PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Baculites asper

Cephalopoda - Ammonitida - Baculitidae

Taxonomy

Baculites asper was named by Morton (1830) [DISTRIBUTION: Campanian; Western Interior.]. It is not a trace fossil.

Sister species lacking formal opinion data

B. alavensis, B. aquilaensis, B. calamus, B. cazadorianus, B. compressus, B. corrugatus, B. kegeli, B. larsoni, B. saghalinensis, B. sanctae-crucis, B. subanceps, B. sulcatus, B. tippahensis, B. vanhoepeni

Synonymy list

Year	Name and author
1830	Baculites asper Morton pp. 161-162
1937	Baculites asper Russell and Landes p. 168
1955	Baculites asper Reyment p. 15 figs. Pl 1, figs 5a,b; text-fig 2a

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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	Ancyloceratina	Wiedmann 1966
superfamily	Turrilitoidea	(Gill 1871)
family	Baculitidae	Gill 1871
genus	Baculites	Lamarck 1799
species	asper	Morton 1830

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.

†Baculites asper Morton 1830

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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 2003, Kiessling 2004

Age range: base of the Middle Coniacian to the top of the Maastrichtian or 89.80000 to 66.00000 Ma

Collections (30 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Coniacian	89.8 - 85.7	USA (Montana)	Baculites asper (89500)
Late/Upper Coniacian	89.8 - 85.7	USA (New Mexico)	Baculites asper (82248)
Middle Coniacian	89.8 - 85.7	USA (Wyoming)	Baculites asper (87758 87760 87762 87765 87772 87773 87785)
Middle Coniacian	89.8 - 85.7	Canada (Alberta)	Baculites asper (87509 87510 87511 87512 87513 87514 87520)
Middle Coniacian	89.8 - 85.7	USA (Colorado)	Baculites asper (87851)
Coniacian - Santonian	89.8 - 83.6	Canada (Alberta)	Baculites asper (87433 87569)
Early/Lower Santonian	85.7 - 83.6	USA (Colorado)	Baculites asper (87852 87854)
Late/Upper Santonian	85.7 - 83.6	USA (Alabama)	Baculites asper (239757 239865)
Middle Santonian	85.7 - 83.6	Canada (Alberta)	Baculites asper (87515)
Middle Santonian	85.7 - 83.6	USA (New Mexico)	Baculites asper (87848)
Santonian	85.7 - 83.6	USA (Alabama)	Baculites asper (239744)
Early/Lower Campanian	83.6 - 72.2	USA (Alabama)	Baculites asper (171351 239503 239753)
Maastrichtian	72.2 - 66.0	Nigeria	Baculites asper (82734)