-
Permian dissorophoid Gerobatrachus hottoni is a
lissamphibian. If it is not, the
earliest known lissamphibians are
Triadobatrachus and
Czatkobatrachus from...
- (caecilians as lepospondyls, and
other lissamphibians as temnospondyls), the
lepospondyl hypothesis (
lissamphibians as lepospondyls), and the
newer hypothesis...
- or
lissamphibians.
There are
currently three major hypotheses on the
origins of
lissamphibians. In the
temnospondyl hypothesis (TH),
lissamphibians are...
- and
basal synapsids (predecessors of mammals). The
origin of
modern lissamphibians,
which first appeared during the
Early Tri****ic,
around 250 million...
- to
emerge from fishapods). However,
there is no
evidence of
lissamphibians or
lissamphibian-like
animals in the
fossil record at this time. The tetrapod...
-
grade (a
paraphyletic group),
ancestral to
living tetrapods such as
lissamphibians (modern amphibians) and
amniotes (reptiles, mammals, and kin). "Labyrinthodont"-grade...
-
nematodes and diatoms. It is also
synthesised by at
least some fish and
lissamphibians. Commercially,
chitin is
extracted from the s**** of crabs, shrimps...
-
convincing argument in
favor of the
temnospondyl origin of
lissamphibians. Seen in
lissamphibians and many
dissorophoid temnospondyls,
pedicellate teeth have...
-
phylogenetic analysis conducted about the same time
concluded that
lissamphibians first appeared about 330
million years ago and that the temnospondyl-origin...
- The Wes****
Formation is a fossil-rich
English geological formation that
dates from the
Berriasian to
Barremian stages of the
Early Cretaceous. It forms...
