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Triassic stem caecilian supports dissorophoid origin of living amphibians
Nature
Living amphibians (Lissamphibia) include frogs and salamanders (Batrachia) and the limbless worm-like caecilians (Gymnophiona).
15 miesięcy temu
Can a shade shed light on the monophyly of Cycloramphidae (Lissamphibia: Anura)?
ScienceDirect.com
In Cycloramphus lithomimeticus the lobe is present at stage 30. From larval stages 30–40 the lobe is uniformly dark and covers only a little portion of the...
52 miesiące temu
New Fossils Clarify the Early Evolution of Modern Frogs in North America (U.S
National Park Service (.gov)
Figure 1. Stratigraphic and geographic of Late Triassic and Early Jurassic frogs, including an age-calibrated stratigraphic section from...
34 miesiące temu
Key clue to amphibian evolution found in Petrified Forest
Fronteras: The Changing America Desk
For years, debate has raged about where a group of snakelike animals fit in the amphibian family tree.Now, an analysis in the journal Nature...
15 miesięcy temu
Scientists find oldest known caecilian fossil
The Jerusalem Post
76 Caecilian fossils have been found, and dated at 220 million years old, changing what scientists thought they knew about evolution.
15 miesięcy temu
220-Million-Year-Old Fossils Identified as Oldest Known Caecilian
Sci.News
Funcusvermis gilmorei lived in the tropical forests of what is now Arizona, the United States, during the Triassic period, approximately 220...
15 miesięcy temu
A large-scale phylogeny of Amphibia including over 2800 species, and a revised classification of extant frogs ...
ScienceDirect.com
The extant amphibians are one of the most diverse radiations of terrestrial vertebrates (>6800 species). Despite much recent focus on their conservation,...
77 miesięcy temu
Renewed emphasis on microvertebrate fossils recovers the oldest frogs in North America (U.S
National Park Service (.gov)
Article by Dr. Adam D. Marsh, Lead Paleontologist,Petrified Forest National Park. The Late Triassic Chinle Formation (~228–208 Ma) and...
61 miesięcy temu