Fig. 3 Reconstructions of amphibian skeletons. (a) Carboniferous temnospondyl Balanerpeton (from A. R. Milner and S. E. K. Sequeira, The temnospondyl amphibians from the Visean of East Kirkton, West Lothian, Scotland, Trans. Roy. Soc. Edinburgh Earth Sci., 84:331–362, 1994). (b) Permian microsaur Rhynchonkos (as Goniorhynchus, from R. L. Carroll and P. Gaskill, The order Microsauria, Mem. Amer. Phil. Soc., 126:1–211, 1978).
Balanerpeton Balanerpeton.

(Milner & Sequeira 1994) [Balanerpetonskeletal reconstruction and life restoration immediately below is from Milner & Sequeira (1994), and borrowed from here].

i-a6a15b511ac2097808c68e8e16c85a0f-Balanerpeton.jpg(Milner & Sequeira 1994) [Balanerpetonskeletal reconstruction and life restoration  from Milner & Sequeira (1994), and borrowed from here].         

Abbreviated Dendrogram
`–+–+–Edopoidea | | |–Edops
|  |  `–+-Cochleosauridae
|  `–Saharastega
`–+-+–Balanerpeton | `–+–Dendrerpeton
|     `–+–Eugryinus | `?–Dvinosauria (if basal – Ruta et al 2007)
|   `–Euskelia | |==Dissorophoidea
|       |     `–LISSAMPHIBIA
|       `–Eryopoidea
`–+?–Dvinosauria (if Limnarchia – Yates &Warren 2000)
|–+–Plagiosauroidea | `–+–Rhytidosteidae | `–Brachyopoidea
|–TrematosauroideaBalanerpeton woodi - reconstruction of skullBalanerpeton woodi, reconstruction of skull; from Milner & Sequeira 1994 (via Tetrapoda – Balanerpeton)
  • Banksiops       A replacement name for Banksia townrowi

Bashkirosaurus is an extinct genus of archegosauroidean temnospondyl within the family Archegosauridae

  • Batrachiderpeton

 Batrachiderpeton reticulatum (= B. lineatum)

Batrachosauroididae indet.
Stereophotograph 1 : lateral view of the right side of the vertebra ; the picture is taken slightly from the above. Magnification X6.
Stereophotograph 2 : anterior view of the vertebra. Magnification X6.

  Batrachosuchus browni was a temnospondyl amphibian of the Triassic.
The  systematic paleontology of Batrachosuchus is:Amphibia Linnaeus 1758
Temnospondyli Zittel 1888
Stereospondyli von Zittel 1887
Trematosauria Yates and Warren 2000
Brachyopoidea Lydekker 1885
Brachyopidae Lydekker 1885
Batrachosuchus Broom 1903
Batrachosuchus browni Broom 1903    The type locality of Batrachosuchus browni is in the Burgersdorp Formation at Aliwal North Area in South Africa. The strata in which the remains were found is dated to a span of 249.7 – 237 million years ago (Olenekian-Anisian).
The length of Batrachosuchus browni was about 50 cm. (1.6 ft.).
batrachosuchus skull
This excerpt from Palaeos Vertebrates tells about physical characteristics of the family Brachyopidae:The Brachyopids were a group of medium-sized tetrapods characterized by short,broad flat skulls with large eyes situated far forward.
The legs are relativelysmall; the creature would have spent most of its life in streams and lakes,although it may have been quite capable of moving about on land.
The uppermargin of the mouth was armed with large fangs, indicating fish-eating habits.
The different species are distinguished mainly by details of skull shape.
( Neal Robbins)
  <–pdf  AMNH     Temnospondyl phylogeny

beelzebufo devil frog

Sluit dit venster
Zo zal het hele skelet van Beelzebufo ampinga eruit hebben gezien. Alleen de witte delen zijn daadwerkelijk gevonden. Het streepje rechts stelt vijf centimeter voor. (PNAS) Evans en haar collega’s bestudeerden de meer dan 60 fossiele fragmenten die in het Bassin Mahajanga ( Madagascar) werden verzameld. Het team kon geen volledig skelet samenvoegen, maar was wel in staat om een bijna volledig beeld van de schedel te reconstrueren ( er waren genoeg schedelbeenderen aanwezig om minstens de linkerhelft te reconstrueren :de andere helft is dan gebaseerd op symetrie ) , die “groot ,dik en uitgerust met een reusachtige mond” bleek te zijn .

Belzebufo (left) was 2-3 times bigger than the largest living South American frog in this family (top right), and 4-5 times bigger than the largest living Malagasy frog (bottom right).PNAS
Fig. 3.          <–
Fig. 3.

