PBDB Taxon

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

Tetragonites timotheanus rectangularis

Cephalopoda - Ammonitida - Tetragonitidae

Taxonomy

Tetragonites rectangularis was named by Wiedmann (1962). It is a 3D body fossil.

It was recombined as Tetragonites timotheanus rectangularis by Geyer et al. (1997).

Subtaxa

Tetragonites rectangularis alaskaensis

Sister taxa

T. rectangularis alaskaensis

Sister species lacking formal opinion data

T. obscuratus, T. obscurum

Synonymy list

Year	Name and author
1962	Tetragonites rectangularis Wiedmann p. 178 figs. pl. 14, fig. 3
1967	Tetragonites rectangularis Murphy p. 38 figs. Pl. 4, figs. 1 - 7; Pl. 5, fig. 1
1982	Tetragonites rectangularis Renz p. 34
1997	Tetragonites timotheanus rectangularis Geyer et al. p. 224 figs. 2c-d, 3c-d

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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	Tetragonitoidea	(Hyatt 1900)
family	Tetragonitidae	Hyatt 1900
genus	Tetragonites	(Kossmat 1895)
species	timotheanus	(Pictet 1847)
subspecies	rectangularis	(Wiedmann 1962)

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.

†Tetragonites timotheanus rectangularis Wiedmann 1962

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†Tetragonites rectangularis alaskaensis Murphy 1967

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Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	2	15.8	14.2	17.6	15.9	2.40
shell diameter	2	36.8	33.0	41.0	37.0	5.66
shell inflation	2	10.5	9.60	11.5	10.6	1.34

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 Albian to the top of the Cenomanian or 112.03000 to 93.90000 Ma

Collections (16 total)

Time interval	Ma	Country or state	Original ID and collection number
Albian	113.0 - 100.5	Canada (British Columbia)	Tetragonites rectangularis (87674 87676 87682 87685)
Albian	113.0 - 100.5	Egypt	Tetragonites rectangularis (176860)
Early/Lower Albian	112.03 - 109.0	Dominican Republic	Tetragonites rectangularis (65128)
Early/Lower Albian - Late/Upper Albian	112.03 - 99.6	France	Tetragonites rectangularis (58861)
Middle Albian	109.0 - 105.3	Venezuela	Tetragonites rectangularis (87946)
Late/Upper Albian	105.3 - 99.6	Madagascar (Antsiranana)	Tetragonites rectangularis (98215)
Late/Upper Albian	105.3 - 99.6	Canada (British Columbia)	Tetragonites rectangularis (87714)
Late/Upper Albian	105.3 - 99.6	Antarctica	Tetragonites rectangularis (83560)
Late/Upper Albian	105.3 - 99.6	Italy	Tetragonites rectangularis (12838)
Late/Upper Albian	105.3 - 99.6	France	Tetragonites rectangularis (56680)
Cenomanian	100.5 - 93.9	New Zealand	Tetragonites rectangularis (83439)
Early/Lower Cenomanian	99.6 - 93.5	France	Tetragonites rectangularis (13500)
Early/Lower Cenomanian - Middle Cenomanian	99.6 - 93.5	France	Tetragonites rectangularis (230858)