PBDB Taxon

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

Orthoceras bisignatum

Cephalopoda - Orthocerida - Orthoceratoidea

Taxonomy

Orthoceras bisignatum was named by Barrande (1877). It is not extant.

It was recombined as Isorthoceras bisignatum by Kröger et al. (2011).

Sister species lacking formal opinion data

Michelinoceras bullatum, Michelinoceras ibex, Michelinoceras imbricatum, O. abruptum, O. agassizi, O. alcyon, O. alienum, O. allumettense, O. alticola, O. amoenum, O. anguliferas, O. annulatum, O. antenor, O. arcitenens, O. arcuoliratum, O. argus, O. aristides, O. bassleri, O. beltrami, O. bifoveatum, O. bokkeveldense, O. bokkeveldensis, O. bonum, O. carnosum, O. cavum, O. centrale, O. chemungense, O. clavatum, O. consolans, O. constrictum, O. costellatum, O. decipiens, O. deletum, O. dimidiatum, O. discrepans, O. dulce, O. equisetum, O. expectans, O. explorator, O. fractum, O. fusiforme, O. gamkaense, O. gaspense, O. gregarium, O. importunum, O. indianense, O. kindlei, O. laevigatum, O. lamellosum, O. lativentrum, O. limulurus, O. luxum, O. mackenzicum, O. martinianum, O. minimum, O. minnesotense, O. morresi, O. multicameratum, O. multilobiatum, O. percense, O. pictum, O. planicanaliculatum, O. potens, O. proprinquum, O. rectiannulatum, O. regulara, O. regulare, O. renovatum, O. rex, O. richteri, O. sacrum, O. salutatum, O. sayi, O. scabridum, O. sollasi, O. speciosum, O. tenuilineatum, O. tenuistriatum, O. teres, O. tiro, O. trecentesium, O. trusitum, O. virgulatum, O. winnipegense, O. woodwardi, O. wrighti, O. tyrrelli, Spyroceras anellus

Synonymy list

Year	Name and author
1877	Orthoceras bisignatum Barrande
2011	Isorthoceras bisignatum Kröger et al.

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

Rank	Name	Author
class	Cephalopoda	Cuvier 1797
family	Orthoceratoidea	()
order	Orthocerida	Kuhn 1940
family	Orthoceratidae
genus	Orthoceras	Breynius 1832
species	bisignatum	Barrande 1877

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.

†Orthoceras bisignatum Barrande 1877

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Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragoniteo

Environment:

marineo

Locomotion:

actively mobileo

Life habit:

nektonico

Diet:

carnivoreo

Vision:

well-developedc

Created:

2005-10-06 14:35:22

Modified:

2009-04-13 11:56:59

Source: o = order, c = class

References: Kiessling 2004, Aberhan et al. 2004

Age range: base of the Vinice to the top of the Bohdalec or 459.30000 to 445.20000 Ma

Collections (4 total)

Time interval	Ma	Country or state	Original ID and collection number
Bohdalec	459.3 - 445.2	Czechia	Orthoceras bisignatum (3874 238012)
Vinice - Late/Upper Ordovician	459.3 - 443.1	Czechia	Orthoceras bisignatum (3863)
Zahorany - Late/Upper Ordovician	459.3 - 443.1	Czechia	Orthoceras bisignatum (3865)