PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Phyllopachyceras forbesianum

Cephalopoda - Phylloceratida - Phylloceratidae

Taxonomy

Ammonites forbesianum was named by d'Orbigny (1850) [DISTRIBUTION: Maastrichtian; Europe.]. It is not a trace fossil.

It was recombined as Phylloceras forbesianum by Marshall (1926); it was recombined as Partschiceras (Phyllopachyceras) forbesianum by Henderson and McNamara (1985); it was recombined as Partschiceras forbesianum by Kennedy and Summesberger (1986); it was recombined as Phyllopachyceras forbesianum by Spath (1953), Jones (1963), Henderson (1970), Kennedy and Henderson (1992), Ward and Kennedy (1993), Salazar et al. (2010), Ifrim et al. (2015).

Sister species lacking formal opinion data

P. chitinanum, P. shastalense

Synonyms

Phylloceras minimum was named by Marshall (1926).

It was synonymized subjectively with Phyllopachyceras forbesianum by Henderson (1970), Kennedy and Henderson (1992).
Schluteria rarawa was named by Marshall (1926).

It was synonymized subjectively with Phyllopachyceras forbesianum by Henderson (1970), Kennedy and Henderson (1992).
Phyllopachyceras inflatum was named by Shimizu (1935).

It was synonymized subjectively with Phyllopachyceras forbesianum by Henderson (1970), Kennedy and Henderson (1992).
Phyllopachyceras marshalli was named by Collignon (1937).

It was synonymized subjectively with Phyllopachyceras forbesianum by Kennedy and Henderson (1992).
Phyllopachyceras zelandicum was named by Collignon (1956).

It was synonymized subjectively with Phyllopachyceras forbesianum by Henderson (1970), Kennedy and Henderson (1992).
Phylloceras bistriatum was named by Marshall (1926).

It was synonymized subjectively with Phyllopachyceras forbesianum by Henderson (1970).

Synonymy list

Year	Name and author
1850	Ammonites forbesianum d'Orbigny p. 213
1926	Phylloceras forbesianum Marshall p. 136 figs. Pl 19, fig 6; pl 27, figs 3,4
1926	Phylloceras minimum Marshall p. 137 figs. Pl 19, fig 8; pl 26, figs 5,6
1926	Phylloceras bistriatum Marshall p. 138 figs. Pl 19, fig 5; pl 27, figs 1,2
1926	Schluteria rarawa Marshall p. 192 figs. Pl 19, fig 10; pl 32, figs 7,8
1935	Phyllopachyceras inflatum Shimizu
1937	Phyllopachyceras marshalli Collignon
1953	Phyllopachyceras forbesianum Spath p. 6 figs. Pl 1, figs 3-5
1956	Phyllopachyceras zelandicum Collignon p. 31
1963	Phyllopachyceras forbesianum Jones p. 24
1970	Phyllopachyceras forbesianum Henderson p. 7 figs. Pl 1, figs 2,4,5
1985	Partschiceras (Phyllopachyceras) forbesianum Henderson and McNamara p. 43 figs. Pl 1, figs 4-6; text-fig 3f
1986	Partschiceras forbesianum Kennedy and Summesberger p. 184
1992	Phyllopachyceras forbesianum Kennedy and Henderson p. 394 figs. Pl 2, figs 1-12; text-fig 3C
1993	Phyllopachyceras forbesianum Ward and Kennedy p. 17 figs. 17.14,17.17, 18.5-18.7
2010	Phyllopachyceras forbesianum Salazar et al. p. 190 figs. 5k-l
2015	Phyllopachyceras forbesianum Ifrim et al. p. 233 figs. 4I-L, 5A

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Cephalopoda	Cuvier 1797

Rank	Name	Author
subclass	Ammonoidea	()
order	Phylloceratida	(Zittel 1884)
superfamily	Phylloceratoidea	(Zittel 1884)
family	Phylloceratidae	Zittel 1884
subfamily	Phylloceratinae	Zittel 1884
genus	Phyllopachyceras	Spath 1925
species	forbesianum	(d'Orbigny 1850)

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.

†Phyllopachyceras forbesianum d'Orbigny 1850

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Invalid names: Phylloceras bistriatum Marshall 1926 [synonym], Phylloceras minimum Marshall 1926 [synonym], Phyllopachyceras inflatum Shimizu 1935 [synonym], Phyllopachyceras marshalli Collignon 1937 [synonym], Phyllopachyceras zelandicum Collignon 1956 [synonym], Schluteria rarawa Marshall 1926 [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	12	19.9	4.50	43.0	24.5	10.4
shell diameter	12	35.1	9.50	76.0	40.0	17.5
shell inflation	12	1.06	0.200	3.00	1.25	0.889

Composition:

aragoniteo

Environment:

marinec

Locomotion:

actively mobileo

Life habit:

nektonico

Diet:

carnivoreo

Vision:

well-developedc

Created:

2009-09-27 10:11:29

Modified:

2009-09-27 12:11:29

Source: o = order, c = class

References: Kiessling 2004, Kiessling 2003, Hendy et al. 2009

Age range: base of the Santonian to the top of the Late/Upper Maastrichtian or 85.70000 to 66.00000 Ma

Collections (32 total)

Time interval	Ma	Country or state	Original ID and collection number
Piripauan	86.1 - 83.6	New Zealand (Northland)	Phyllopachyceras forbesianum (233887)
Piripauan - Haumurian	86.1 - 66.0	New Zealand (Auckland)	Phyllopachyceras forbesianum (233885)
Santonian	85.7 - 83.6	Russian Federation (Sakhalin)	Phyllopachyceras forbesianum (64587 64588)
Campanian	83.6 - 72.2	Antarctica	Phyllopachyceras forbesianum (166164 166165)
Campanian	83.6 - 72.2	Russian Federation (Sakhalin)	Phyllopachyceras forbesianum (64590)
Late/Upper Campanian	83.6 - 72.2	Mexico (Coahuila)	Phyllopachyceras forbesianum (174742)
Haumurian	83.6 - 66.0	New Zealand (North Auckland)	Phyllopachyceras forbesianum (233889)
Late/Upper Campanian - Early/Lower Maastrichtian	83.6 - 66.0	Canada (British Columbia)	Phyllopachyceras forbesianum (235453)
Late/Upper Campanian - Maastrichtian	83.6 - 66.0	USA (Alaska)	Phyllopachyceras forbesianum (88816)
Early/Lower Maastrichtian	72.2 - 66.0	USA (California)	Phyllopachyceras forbesianum (225918)
Early/Lower Maastrichtian	72.2 - 66.0	Austria	Partschiceras forbesianum (83619)
Late/Upper Maastrichtian	72.2 - 66.0	Chile	Phyllopachyceras forbesianum (165492)
Late/Upper Maastrichtian	72.2 - 66.0	India	Ammonites rouyanus (type locality: 41428)
Maastrichtian	72.2 - 66.0	Australia (Western Australia)	Partschiceras forbesianum (83845 83850 83852 83853 83854 83855 83856 83857 83864 157777 157781 157784 157785 157788 157789 157792) Phyllopachyceras forbesianum (82388)