Representative elements of Beelzebufo ampinga, Late Cretaceous of Madagascar. (A and B) Left premaxilla (UA 9622), labial and lingual views. (C and D) Left maxilla, anterior region (FMNH PR 2510), labial and lingual views. (E) Right nasal, rostral process (UA 9674), dorsal view reflected. (F) Partial left nasal (UA 9629), dorsal view, within scaled nasal shape. (G) Immature right nasal, maxillary process (UA 9625, reflected for comparison with F), dorsolateral view. (H) Right squamosal, maxillary process (FMNH PR 1959), lateral view. (I) Left squamosal, partial maxillary process (UA 9639), lateral view. (J) Left frontoparietal, anterior region (FMNH PR 2512), dorsal view. (K) Right squamosal, otic process (FMNH PR 2536), dorsal view. (L) Sacral vertebra, right half with left side added by reflection (FMNH PR 2003), dorsal view. (M and N) Urostyle, anterior part (UA 9636), anterior and dorsal views. (O) Left tibiofibula (UA 9628), posterior view. (P) Left frontoparietal and exoccipital in posterior view with right side added by reflection (UA 9675). Small arrows indicate unbroken edges. ams, absence of medial shelf; ap, alary process; aps, absence of palatal shelf; mxa, maxillary articulation; occ, occipital condyle; pa, premaxillary articulation; pp, posterior process. (Scale bar: 10 mm.)

Beelzebufo ampigna rana huesos

Beelzebufo was the largest frog that ever lived, weighing about 10 pounds and measuring nearly a foot and a half from head to tail. Judging by its unusually wide mouth, it probably feasted on the occasional baby dinosaur as well as the usual insects.
Late Cretaceous (70 million years ago) / Large size; unusually large, wide-opening mouth
Slightly outweighing its contemporary descendant, the Goliath Frog of Equatorial Guinea,
Beelzebufo was the largest frog that ever lived, weighing about 10 pounds and measuring nearly a foot and a half from head to tail. Unlike contemporary frogs, which are mostly content to snack on insects, Beelzebufo (at least by the evidence of its unusually wide and capacious mouth) must have chowed down on the smaller animals of the late Cretaceous period, perhaps including baby dinosaurs and full-grown “dino-birds” in its diet.
Reprising a common theme, this prehistoric amphibian evolved to its giant size on the relatively isolated Indian Ocean island of Madagascar, where it didn’t have to deal with the large, predatory, theropod dinosaurs that ruled the earth elsewhere.
Goliath frog eating another frog

Beiyanerpeton jianpingensis.

The world’s oldest fossil of a salamander has been discovered. Six fossils of 157 million year old salamanders were found embedded in volcanic ash in an ancient lake bed in western Liaoning Province, China. The ash helped keep the fossil remarkably well preserved. The Jurassic salamander has been given the name, Beiyanerpeton jianpingensis. These fossils take salamanders back another 40 million years into the Oxfordian stage of the Late Jurassic. The previous oldest salamander fossil was a 114 million year old fossil found in Spain.

The ancient 4-inch long Jurassic salamanders resembled modern salamanders. The researchers say differences between the fossil and modern salamndroids include “a discrete and tooth-bearing palatine, and unequivocally nonpedicellate and monocuspid marginal teeth in large and presumably mature individuals.”

The research is published here in the Proceedings of the National Academy of Sciences(PNAS).



 jurassic salamander fossil

jurassic salamander fossil




















Photo: Mick Ellison, American Museum of Natural History/Proceedings of the National Academy of Sciences
Skull of Benthosuchus sushkini, an amphibian that lived 230 million years ago. This fossil originates from the Triassic rocks of the Scharzhenga River, Russia.
NaturalHistoryMuseum  London 
Fossil skull of the amphibian Benthosuchus sushkini




This is a fine exemple of a Branchiosaurus sp. from the Lower Permian of Germany. Approximately 260,000,000 years old.




Four Rare Fossil Amphibians  - Pfalz, GermanyFour Rare Fossil Amphibians  - Pfalz, GermanyFour Rare Fossil Amphibians  - Pfalz, Germany

three adults and one larval Branchiosaurs. These salamander-like amphibians once inhabited swamps in what is now Southwest Germany. This fossil plate comes from a  quarry near Pfalz, Germany

Although Branchiosaurs look like modern day salamanders they are not related and are classified in a separate order and family of amphibians. The name branchiosaur means “gill lizard”. As adults Branchiosaurs retained their external gills similar to a modern day amphibians like the mudpuppy (Necturus). Google fossilream to see more of our incredible fossils.

Branchiosaurus Geologic Age: Lower Permian Location: Odenheim, Rhineland-Pfalz, Southwest Germany


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