PBDB Taxon

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

Peltoceras trifidum

Cephalopoda - Ammonitida - Aspidoceratidae

Taxonomy

Ammonites athleta trifidus was named by Quenstedt (1887).

It was recombined as Peltoceras trifidum by Jeannet (1951).

Sister species lacking formal opinion data

P. athletoides, P. gerberi, P. kumagense, P. kumagunense, P. ponderosum, P. pseudotorosum, P. retrospinatum, P. russiense, P. schroederi, P. ssp., P. williamsoni, P. pachygaster, P. ponderosum, P. solidum, P. williamsoni

Synonymy list

Year	Name and author
1887	Ammonites athleta trifidus Quenstedt
1951	Peltoceras trifidum Jeannet p. 167 figs. Pl 72, fig 4; pl 73, figs 1-4; text-figs 394-396

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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	Ammonitida	Haeckel 1866
suborder	Ammonitina	Hyatt 1889
superfamily	Aspidoceratoidea	Zittel 1895
family	Aspidoceratidae	Zittel 1895
subfamily	Peltoceratinae	Spath 1924
genus	Peltoceras
species	trifidum	(Quenstedt 1887)

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.

†Peltoceras trifidum Quenstedt 1887

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Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	5	15.4	10.5	23.0	15.5	4.52
shell diameter	5	53.1	38.0	75.0	53.5	13.4
shell inflation	5	25.1	19.0	34.0	25.0	5.45

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 Middle Callovian to the top of the Callovian or 165.30000 to 161.50000 Ma

Collections (12 total)

Time interval	Ma	Country or state	Original ID and collection number
Callovian	165.3 - 161.5	Saudi Arabia	Peltoceras trifidum (47882 47911)
Late/Upper Callovian	165.3 - 161.5	France	Peltoceras trifidum (60619)
Late/Upper Callovian	165.3 - 161.5	Switzerland	Peltoceras trifidum (171552 171565 171574 171630 171759 171762 171922)
Late/Upper Callovian	165.3 - 161.5	Germany	Peltoceras trifidum (62279)
Middle Callovian - Late/Upper Callovian	165.3 - 161.5	Switzerland	Peltoceras trifidum (171585)