PBDB Taxon

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

Dactylioceras athleticum

Cephalopoda - Ammonoida - Dactylioceratidae

Taxonomy

Ammonites athleticus was named by Simpson (1855).

It was recombined as Dactylioceras athleticum by Krumbeck (1923), Howarth (1962).

Sister species lacking formal opinion data

D. aequistriatum, D. alpestre, D. anguinum, D. annulatum, D. comptum, D. hoelderi, D. semicelatum, D. tenuicostatum, D. verme, D. aequistriatum, D. clevelandicum, D. ernsti, D. helianthoides, D. hoelderi, D. semicelatum, D. tenuicostatum

Synonymy list

Year	Name and author
1855	Ammonites athleticus Simpson
1923	Dactylioceras athleticum Krumbeck
1962	Dactylioceras athleticum Howarth p. 409

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Cephalopoda	Cuvier 1797
subclass	Coleoidea	Bather 1888

Rank	Name	Author
order	Ammonoida	(Haeckel 1866)
order	Ammonitida	Haeckel 1866
suborder	Ammonitina	Hyatt 1889
superfamily	Eoderoceratoidea	(Spath 1929)
family	Dactylioceratidae	Hyatt 1867
subfamily	Dactylioceratinae	Hyatt 1867
genus	Dactylioceras	Hyatt 1867
species	athleticum	(Simpson 1855)

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.

†Dactylioceras athleticum Simpson 1855

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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 2004, Kiessling 2003

Age range: base of the Early/Lower Toarcian to the top of the Middle Toarcian or 184.20000 to 180.40000 Ma

Collections (20 total)

Time interval	Ma	Country or state	Original ID and collection number
Pliensbachian - Toarcian	192.9 - 174.7	Indonesia (Timor)	Dactylioceras athleticum (205676)
Early/Lower Toarcian	184.2 - 182.9	Germany (Bavaria)	Dactylioceras athleticum (51267)
Early/Lower Toarcian - Middle Toarcian	184.2 - 180.4	Canada (British Columbia)	Dactylioceras athleticum (53586 55769 55777)
Toarcian	184.2 - 174.7	Svalbard and Jan Mayen	Dactylioceras athleticum (212942)
Bifrons	182.9 - 174.7	United Kingdom (Yorkshire)	Dactylioceras athleticum (147873 147875 147876 147877 147902 147903)
Bifrons	182.9 - 174.7	France (Deux-Sevrès)	Dactylioceras athleticum (140865 140866)
Bifrons	182.9 - 174.7	Germany	Dactylioceras athleticum (228514 228516)
Bifrons	182.9 - 174.7	France	Dactylioceras athleticum (148332)
Planulata	181.3 - 179.3	Canada (Alberta)	Dactylioceras athleticum (198527 198529 198530)