#plagiosaurid
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arctomet.bsky.social
A giant plagiosaurid temnospondyl from Bjørnøya (Svalbard, Norway) and the origin of the plagiosaurid body plan - Schoch - 2026 - Papers in Palaeontology - Wiley Online Library onlinelibrary.wiley.com/doi/10.1002/...
A giant plagiosaurid temnospondyl from Bjørnøya (Svalbard, Norway) and the origin of the plagiosaurid body plan
An articulated temnospondyl skeleton from Middle Triassic deposits of Bjørnøya (Bear Island) in the western Barents Sea is described as a new plagiosaurid genus and species, Arctobatrachus urdensis. ...
onlinelibrary.wiley.com
August 1, 2026 at 1:05 PM
drskyskull.bsky.social
"plagiosaurid?"

I hate amphibians that copy other people's work

#NicheJokes
August 30, 2026 at 2:17 PM
mmarcosaurus.bsky.social
onlinelibrary.wiley.com/doi/10.1002/...
A giant plagiosaurid temnospondyl from Bjørnøya (Svalbard, Norway) and the origin of the plagiosaurid body plan
An articulated temnospondyl skeleton from Middle Triassic deposits of Bjørnøya (Bear Island) in the western Barents Sea is described as a new plagiosaurid genus and species, Arctobatrachus urdensis. ...
onlinelibrary.wiley.com
August 30, 2026 at 2:44 AM
arctomet.bsky.social
Schoch, R.R., Gastou, S., Steyer, JS. et al. Morphology and ontogeny of the plagiosaurid temnospondyl Plagiosternum granulosum from the Middle Triassic of Germany. PalZ (2025). doi.org/10.1007/s125...
Morphology and ontogeny of the plagiosaurid temnospondyl Plagiosternum granulosum from the Middle Triassic of Germany - PalZ
Plagiosaurids form a small but highly disparate clade of Triassic temnospondyls that are characterized by extremely flattened and wide skulls, large orbits and a knobby to pustular ornamentation. The ...
doi.org
January 2, 2026 at 2:26 PM
batmanelvisigodo.bsky.social
#temnovember2024 day 28: Plagiosaurus
Time for day 28 of #temnovember, and now its time for a flat one, #Plagiosaurus, a small #plagiosaurid from the late Triassic of central Europe
#paleoart #sciart #amphibian #temnospondyl #triassic
November 28, 2024 at 7:59 PM
thepalass.bsky.social
A giant plagiosaurid temnospondyl from Bjørnøya (Svalbard, Norway) & the origin of the plagiosaurid body plan onlinelibrary.wiley.com/doi/10.1002/... #PapersinPalaeontology @mfnberlin.bsky.social
Map, photographs and line drawings of a fossil tetrapod - the plagiosaur Arctobatrachus urdensis. Top left: map with a red star showing the position of Bjørnøya (Bear Island) in the Arctic region. Beneath that is a black and white photograph taken at the excavation site in 1948. Skull is lying with snout towards the bottom, two large eyes above. Below to the right is the skull in its present state (PMO 201.958), it shows evidence of weathering as it was not recovered from the fossil site until 1985. Above that to the right is a reconstruction of the skull (scale bar beneath is 5 cm. On the right is a line diagram of the specimen as it was originally discovered, based on field photos taken in 1948 and collected material (scale bar at top right is 10 cm). Red rectangle in the centre is a cover image from the journal Papers in Palaeontology.
August 4, 2026 at 7:45 PM
paleogalli.bsky.social
Um temnospôndilo plagiossaurídeo gigante de Bjørnøya (Svalbard, Noruega) e a origem do plano corporal dos plagiossaurídeos onlinelibrary.wiley.com/doi/10.1002/...
A giant plagiosaurid temnospondyl from Bjørnøya (Svalbard, Norway) and the origin of the plagiosaurid body plan
An articulated temnospondyl skeleton from Middle Triassic deposits of Bjørnøya (Bear Island) in the western Barents Sea is described as a new plagiosaurid genus and species, Arctobatrachus urdensis. ...
onlinelibrary.wiley.com
July 31, 2026 at 1:35 PM
paleogalli.bsky.social
Morfologia e ontogenia do temnospôndilo plagiossaurídeo Plagiosternum granulosum, do Triássico Médio da Alemanha link.springer.com/article/10.1...
Morphology and ontogeny of the plagiosaurid temnospondyl Plagiosternum granulosum from the Middle Triassic of Germany - PalZ
Plagiosaurids form a small but highly disparate clade of Triassic temnospondyls that are characterized by extremely flattened and wide skulls, large orbits and a knobby to pustular ornamentation. The ...
link.springer.com
December 9, 2025 at 2:39 AM
edgescience.bsky.social
🚨NEW STUDY DROP🚨

