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Proxestops silberlingii

Reptilia - Anguidae

Taxonomy
Harpagosaurus silberlingii was named by Gilmore (1938). Its type specimen is USNM 13877, a maxilla (left maxilla with teeth), and it is a 3D body fossil. Its type locality is Silberling Quarry, which is in a Torrejonian terrestrial horizon in the "Fort Union" (= Lebo) Formation of Montana.

It was recombined as Paraprionosaurus silberlingii by Estes (1983); it was recombined as Proxestops silberlingii by Sullivan (1991).

Synonyms
  • Proxestops gastrodon was named by Bartels (1988).

    It was synonymized subjectively with Proxestops silberlingii by Sullivan (1991).
  • Peltosaurus jepseni was named by Gilmore (1942). Its type specimen is Princeton Mus. no. 14565, a maxilla (incomplete right maxillary bearing 9 teeth, posterior portion of the parietal, and one dermal scute), and it is a 3D body fossil. Its type locality is Princeton Quarry, which is in a Tiffanian terrestrial horizon in the Fort Union Formation of Wyoming.

    It was synonymized subjectively with Pancelosaurus piger by Meszoely (1970); it was recombined as Proxestops jepseni by Gauthier (1982), Bryant (1989); it was synonymized subjectively with Proxestops silberlingii by Sullivan (1991).
  • Proxestops jepsoni was named by Gauthier (1982) [PU 14565, originally named Peltosaurus jepsoni by Gilmore, 1942, p. 161, fig. 4.]. Its type specimen is PU 14565 and is a 3D body fossil.

    It was synonymized subjectively with Proxestops silberlingii by Sullivan (1991).
Synonymy list
YearName and author
1938Harpagosaurus silberlingii Gilmore p. 24 fig. 8
1942Peltosaurus jepseni Gilmore p. 161
1982Proxestops jepseni Gauthier
1982Proxestops jepsoni Gauthier p. 21 figs. 15, 16, 18
1983Paraprionosaurus silberlingii Estes
1988Proxestops gastrodon Bartels
1989Proxestops jepseni Bryant p. 47
1991Proxestops silberlingii Sullivan p. 297

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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
—Squamata()
—Anguimorpha(Fürbringer 1900)
—Anguiformes(Bonaparte 1831)
superfamilyAnguioideaFitzinger 1826
familyAnguidaeGray 1825
subfamilyGlyptosaurinaeMarsh 1872
genusProxestopsGauthier 1982
speciessilberlingii()

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.

†Proxestops silberlingii Gilmore 1938
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Invalid names: Proxestops gastrodon Bartels 1988 [synonym], Proxestops jepseni Gilmore 1942 [synonym], Proxestops jepsoni Gauthier 1982 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubf
Locomotion: actively mobilec
Life habit: ground dwellingsubf
Diet: insectivoref
Diet 2: carnivoref
Created: 2005-09-23 14:40:23
Modified: 2005-09-23 16:40:23
Source: subf = subfamily, f = family, c = class, subp = subphylum
References: Carroll 1988, Behler and King 1979, Head 2005, Hendy et al. 2009

Age range: base of the Puercan to the top of the Tiffanian or 66.00000 to 56.20000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Puercan66.0 - 63.8USA (New Mexico) Proxestops jepseni (14760 74555)
Puercan66.0 - 63.8USA (Utah) Proxestops jepseni (14670)
Torrejonian63.8 - 60.9USA (Utah) Proxestops jepseni (14830)
Torrejonian63.8 - 60.9USA (New Mexico) Proxestops jepseni (14865)
Torrejonian63.8 - 60.9USA (Montana) Proxestops silberlingii (14906 type locality: 14913)
Torrejonian63.8 - 60.9USA (Wyoming) Peltosaurus jepseni (14912)
Tiffanian60.9 - 56.2USA (Wyoming) Peltosaurus jepseni (15049)