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Tragodesmoceras ashlandicum

Cephalopoda - Ammonitida - Muniericeratidae

Taxonomy
Desmoceras ashlandicum was named by Anderson (1902). Its type specimen is CAS 446.01, a shell, and it is a 3D body fossil. Its type locality is CAS loc. 446, Ashland, which is in a Turonian marine siliciclastic in Oregon.

It was recombined as Pachydiscus ashlandicus by Anderson (1958); it was recombined as Tragodesmoceras ashlandicum by Matsumoto (1959) and Haggart et al. (2005).

Synonyms
Synonymy list
YearName and author
1902Desmoceras ashlandicum Anderson p. 100 figs. Pl 4, figs 107, 109
1958Pachydiscus ashlandicus Anderson p. 221 figs. Pl 27, figs 3,3a,4,4a
1958Pachydiscus oregonensis Anderson p. 221 figs. Pl 27, figs 2,2a
1959Tragodesmoceras ashlandicum Matsumoto pp. 25 - 26 figs. Pl.5，fig.1a, b; Text-figs. 8-10
2005Tragodesmoceras ashlandicum Haggart et al. figs. 6.15-6.17

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAmmonitinaHyatt 1889
superfamilyDesmoceratoidea(Zittel 1895)
familyMuniericeratidae
genusTragodesmocerasSpath 1922
speciesashlandicum()

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.

†Tragodesmoceras ashlandicum Anderson 1902
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Invalid names: Pachydiscus oregonensis Anderson 1958 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height238.431.546.739.110.7
shell diameter288.477.0101.489.217.3
shell inflation224.523.026.024.52.12

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 Late/Upper Turonian to the top of the Turonian or 93.50000 to 89.80000 Ma

Collections (15 total)


Time interval Ma Country or state Original ID and collection number
Turonian93.9 - 89.8USA (California) Pachydiscus ashlandicus (44212) Tragodesmoceras ashlandicum (62347 86785 215755 220298 222094)
Turonian93.9 - 89.8USA (Oregon) Desmoceras ashlandicum (type locality: 158093) Pachydiscus ashlandicus, Pachydiscus oregonensis (158110)
Early/Lower Turonian93.5 - 89.3Canada (British Columbia) Tragodesmoceras ashlandicum (210514 210515 210516 210518 210522 210523)
Late/Upper Turonian93.5 - 89.3USA (Oregon) Pachydiscus oregonensis, Tragodesmoceras ashlandicum (86813)