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Porpoceras

Cephalopoda - Ammonitida - Dactylioceratidae

Taxonomy
Porpoceras was named as a genus. It is not extant.

It was reranked as Coeloceras (Porpoceras) by Monestier (1931).

It was assigned to Coeloceras by Monestier (1931); to Ammonoidea by Sepkoski (2002); and to Dactylioceratinae by Howarth (2013), Benzaggagh et al. (2022).

Synonyms
Synonymy list
YearName and author
1931Coeloceras (Porpoceras) Monestier
1971Platystrophites Levi-Setti and Pinna
1971Telodactylites Pinna and Levi-Setti
2002Porpoceras Sepkoski
2008Telodactylites Géczy et al.
2013Porpoceras Howarth p. 66
2022Porpoceras Benzaggagh et al. p. 9

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitidaHaeckel 1866
suborderAmmonitinaHyatt 1889
superfamilyEoderoceratoidea(Spath 1929)
familyDactylioceratidaeHyatt 1867
subfamilyDactylioceratinaeHyatt 1867
genusPorpoceras

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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†Porpoceras andraei Simpson 1843
†Porpoceras tenellissimum Monestier 1931
†Porpoceras vortex Simpson 1855
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Invalid names: Porpoceras verticosum Buckman 1914 [synonym]
†Porpoceras vorticellum Simpson 1855
Invalid names: Platystrophites Levi-Setti and Pinna 1971 [synonym], Telodactylites Pinna and Levi-Setti 1971 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
diameter190.0----
shell height76.555.009.006.201.64
shell diameter722.316.726.524.03.83
shell inflation711.17.8013.511.81.88

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 Falciferum to the top of the Middle Toarcian or 184.20000 to 180.40000 Ma

Collections (58 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Toarcian184.2 - 182.9Spain (Granda) P. vortex (201104)
Falciferum184.2 - 182.9France (Deux-Sevrès) P. sp. (140862)
Toarcian184.2 - 174.7Morocco P. gigas (153943)
Toarcian184.2 - 174.7France P. crassicostatum (210831 210832) P. pseudodesplacei (210793 210814) P. sp. (210816) P. sp., P. tenellissimum (210807) P. tenellissimum (210813)
Middle Toarcian182.9 - 180.4Spain (Granda) P. vortex (201112)
Middle Toarcian182.9 - 180.4Spain (Murcia) Platystrophites latus (201450 201453)
Bifrons182.9 - 174.7Hungary P. vorticellum (108067) Telodactylites renzi (108459 108464)
Bifrons182.9 - 174.7Italy Telodactylites sp. (147041 147042)
Bifrons182.9 - 174.7France P. crassicostatum (161646 161656 170431) P. desplacei (148791) P. planiventer (170434 170449) P. pseudodesplacei (161654) P. pseudodesplacei, P. tenellissimum, P. crassicostatum (170432) P. sp. (148789) P. spp. (161649 161650 161655 161659) P. verticosum, P. vortex (170474) P. vorticellum (148793 161645 161652)
Bifrons182.9 - 174.7Spain P. desplaei, P. vortex (146934) P. sp. (126484 169672 169673) P. vortex (146938 169669)
Bifrons182.9 - 174.7Bulgaria P. vortex (150903)
Bifrons182.9 - 174.7Morocco P. vortex (228349 228352)
Bifrons182.9 - 174.7United Kingdom (Yorkshire) P. verticosum, P. vortex, P. vorticellum (147917)
Bifrons182.9 - 174.7France (Deux-Sevrès) P. verticosum, P. vortex (140869 147160)
Middle Toarcian - Late/Upper Toarcian182.9 - 174.7Morocco (Taza-Al Hoceima-Taounate) Telodactylites eucosmus (234054)
Variabilis182.9 - 174.7Hungary P. sp., P. andraei, P. vortex (108097 108098) P. verticosum (108065 108469) P. vortex (108043 108044 108064)
Variabilis182.9 - 174.7France P. eucosmum (170446) P. sp. (148797 148802)