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Megalytoceras

Cephalopoda - Ammonitida - Lytoceratidae

Taxonomy
Megalytoceras was named by Buckman (1905) [Sepkoski's age data: J Toar-u J Bajo]. It is not extant. It is the type genus of Megalytoceratinae.

It was assigned to Ammonoidea by Sepkoski (2002); to Phylloceratinae by Pallini et al. (2004); and to Megalytoceratinae by Hoffmann (2010), Galácz and Kassai (2012) and Whicher et al. (2023).

Synonyms
Synonymy list
YearName and author
1905Megalytoceras Buckman
1957Asapholytoceras Arkell et al. p. L196
2002Asapholytoceras Sepkoski
2002Megalytoceras Sepkoski
2002Metrolytoceras Sepkoski
2004Megalytoceras Pallini et al. p. 6
2010Megalytoceras Hoffmann p. 51
2012Megalytoceras Galácz and Kassai
2023Megalytoceras Whicher et al. p. 239

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAmmonitinaHyatt 1889
superfamilyLytoceratoidea(Neumayr 1875)
familyLytoceratidaeNeumayr 1875
subfamilyMegalytoceratinaeSpath 1927
genusMegalytocerasBuckman 1905

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. †Megalytoceras Buckman 1905
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Megalytoceras confusum Buckman 1881
Megalytoceras kasakovae Beznosov 1958
Megalytoceras metretum Buckman 1923
Megalytoceras rasile Vacek 1886
Megalytoceras rubescens Dumortier 1874
Megalytoceras trapeza Quenstedt 1886
Invalid names: Asapholytoceras [synonym], Metrolytoceras [synonym]
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 2004, Kiessling 2003

Age range: base of the Early/Lower Aalenian to the top of the Early/Lower Bajocian or 175.60000 to 168.40000 Ma

Collections (19 total)


Time interval Ma Country or state Original ID and collection number
Concavum175.6 - 171.6United Kingdom (England) M. confusum (229911 229918) M. confusum, M. metretum (229910 229919) M. confusum, M. metretum, M. trapeza (229917) M. rubescens (229924 229925) M. sp. (229926)
Early/Lower Aalenian175.6 - 171.6Spain Lytoceras rasile (71713)
Late/Upper Aalenian175.6 - 171.6Ukraine (Transcarpathian) M. sp. (197182)
Early/Lower Bajocian171.6 - 168.4Hungary M. rubescens, M. kasakovae (220223 220224 220225)
Discites171.6 - 167.7United Kingdom (England) M. confusum, M. trapeza (229916) M. metretum (229920 229921)
Laeviuscula171.6 - 167.7United Kingdom (England) M. metretum (229922)
Sauzei171.6 - 167.7United Kingdom (England) M. trapeza (229896 229923)