PBDB Taxon

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Glyptosaurus sylvestris

Reptilia - Anguidae

Taxonomy

Glyptosaurus sylvestris was named by Marsh (1871). Its type specimen is YPM 526 (=USNM 6523) (left frontal) and is a 3D body fossil. Its type locality is Grizzly Buttes, which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming. It is the type species of Glyptosaurus.

Synonyms

Glyptosaurus ocellatus was named by Marsh (1871). Its type specimen is YPM 523 (small patch of cranial scutes) and is a 3D body fossil.

It was synonymized subjectively with Glyptosaurus sylvestris by Gilmore (1928), Sullivan (1989).
Glyptosaurus brevidens was named by Marsh (1872). Its type specimen is YPM 521 (many parts of broken skull and jaws, several short articulated series of cervical and dorsal vertebrae and numerous skull and body osteoderm patches) and is a 3D body fossil. Its type locality is Grizzly Buttes, which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming.

It was synonymized subjectively with Glyptosaurus sylvestris by Gilmore (1928).
Glyptosaurus princeps was named by Marsh (1872). Its type specimen is YPM 524 (=USNM 16539) (considerable portion of coalesced frontals, median part of right pterygoid, fragm. portions of both rami including symph. end of left dentary, dermal scutes, ph) and is a 3D body fossil. Its type locality is Grizzly Buttes, which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming.

It was recombined as Paraglyptosaurus princeps by Sullivan (1979); it was synonymized subjectively with Glyptosaurus sylvestris by Sullivan (1989).
Glyptosaurus rugosus was named by Marsh (1872). Its type specimen is YPM 525 (posterior portions of coosified frontal bones) and is a 3D body fossil. Its type locality is Grizzly Buttes, which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming.

It was synonymized subjectively with Paraglyptosaurus princeps by Sullivan (1979); it was synonymized subjectively with Glyptosaurus sylvestris by Sullivan (1989).
Glyptosaurus donohoei was named by White (1952). Its type specimen is USNM 18316, a partial skull (badly damaged skull), and it is a 3D body fossil. Its type locality is Boysen Reservoir (48FR65), which is in a Wasatchian terrestrial horizon in the Wind River Formation of Wyoming.

It was recombined as Eoglyptosaurus donohoei by Sullivan (1979); it was synonymized subjectively with Glyptosaurus sylvestris by Sullivan (1989).
Glyptosaurus nodosus was named by Marsh (1871). Its type specimen is YPM 522 (frontal, two body scutes, unidentified skull fragment) and is a 3D body fossil. Its type locality is Grizzly Buttes, which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming.

It was synonymized subjectively with Glyptosaurus sylvestris by Sullivan (1979), Sullivan (1989).
Glyptosaurus hillsi was named by Gilmore (1928). Its type specimen is USNM 6004 (greater portion of top of skull, both maxillae with teeth, both quadrates, anterior portions of both jugals, greater portion of right ramus and portions of left) and is a 3D body fossil. Its type locality is Huerfano I, which is in a Bridgerian terrestrial horizon in the Huerfano Formation of Colorado.

It was synonymized subjectively with Paraglyptosaurus princeps by Sullivan (1979).

Synonymy list

Year	Name and author
1871	Glyptosaurus nodosus Marsh
1871	Glyptosaurus sylvestris Marsh
1871	Glyptosaurus ocellatus Marsh p. 105
1871	Glyptosaurus sylvestris Marsh p. 105
1872	Glyptosaurus princeps Marsh p. 302
1872	Glyptosaurus brevidens Marsh p. 305
1872	Glyptosaurus rugosus Marsh p. 305
1872	Glyptosaurus ocellatus Marsh p. 306
1873	Glyptosaurus ocellatus Leidy p. 183
1902	Glyptosaurus brevidens Hay p. 475
1902	Glyptosaurus nodosus Hay p. 475
1902	Glyptosaurus ocellatus Hay p. 475
1902	Glyptosaurus princeps Hay p. 475
1902	Glyptosaurus rugosus Hay p. 475
1902	Glyptosaurus sylvestris Hay p. 475
1928	Glyptosaurus hillsi Gilmore p. 107 figs. Pl. 4:3, Pl. 17
1930	Glyptosaurus hillsi Hay p. 253
1930	Glyptosaurus nodosus Hay p. 254
1930	Glyptosaurus princeps Hay p. 254
1930	Glyptosaurus rugosus Hay p. 254
1930	Glyptosaurus sylvestris Hay p. 254
1952	Glyptosaurus donohoei White
1979	Eoglyptosaurus donohoei Sullivan
1979	Paraglyptosaurus princeps Sullivan
2000	Glyptosaurus sylvestris Zonneveld et al.

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Time interval	Ma	Country or state	Original ID and collection number
Lostcabinian	54.9 - 50.5	USA (Wyoming)	Glyptosaurus donohoei (15917)
Wasatchian	54.9 - 50.5	USA (Wyoming)	Eoglyptosaurus donohoei (15454 180111) Glyptosaurus donohoei (15904) Glyptosaurus sylvestris (15670 27268 232925) Paraglyptosaurus princeps (74619)
Wasatchian	54.9 - 50.5	USA (Colorado)	Glyptosaurus sylvestris (15652) Paraglyptosaurus princeps (15650)
Bridgerian	50.5 - 46.2	USA (Wyoming)	Glyptosaurus sylvestris (15837 16255 16270 180521) Glyptosaurus sylvestris, Glyptosaurus nodosus, Glyptosaurus brevidens, Glyptosaurus princeps, Glyptosaurus rugosus, Paraglyptosaurus princeps (type locality: 16228) Paraglyptosaurus princeps (16234 144593 180198)
Bridgerian	50.5 - 46.2	USA (Utah)	Glyptosaurus sylvestris (16396)
Bridgerian	50.5 - 46.2	USA (Colorado)	Glyptosaurus hillsi (16239) Glyptosaurus sp., Glyptosaurus hillsi (180105) Glyptosaurus sylvestris, Paraglyptosaurus princeps, Eoglyptosaurus donohoei (16240)
Middle Eocene	48.07 - 37.71	USA (Wyoming)	Glyptosaurus princeps, Paraglyptosaurus princeps (118469) Glyptosaurus sylvestris (97759)