 Temnospondyls , like all amphibians , reproduced in aquatic environments . Most temnospondyls probably reproduced through external fertilization . Like most living frogs , female temnospondyls would have laid masses of eggs in water while males released sperm to fertilize them . Several fossils were described from the Early Permian of Texas in 1998 that may be egg masses of dissorophoid temnospondyls . They were the first known fossils of amphibian eggs . The fossils consist of small disks with thin membranes that are probably vitelline membranes and halo @-@ like areas surrounding them that are most likely mucous coatings . They are attached to plant fossils , suggesting that these temnospondyls laid eggs on aquatic plants much like modern frogs . The mucous membranes show that the eggs were laid by amphibians , not fish ( their eggs lack mucous ) , but the type of amphibian that laid them cannot be known because no body fossils are preserved with the eggs . The eggs are thought to be from dissorophoids because they are likely to be close relatives of modern amphibians , and probably had similar reproductive strategies . They are also the most common amphibians from the deposit in which the eggs were found . 
 Temnospondyls , like all amphibians , reproduced in aquatic environments . Most temnospondyls probably reproduced through external fertilization . Like most living frogs , female temnospondyls would <a href='been_done' title='1'><mark>have</mark></a> laid masses of eggs in water while males released sperm to fertilize them . Several fossils <a href='uninflect' title='2'><mark>were</mark></a> described from the Early Permian of Texas in 1998 <a href='null_relcl' title='3'><mark>that</mark></a>may be egg masses of dissorophoid temnospondyls . They <a href='uninflect' title='4'><mark>were</mark></a> the first known fossils of amphibian eggs . The fossils consist of small disks with thin membranes <a href='null_relcl' title='5'><mark>that</mark></a><a href='drop_aux' title='6'><mark>are</mark></a>probably vitelline membranes and halo @-@ like areas surrounding them <a href='null_relcl' title='7'><mark>that</mark></a><a href='drop_aux' title='8'><mark>are</mark></a>most likely mucous coatings . They are attached to plant fossils , suggesting that these temnospondyls laid eggs on aquatic plants much like modern frogs . The mucous membranes show that the eggs <a href='uninflect' title='9'><mark>were</mark></a> laid by amphibians , not fish ( their eggs lack mucous ) , but the type of amphibian <a href='null_relcl' title='10'><mark>that</mark></a>laid them cannot be known because no body fossils are preserved with the eggs . The eggs are thought to be from dissorophoids because they <a href='drop_aux' title='11'><mark>are</mark></a>likely to be close relatives of modern amphibians , and probably had similar reproductive strategies . They <a href='drop_aux' title='12'><mark>are</mark></a>also the most common amphibians from the deposit in which the eggs <a href='uninflect' title='13'><mark>were</mark></a> found . 
Temnospondyls , like all amphibians , reproduced in aquatic environments . Most temnospondyls probably reproduced through external fertilization . Like most living frogs , female temnospondyls would done laid masses of eggs in water while males released sperm to fertilize them . Several fossils was described from the Early Permian of Texas in 1998 may be egg masses of dissorophoid temnospondyls . They was the first known fossils of amphibian eggs . The fossils consist of small disks with thin membranes prob vitelline membranes and halo @-@ like areas surrounding them most likely mucous coatings . They are attached to plant fossils , suggesting dat dese temnospondyls laid eggs on aquatic plants much like modern frogs . da mucous membranes show tdatthe eggs was laid by amphibians , not fish ( their eggs lack mucous ) , but tdatype of amphibian laid them cannot b known because no body fossils are preserved wid the eggs . Thdaggs are thought to be from dissorophoids becuz they likely to bbclose relatives of modern amphibians , and probdef similar reproductive strategies . They also the most common amphibians from the deposit in which thedags was found .