Postcranial morphology and ontogeny of the Middle Triassic plagiosaurid temnospondyl Gerrothorax pulcherrimus and the increased body-flattening of bottom-dwelling plagiosaurs

t.co/gxajwP2eEy
https://doi.org/10.1093/zoolinnean/zlaf195
t.co
April 24, 2026 at 11:13 PM
koskinonodon.bsky.social
Schoch et al. (CC: @stereospondyl.bsky.social) revised the Late Tr plagiosaurid Plagiosternum from Germany, the collection of which has been much expanded recently. They also provide an overview of plagiosaurid ecology, noting Plagiosternum only occurs in brackish settings: doi.org/10.1007/s125...
Photographs and interpretive line drawings of various skulls of Plagiosternum granulosum from the Late Triassic of Germany. The skull is much wider than long, as is typical for plagiosaurids, and broadly parabolic. The orbits are greatly enlarged, taking up more than half the length of the skull, with a very narrow interorbital region; similarly large interpterygoid vacuities occur on the palate. Schematic diagram showing the different types of paleoenvironments in the Late Triassic of Germany (e.g., small shallow lakes, large deep lakes, rivers, brackish lagoons/lakes). Plagiosaurids are largely separated between these habitats, with Plagiosternum only found in brackish settings for example, whereas Gerrothorax is only found in freshwater lakes, and Megalophthalma is only known from streams.
January 2, 2026 at 6:46 PM
paleogalli.bsky.social
Morfologia pós-craniana e ontogenia do temnospôndilo plagiossaurídeo do Triássico Médio Gerrothorax pulcherrimus e o achatamento corporal acentuado em plagiossauros bentônicos academic.oup.com/zoolinnean/a...
Postcranial morphology and ontogeny of the Middle Triassic plagiosaurid temnospondyl Gerrothorax pulcherrimus and the increased body-flattening of bottom-dwelling plagiosaurs
Abstract. In order to understand the evolutionary modifications of the skeleton in plagiosaurids, a group of highly aberrant, flattened Triassic temnospond
academic.oup.com
January 9, 2026 at 2:56 PM
captain-colosteid.bsky.social
onlinelibrary.wiley.com/doi/pdf/10.1...
A giant plagiosaurid temnospondyl from Bjørnøya (Svalbard, Norway) and the origin of the plagiosaurid body plan
An articulated temnospondyl skeleton from Middle Triassic deposits of Bjørnøya (Bear Island) in the western Barents Sea is described as a new plagiosaurid genus and species, Arctobatrachus urdensis. ...
onlinelibrary.wiley.com
August 5, 2026 at 12:21 AM
tarokotani.bsky.social
1948年、北極圏ベア島でデカい化石が見つかるものの、掘り出せず。
→写真から、未知の化石と推定。でもベア島の厳しい冬を化石は越せないものと思われ。
→80年後、奇跡的に再発見。無事に掘り出される。
→三畳紀のプラギオサウルスの新種で最大のものと同定。
A giant plagiosaurid temnospondyl from Bjørnøya (Svalbard, Norway) and the origin of the plagiosaurid body plan
onlinelibrary.wiley.com/doi/10.1002/...
August 11, 2026 at 3:35 AM
koskinonodon.bsky.social
Prino et al. describe additional material from the latest Triassic Bonenburg site, expanding the known diversity to at least two capitosaurs and one plagiosaurid, which represent the most definitive terminal-Triassic temnospondyl records. doi.org/10.4202/app....
Photographs of a partial capitosaur pterygoid tentatively referred to the Late Triassic Cyclotosaurus. The preserved region consists only of the palatine ramus, with is mostly flat, with a slightly convex transverse flange angling posterolaterally and a thickened ridge that would have bordered the interpterygoid vacuity. No teeth are present. Photographs of a partial plagiosaurine interclavicle in ventral and dorsal views. The specimen is highly fragmentary but preserves one of the lateral wings of the typically penta-radiate interclavicle, with part of the central base that preserves pustular ornamentation and a striated surface for articulation with the clavicle.
January 3, 2025 at 3:24 PM
sciencex.bsky.social
An Arctic fossil left behind in 1948 is now the largest known plagiosaurid, about 2.7 meters long. Its 70-centimeter-wide skull also places it among the earliest known members of the group. doi.org/hcd88v
Arctic fossil abandoned in 1948 proves to be record-size Triassic hunter
Nearly 80 years ago, a British expedition discovered the battered remains of a giant fossil on the peak of an Arctic island.
phys.org
August 10, 2026 at 7:20 PM
koskinonodon.bsky.social
