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Cyamodus rostratus

Reptilia - Placodontia - Cyamodontidae

Taxonomy
Placodus rostratus was named by Münster (1839). Its type specimen is UMO BT 748, a skull, and it is a 3D body fossil.

It was recombined as Cyamodus rostratus by Meyer (1863), Kuhn (1971), Rieppel and Hagdorn (1999) and Rieppel (2001).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1839Placodus rostratus Agassiz figs. Pl 71, figs 6-12
1839Placodus rostratus Münster p. 119 figs. Plate 15, figs 1-6
1843Placodus rostratus Agassiz p. 221
1859Placodus rostratus Owen p. 145
1861Placodus rostratus Owen p. 238
1863Cyamodus rostratus Meyer
1869Placodus rostratus Seeley p. 135
1971Cyamodus rostratus Kuhn p. 20
1999Cyamodus rostratus Rieppel and Hagdorn pp. 337-380 figs. 1-3
2001Cyamodus rostratus Rieppel pp. 76-77

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
RankNameAuthor
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
suborderSauropterygia
orderPlacodontiaCope 1871
familyCyamodontidaeNopcsa 1923
genusCyamodusvon Meyer 1863
speciesrostratus()

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.

Cyamodus rostratus Münster 1839
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Diagnosis
ReferenceDiagnosis
O. Rieppel 2001Grooves on the postorbital part of each frontal converging toward the pineal foramen; maxilla extends backward in lateral view to level well behind the posterior margin of orbit; jugal excluded from the orbital margin in lateral view; anterior palatal process of jugal entering deeply between maxilla and palatine; jugal extending backward along the anteromedial margin of the subtemporal fossa (possibly also present in Cyamodus kuhnschnyderi); tip of the posterior dorsal process of the epipterygoid exposed at the dorsomedial corner of the posttemporal fossa in occipital view; occiput with a separate, heterotrophic "epiotic" ossification located between supraoccipital and opisthotic; three palatine tooth plates, located entirely behind the two maxillary tooth plates.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubo
Locomotion: actively mobilec
Created: 2017-04-17 10:38:36
Modified: 2017-04-17 10:38:36
Source: subo = suborder, c = class, subp = subphylum
References: Carroll 1988, Hendy et al. 2009, Bush and Bambach 2015

Age range: Illyrian or 247.20000 to 242.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Illyrian247.2 - 242.0Germany (Bavaria) Cyamodus rostratus (type locality: 196168)