PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Euaspidoceras freii

Cephalopoda - Ammonitida - Aspidoceratidae

Taxonomy

Euaspidoceras (Arcaspidoceras) freii was named by Jeannet (1951). It is a 3D body fossil. Its type locality is Herznach mine, bed F.2 (Frei collection), which is in an Oxfordian carbonate limestone in Switzerland.

It was recombined as Euaspidoceras freii by Bonnot and Gygi (1998).

Sister species lacking formal opinion data

Aspidoceras vettersianum, E. acanthodes, E. blakei, E. catena, E. faustum, E. fontannesi, E. perisphinctoides, E. simile, E. sparsispinum, E. striatocostatum, E. simile, E. subdistructum

Synonyms

Euaspidoceras hirsutiformis was named by Jeannet (1951).

It was synonymized subjectively with Euaspidoceras freii by Bonnot and Gygi (1998).
Euaspidoceras hantkei was named by Jeannet (1951). It is a 3D body fossil. Its type locality is Herznach mine, bed F.2, which is in an Oxfordian carbonate limestone in Switzerland.

It was synonymized subjectively with Euaspidoceras freii by Bonnot and Gygi (1998).
Euaspidoceras elegans was named by Jeannet (1951). It is a 3D body fossil. Its type locality is Herznach mine, bed F.1, which is in an Oxfordian carbonate marl in Switzerland.

It was synonymized subjectively with Euaspidoceras freii by Bonnot and Gygi (1998).
Euaspidoceras bidentiformis was named by Jeannet (1951).

It was synonymized subjectively with Euaspidoceras freii by Bonnot and Gygi (1998).
Euaspidoceras (Arcaspidoceras) frickense was named by Jeannet (1951). It is a 3D body fossil. Its type locality is Herznach mine, bed F.1, which is in an Oxfordian carbonate marl in Switzerland.

It was synonymized subjectively with Euaspidoceras freii by Bonnot and Gygi (1998).
Euaspidoceras (Arcaspidoceras) spathi was named by Jeannet (1951). It is a 3D body fossil. Its type locality is Herznach mine, bed F.2 (Frei collection), which is in an Oxfordian carbonate limestone in Switzerland.

It was synonymized subjectively with Euaspidoceras freii by Bonnot and Gygi (1998).

Synonymy list

Year	Name and author
1951	Euaspidoceras hirsutiformis Jeannet p. 214 figs. Pl 101, figs 2,3; text-fig 501
1951	Euaspidoceras hantkei Jeannet p. 215 figs. Pl 102, figs 1-3; text-figs 504, 505
1951	Euaspidoceras elegans Jeannet p. 216 figs. Pl 103, fig 4; text-figs 506, 507
1951	Euaspidoceras bidentiformis Jeannet p. 222 figs. Pl 102, fig 4; pl 105, fig 1; text-figs 519-521
1951	Euaspidoceras (Arcaspidoceras) freii Jeannet p. 225 figs. Pl 92, fig 3; pl 105, fig 3; text-figs 526-527
1951	Euaspidoceras (Arcaspidoceras) frickense Jeannet p. 225 figs. Pl 105, fig 2; text-figs 524, 525
1951	Euaspidoceras (Arcaspidoceras) spathi Jeannet p. 226 figs. Pl 105, fig 4; text-fig 528
1998	Euaspidoceras freii Bonnot and Gygi p. 496 figs. Pl 1, figs 1-8

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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
suborder	Ammonitina	Hyatt 1889
superfamily	Aspidoceratoidea	Zittel 1895
family	Aspidoceratidae	Zittel 1895
subfamily	Euaspidoceratinae	Zittel 1895
genus	Euaspidoceras
species	freii	()

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.

†Euaspidoceras freii Jeannet 1951

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Invalid names: Euaspidoceras (Arcaspidoceras) frickense Jeannet 1951 [synonym], Euaspidoceras (Arcaspidoceras) spathi Jeannet 1951 [synonym], Euaspidoceras bidentiformis Jeannet 1951 [synonym], Euaspidoceras elegans Jeannet 1951 [synonym], Euaspidoceras hantkei Jeannet 1951 [synonym], Euaspidoceras hirsutiformis Jeannet 1951 [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	36	23.3	12.0	83.0	22.1	13.8
shell diameter	36	65.3	30.0	285.0	64.0	46.2
shell inflation	36	25.5	10.5	138.0	23.0	22.4

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: Early/Lower Oxfordian or 161.20000 to 155.70000 Ma

Collections (14 total)

Time interval	Ma	Country or state	Original ID and collection number
Early/Lower Oxfordian	161.2 - 155.7	Switzerland	Euaspidoceras arkelli (171687) Euaspidoceras bidentiformis, Euaspidoceras freii, Euaspidoceras spathi, Euaspidoceras perarmatum, Euaspidoceras arkelli, Euaspidoceras biplicatum, Euaspidoceras nikitini (type locality: 171586) Euaspidoceras elegans, Euaspidoceras frickense, Euaspidoceras freii, Euaspidoceras perarmatum, Euaspidoceras nikitini (171562) Euaspidoceras elegans, Euaspidoceras spathi, Euaspidoceras perarmatum (171491) Euaspidoceras freii (171778 190017 190018 190019 190020) Euaspidoceras freii, Euaspidoceras perarmatum, Euaspidoceras biarmatum, Euaspidoceras waageni (171660) Euaspidoceras hirsutiformis, Euaspidoceras freii, Euaspidoceras spathi, Euaspidoceras perarmatum, Euaspidoceras arkelli, Euaspidoceras biarmatum, Euaspidoceras nikitini (171561) Euaspidoceras hirsutiformis, Euaspidoceras hantkei, Euaspidoceras bidentiformis, Euaspidoceras perarmatum, Euaspidoceras biarmatum, Euaspidoceras nikitini (171559) Euaspidoceras perarmatum (171775) Euaspidoceras perarmatum, Euaspidoceras nikitini (171684)