 79094)
Kimmeridgian - Early/Lower Tithonian154.8 - 145.06Tanzania S. sparsiplicatum (35570)
Kimmeridgian - Early/Lower Tithonian154.8 - 145.06Antarctica S. sp. (36768)
Tithonian - Kimmeridgian149.2 - 149.2Yemen (Wadi Hajar) S. latissimum (2569)
Early/Lower Tithonian149.2 - 145.06Russian Federation (Krasnoyarsk) S. subcrassum (164353)
Early/Lower Tithonian149.2 - 145.06Germany (Bayern) S. inerme, S. sp. (13414)
Early/Lower Tithonian149.2 - 145.06Mexico S. inversum (197728 197736 197759 197760 197975 197976)
Early/Lower Tithonian149.2 - 145.06Tanzania S. sparsiplicatum (79029)
Early/Lower Tithonian149.2 - 145.06Hungary S. pseudocolobrinus (23872)
Early/Lower Tithonian149.2 - 145.06Italy (Ancona) S. psudocolubrinum (46538) S. simplex (46539)
Middle Tithonian149.2 - 143.1Argentina (Catán Lil) S. sp. (240833)
Tithonian149.2 - 143.1Russian Federation (Siberia) S. grandis, S. michailovi (58785)
Tithonian149.2 - 143.1Antarctica S. sp. (76465 76466)