Witzmann & Schoch redescribed one of the lesser known Triassic plagiosaurids, Plagiosaurus depressus from Germany, which has never really had a complete osteology compiled, particularly for the cranium, which is more important for comparative work. doi.org/10.1093/zool...
Photograph of the lectotype of the Late Triassic plagiosaurid Plagiosaurus depressus from Germany. The specimen is a partial skull from the right temporal region of the skull, which is sufficiently preserved to indicate the skull was much wider than long, wiht large orbits and straight, angled lateral margins. Radiating ornamentation consisting of distinct pustules (raised bumps) is present on all of the elements. The anterior and left regions are not preserved. Interpretive illustrations of the interclavicles of Plagiosaurus depressus and Gerrothorax pulcherrimus in dorsal and ventral views. The interclavicles are unusually shaped for temnospondyls, forming a penta-radiate (five projections) structure with a broad central base that preserves the pustular ornamentation of these taxa, from which the different processes extend outwards. The anterior process is squared-off at the end, whereas the smaller lateral/posterolateral processes taper to rounded points.
January 3, 2025 at 3:24 PM
sandeeoster.bsky.social
A fossil found in 1948 and left exposed on an Arctic island for decades turned out to be Arctobatrachus urdensis, a 2.7m giant predator amphibian. Unlike its small bottom-dwelling cousins, this "bear-amphibian" likely actively hunted. medium.com/fossils-et-a...
Left in the Arctic: How an Abandoned Fossil Turned Out to Be a Giant Predator
A fossil first found in 1948 and left exposed for decades is revealed to be a new giant species at the base of the plagiosaurid family tree
medium.com
August 13, 2026 at 5:03 AM
english.pravda.ru.web.brid.gy
Discovery on Svalbard's Bear Island Rewrites Prehistoric Limits
Paleontologists have identified the remains of a previously unknown species of Triassic amphibian, Arctobatrachus urdensis, on the Svalbard archipelago. The discovery reveals that this predator, which lived approximately 250 million years ago, reached nearly three meters in length, redefining known size limits for plagiosaurids. The findings were published in the journal Papers in Palaeontology. Researchers determined that Arctobatrachus urdensis is the largest representative of the plagiosaurid group—aquatic predators that hunted along the bottoms of lakes and rivers. Morphologically, the species featured a wide, flattened body with a back protected by bony plates. Characteristic Data Habitat Period Triassic (251–201 million years ago) Body Length Approximately 2.7 meters Discovery Site Bear Island, Svalbard Chronology of Discovery The fossils were first spotted in the summer of 1948 by a biological expedition from the Universities of Cambridge and Leicester. The remains were located on Bear Island at an altitude of 430 meters above sea level, where wind and water erosion had exposed fragments of the skeleton. Due to a lack of appropriate equipment and concerns that the harsh Arctic climate would destroy the site, the team collected only soil samples.
english.pravda.ru
August 13, 2026 at 3:33 PM
wvcaver.bsky.social
“The fossil found on Bjørnøya (Bear Island)...has now been identified as a new species of ancient amphibian-like creature, a plagiosaurid…Named Arctobatrachus urdensis, the creature was a giant, roughly 2.7 m (about 8.9 feet) long, making it by far the largest plagiosaurid ever discovered.”
Arctic fossil abandoned in 1948 proves to be record-size Triassic hunter
Nearly 80 years ago, a British expedition discovered the battered remains of a giant fossil on the peak of an Arctic island. Unable to take it with them, they snapped some pictures, took some bones an...
phys.org
August 11, 2026 at 6:26 PM
zoojlinnsoc.bsky.social
Lift your spirits his January by taking a peek at the Plagiosaurs...you won't be disappointed!

Flattened Triassic temnospondyls (early amphibians) were adapted for ambush predation in oxygen-rich littoral environments. Read about their evolution here 👇🧪
Postcranial morphology and ontogeny of the Middle Triassic plagiosaurid temnospondyl Gerrothorax pulcherrimus and the increased body-flattening of bottom-dwelling plagiosaurs
Abstract. In order to understand the evolutionary modifications of the skeleton in plagiosaurids, a group of highly aberrant, flattened Triassic temnospond
doi.org
January 20, 2026 at 6:00 PM