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Pseudhelicoceras

Cephalopoda - Ammonitida - Turrilitidae

Taxonomy
Pseudhelicoceras was named by Spath (1922) [Sepkoski's age data: K Albi-m K Albi-u]. Its type is Turrilites robertianus.

It was assigned to Ammonoidea by Sepkoski (2002); and to Turrilitidae by Matsumoto (1959), Atabekyan (1985), Henderson (1990), Mosavinia et al. (2014), Tajika et al. (2018).

Synonyms
Synonymy list
YearName and author
1922Pseudhelicoceras Spath p. 112
1953Hemiturrilites Breistroffer
1953Parahelicoceras Breistroffer
1953Subhelicoceras Breistroffer
1959Pseudohelicoceras Matsumoto p. 156
1985Pseudhelicoceras Atabekyan p. 23
1990Pseudhelicoceras Henderson p. 133
2002Pseudhelicoceras Sepkoski
2014Pseudhelicoceras Mosavinia et al. p. 84
2018Pseudhelicoceras Tajika et al. p. 72

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classCephalopodaCuvier 1797
subclassAmmonoidea()
orderAmmonitidaHaeckel 1866
suborderAncyloceratinaWiedmann 1966
superfamilyTurrilitoidea(Gill 1871)
familyTurrilitidaeGill 1871
genusPseudhelicocerasMuir-Wood 1936

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. †Pseudhelicoceras Spath 1922
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†Pseudhelicoceras carlottense Whiteaves 1884
†Pseudhelicoceras gracile Henderson 1990
†Pseudhelicoceras petersoni Anderson 1958
†Pseudhelicoceras robertianum d'Orbigny 1842
Invalid names: Hemiturrilites Breistroffer 1953 [synonym], Parahelicoceras Breistroffer 1953 [synonym], Subhelicoceras Breistroffer 1953 [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 2003, Kiessling 2004

Age range: base of the Middle Albian to the top of the Early/Lower Cenomanian or 110.10000 to 93.90000 Ma

Collections (27 total)


Time interval Ma Country or state Original ID and collection number
Albian113.2 - 100.5Canada (British Columbia) P. carlottense (87477 87478) P. sp. (87488 87490)
Early/Lower Albian - Late/Upper Albian113.2 - 100.5France P. sp. (58861)
Middle Albian110.1 - 106.3South Africa P. sp. (66006)
Middle Albian110.1 - 106.3France P. catenatum (56550)
Middle Albian - Late/Upper Albian110.1 - 100.5Switzerland P. robertianum, P. perelegans (197618)
Late/Upper Albian106.3 - 100.5Turkmenistan P. robertianum (183302 186544)
Late/Upper Albian106.3 - 100.5USA (California) P. petersoni (1784) Pseudohelicoceras petersoni (225838)
Late/Upper Albian106.3 - 100.5Australia (Northern Territory) P. sp., P. gracile (70245)
Late/Upper Albian106.3 - 100.5France P. robertianum (56526) P. sp. (56552 58359 58426) P. sp., P. robertianum (56674 56680 58126 58431)
Late/Upper Albian106.3 - 100.5Angola P. sp., P. quadrituberculatum (83840)
Late/Upper Albian106.3 - 100.5Iran P. robertianum (174590)
Cenomanian100.5 - 93.9USA (California) Turrilites petersoni (69609)
Early/Lower Cenomanian100.5 - 93.9USA (California) P. petersoni (1786) P. sp. (1789)
Early/Lower Cenomanian - Middle Cenomanian100.5 - 93.9France P. sp. (58626)