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Sulcusuchus

Reptilia - Plesiosauria - Polycotylidae

Synonymy list
YearName and author
1990Sulcusuchus Gasparini and Spalletti
2000Sulcusuchus Gasparini and de la Fuente p. 30
2001Sulcusuchus Gasparini et al.
2013Sulcusuchus O'Gorman and Gasparini
2015Sulcusuchus Gasparini et al.
2015Sulcusuchus O'Gorman p. 189
2016Sulcusuchus O'Gorman p. 42
2022Sulcusuchus O'Gorman

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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
orderPlesiosauriade Blainville 1835
superfamilyPlesiosauroideaWelles 1943
familyPolycotylidaeWilliston 1908
genusSulcusuchus

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.

G. †Sulcusuchus Gasparini and Spalletti 1990
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Sulcusuchus erraini Gasparini and Spalletti 1990
Diagnosis
ReferenceDiagnosis
Z. Gasparini and L. A. Spalletti 1990Crocodile with a long, narrow symphysis mandible, with straight, unfestooned edges. The symphysis is tall, with a subcircular section where the transverse diameter is slightly larger than the height, and with a convex lingual face. The alveoli, very deep, display a marked anteroposterior inclination, and the interalveolar spaces correspond to half or even less than the alveolar diameter. The teeth have a conical crown, with a circular section and finely striated enamel except on the lingual face. A wide and deep lateroventral groove runs along the external wall of the dental structure.
J. P. O'Gorman and Z. Gasparini 2013Polycotylid with comparatively narrow rostrum formed by the premaxillary and maxillary, characterized by the following autapomorphies: (1) deep and broad rostral and mandibular grooves and (2) a wide notch on the posterior margin of the pterygoids that is combined with a part of the body of the basioccipital, forming a flat plate together with the posteromedial processes of the pterygoids.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Environment: marineo
Locomotion: actively mobileo
Life habit: aquatico
Depth habitat: surfaceo
Diet: carnivoreo
Reproduction: viviparouso
Created: 2009-07-20 06:05:48
Modified: 2011-08-12 01:58:15
Source: o = order
Reference: Kiessling 2004

Age range: base of the Maastrichtian to the top of the Early/Lower Maastrichtian or 72.10000 to 66.00000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0Argentina (Río Negro) S. erraini (142118)
Maastrichtian72.1 - 66.0Argentina (Chubut) S. erraini (99438) S. sp. (231374)