Species: decheni GOLDFUSS, 1847
Etymology:

Neotype: MB.Am. 166 a & b (part and counterpart).

Locality: Lebach, near Saarbruchen, Between Rummelbach adn Gresaubach, Saarland State, Germany.

Horizon: Oderheim beds.

Biostratigraphy:

Age: Autunian, Sakmarian Stage, Upper Lower to Lower Middle Rotliegendes Epoch, Early Permian.

Material: Fragmentary skull.

Referred material:

Note: Per SCHOCH & MILNER, 2000…From the type locality: Hundreds of specimens including collections at BMNH, FG, GMBS, GPIT, MB, MCZ, MNHN, SMNS, UMZC (= DMSW). The location of GOLDFUSS’ other types, also in th Dechen collection is uncertain…

LYDEKKER 1890

BMNH R1741: Cast of fragmentary skull of type.

BMNH R1744: Cast of anterior part of skeleton.

BMNH R1746: Cast of ventral armor and numerous limb-bones and ribs.

BMNH R1747: 2 casts of a vertebral column and ventral armor.

BMNH 40162: Fragmentary skull and skeleton.

BMNH 35802-3: Fragmentary skull and part of ventral armour and some ribs.

BMNH 35806-7: Fragmentary skull.

BMNH 35797: Skull.

BMNH 35800-01: Hinder portion of skull.

BMNH 42806: Fragmentary skull and mandible.

BMNH R1298: Skull and thoracic region of an immature individual.

BMNH 40043: Skull and ventral armour of an immature individual.

BMNH 35798: Skull and ventral armour of an immature individual.

BMNH 33069: Skull of a juvenile.

BMNH 29003: Fragmentary skull of a juvenile.

BMNH 40045: Fragmentary skull, vertebral column and ventral armour of a juvenile.

BMNH R1748: Skull and thoracic bucklar of a juvenile.

BMNH 42755: Skull and median thoracic plate of a juvenile.

BMNH R1749: Skull and thoracic buckelr of a juvenile.

BMNH 29001: Anterior portion of a skeleton.

BMNH 29004: Impression of part of the vertebral column, pelvic girdle and dermal armour.

BMNH 42807: Vertebral column, ribs and ventral armour.

BMNH 35655: Vertebral column, impressions of the limb-bones, and part of the ventral armour of an immature individual.

BMNH 29005: Ventral armour of an immature individual.

BMNH R1750: Fragmentary shoulder girdle.

BMNH R534: A plaster molded in relief taken from a nodule showing the impression of part of the vertebral column and ribs.

BMNH R1471: A plaster model on relief taken from a nodual showing the impression of the lateral aspect of 3 vertebrae.

BMNH R1455: A plaster model in relief taken from a nodule showing the impression of the ventral aspect of 4 caudal vertebrae.

GUBIN, 1997

MV P10836, MV P198455, MV P198456, MV P198458, MV P198459, MV P198461, MV P27465: Fragmentary skulls.

MEYER:

8 skulls.

BMNH R42755, R1748, R1749, R35798/9, R29001, 33069, 40044, 40043, 1787, 1298, 1786, 42806, 35806/7, 35796/7, 1785: Skulls.

WHITTARD

BMNH R40045, 42754, DMSW 2: Fragmentary skulls.

DMSW collection: 3, 4, & 5: Fragmentary lower jaws.

WITZMANN, 2006

BSM 1869 III 6, 1969 II 7:

GMBS P/403, 426, 494, 495, 497, 498, 503, 505, 635, 800, 804, 805, 828, 853, 879, 938:

GPIT Am 20, 21, 233, 695:

IGS UII 1/1, 1/2, UIII 2, 2/1, 2/2, 2/3, 3/3, 4/4, 4/5, 4/12, 5/3, Saa 145:

IPB A 3, 7, 9, 26, 1344, 1352-1355, 1357, R 432, 438, 450:

IPFUB 13:

MB Am 121, 123, 124, 126, 127, 129, 130, 134 (juvenile), 136, 138-140, 149, 150, 152-156, 160, 167, 169, 171-175, 178-189, 191, 193-195, 197, 201-208, 213, 216, 218-223, 225, 228, 230, 233-237,253, 255, 257, 258, 263, 270-272, 275, 280, 287, 294, 307, 208, 317, 323, 329, 953 (Adult), 986, 994:

MB Am 227 (young adult): Skeleton with scales.

Note: WITZMAN, 2007.

MB Am 229, 252, 273, 289, IGS UII 3/1: Skeleton with scales.

Note: WITZMAN, 2007.

NNM 18154, 39027, 39029, 39031, 39034, 29036, 39040, 39043, 39044, 39046, 39048, 39051, 39053, 39065, 39066, 39070, 39072, 39074, 39080-39084, 39087, 39097, 446474, 446478, 446479:

PIMUZ A/II 0019-0024, 0061:

SMF A3, 3/1, 4, 8, 14, 21, 22, 24, 32, 35, 71, 487:

SMNK 39/13, 39/17, 119, 131:

SMNS 3706, 11512, 81850, 81993-81995:

TM 1154, 1169:

 

KLUG, KRIWET & WITZMANN, 2007

Locality: Lake Hamberg, Saar-Nahe Basin, Germany.

Horizon: Upper Odernheim Unit, Meisenheim Formation.

Biostatigraphy:

Age: Lower Rotlegend, Lowermost Permian.

Material:

UHC-P 0682: Skeleton of Triodus sessilis.
Note: With 2 larval temnospondyls (Archegosaurus dechnei [skull and skeleton] and Chelderpeton latirostre [fragmentary skull and nearly complete skeleton] with an acanthodian Acanthodes bronni keletal elements in its digestive track) within its digestive track.

 

PATON, 1975

Locality: Lebach, Saarbruchen, Saarland State, Germany

Horizon: Lower Clay Ironstone of the Coal Formation.

Biostratigraphy:

Age: Autunian, Sakmarian stage, upper lower to lower middle Rotliegendes Epoch, Early Permian.

Material:

RSM: 3 skulls.

 

= Pygopterus lucius AGASSIZ, 1833-43
Etymology:

Holotype:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

 

= Archegosaurus medius GOLDFUSS, 1847
Etymology: Latin, medius, "middle, intermedate."

Holotype:

Locality: Lebach, Saarbruchen, Saarland State, Germany

Horizon: Lower Clay Ironstone of the Coal Formation.

Biostratigraphy:

Age: Autunian, Sakmarian stage, upper lower to lower middle Rotliegendes Epoch, Early Permian.

Material: Anterior portion of a skeleton of a juvenile.

Referred material:

LYDEKKER, 1890

BMNH R1742: Cast of type, anterior portion of a skeleton of a juvenile.

BMNH R1745: Cast of anterior portion of a skeleton.

 

= Archegosaurus minor GOLDFUSS, 1847
Etymology: Latin, minor, "minor, small."

Holotype:

Locality: Lebach, near Saarbruchen, Saarland State, Germany

Horizon: Lower Clay Ironstone of the Coal Formation.

Biostratigraphy:

Age: Autunian, Sakmarian stage, upper lower to lower middle Rotliegendes Epoch, Early Permian.

Material:

Referred material:

LYDEKKER, 1890

BMNH R1743: Cast of type, skull, thoracic buckelr and anterior vertebrae of a juvenile.