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Ambites atavus

Cephalopoda - Ceratitida - Gyronitidae

Taxonomy
Prionolobus atavus was named by Waagen (1895). It is a 3D body fossil. Its type locality is Virgal, Lower Ceratite Limestone, Salt Range, which is in a Dienerian marine limestone in the Lower Ceratite Limestone Formation of Pakistan.

It was recombined as Ambites atavus by Ware and Bucher (2018) and Ware and Bucher (2018).

Synonyms
Synonymy list
YearName and author
1895Gyronites evolvens Waagen p. 295 figs. Pl 35, fig 7
1895Prionolobus atavus Waagen p. 309 figs. Pl 34, fig 4; pl 35, fig 4
1934Gyronites evolvens Spath
1934Gyronites planissimus Spath
1934Prionolobus atavus Spath
1988Gyronites evolvens Xu p. 446 figs. Pl 2, figs 2,8; text-fig 14
2010Mudiceras planissimum Brühwiler et al. p. 732 fig. 13
2012Mudiceras planissimum Brühwiler and Bucher p. 47 figs. 28Q-U
2018Ambites atavus Ware and Bucher

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classCephalopodaCuvier 1797
subclassAmmonoidea()
orderCeratitidaHyatt 1884
superfamilyMeekocerataceaeWaagen 1895
familyGyronitidaeWaagen 1895
genusAmbites
speciesatavus()

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.

†Ambites atavus Waagen 1895
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Invalid names: Gyronites evolvens Waagen 1895 [synonym], Gyronites planissimus Spath 1934 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height916.88.1030.916.46.43
shell diameter940.220.768.737.215.3
shell inflation912.57.4023.712.76.13

Composition: aragoniteo
Environment: marinec
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-01-28 02:33:06
Modified: 2005-10-06 16:36:47
Source: o = order, c = class
References: Kiessling 2003, Kiessling 2004

Age range: Smithian or 251.30000 to 247.20000 Ma

Collections (21 total)


Time interval Ma Country or state Original ID and collection number
Smithian251.3 - 247.2Pakistan Mudiceras planissimum (139082)
Smithian251.3 - 247.2India Mudiceras planissimum (104976 104978)
Smithian251.3 - 247.2Russian Federation (Primorye) Gyronites planissimus (47205 47232)
Dienerian250.5 - 251.2China (Xizang) Ambites atavus (229732)
Dienerian250.5 - 251.2India (Himachal Pradesh) Ambites atavus (217584 217611 217614)
Dienerian250.5 - 251.2Pakistan (Punjab) Ambites atavus (217483 217496 217503 217510)
Dienerian250.5 - 251.2Pakistan Gyronites evolvens (143844) Gyronites planissimus (215026) Prionolobus atavus (143810 type locality: 143819 143841)
Dienerian250.5 - 251.2China (Hubei) Gyronites evolvens (95717)
Dienerian250.5 - 251.2China (Guangxi) Gyronites evolvens (44001) Prionolobus atavus (104967)