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Pseudogrammoceras differens

Cephalopoda - Ammonitida - Hildoceratidae

Taxonomy
Harpoceras differens was named by Ernst (1923) [Harpoceras fallaciosum var. differens]. It is not extant.

It was recombined as Pseudogrammoceras differens by Gabilly (1976).

Sister species lacking formal opinion data
P. pseudostruckmanni, P. saemanni

Synonymy list
YearName and author
1923Harpoceras differens Ernst
1976Pseudogrammoceras differens Gabilly p. 149 figs. Pl 29, figs 1,2; text-fig 95

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAmmonitinaHyatt 1889
superfamilyHildoceratoidea(Hyatt 1867)
familyHildoceratidaeHyatt 1867
subfamilyGrammoceratinaeBuckman 1904
genusPseudogrammoceras
speciesdifferens(Ernst 1923)

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
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height1237.018.363.741.514.2
shell diameter12105.246.4201.0115.248.6
shell inflation1241.216.593.544.524.2

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: Late/Upper Toarcian or 180.10000 to 175.60000 Ma

Collections (17 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Toarcian180.1 - 175.6Hungary Pseudogrammoceras differens (108575 108595)
Thouarsense180.1 - 175.6France (Deux-Sèvres) Pseudogrammoceras differens (149030 149031 149032 149033)
Thouarsense180.1 - 175.6Hungary Pseudogrammoceras differens (108573 147228 147230)
Thouarsense180.1 - 175.6Spain Pseudogrammoceras differens (146982 146984 146985 146986 146987 147086)
Thouarsense180.1 - 175.6France (Deux-Sevrès) Pseudogrammoceras differens (140873 147170)