PBDB Taxon

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

Choffatia subbackeriae

Cephalopoda - Ammonitida - Perisphinctidae

Taxonomy

Ammonites subbackeriae was named by d'Orbigny (1850). Its type specimen is MNHN.F.R02723 and is a 3D body fossil.

It was recombined as Choffatia subbakeriae by Parent (1998); it was recombined as Choffatia subbackeriae by Zatoń (2010).

Sister species lacking formal opinion data

C. aequalis, C. cobra, C. euryptycha, C. funatus, C. homaeomorpha, C. irregularis, C. lateralis, C. lenzi, C. leptonota, C. madani, C. naia, C. recuperoi, C. sakuntala, C. subtilis, C. transitoria, C. vicenti, C. dumortieri

Synonyms

Ammonites backeriae was named by d'Orbigny (1845). It is not extant.

It was replaced with Ammonites subbackeriae by d'Orbigny (1850).

Synonymy list

Year	Name and author
1845	Ammonites backeriae d'Orbigny p. 424 figs. Pl 148
1850	Ammonites subbackeriae d'Orbigny
1998	Choffatia subbakeriae Parent p. 79 figs. 5D, 6A-D
2010	Choffatia subbackeriae Zatoń p. 147 figs. Pl 8G

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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	Perisphinctoidea	(Steinman 1890)
family	Perisphinctidae	Steinmann 1890
subfamily	Pseudoperisphinctinae	Schindewolf 1925
genus	Choffatia	()
species	subbackeriae	()

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.

†Choffatia subbackeriae d'Orbigny 1850

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Invalid names: Ammonites backeriae d'Orbigny 1845 [replaced]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	2	37.8	36.3	39.3	37.8	2.09
shell diameter	2	140.8	136.2	145.6	140.9	6.60
shell inflation	2	68.0	67.0	69.0	68.0	1.41

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 Late/Upper Bathonian to the top of the Middle Jurassic or 167.70000 to 161.50000 Ma

Collections (9 total)

Time interval	Ma	Country or state	Original ID and collection number
Middle Jurassic	174.7 - 161.5	Argentina	Choffatia subbakeriae (236386)
Bathonian	168.3 - 166.1	Argentina (Neuquén)	Choffatia subbakeriae (235861 235940)
Late/Upper Bathonian	167.7 - 164.7	Germany	Choffatia subbakeriae (62258)
Late/Upper Bathonian	167.7 - 164.7	Argentina (Neuquen)	Choffatia subbakeriae (158968 158974)
Late/Upper Bathonian	167.7 - 164.7	Poland	Choffatia subbackeriae (186769)
Early/Lower Callovian	164.7 - 161.2	Madagascar	Choffatia subbakeriae (98094 98194)