Metamorphosis in a Silurian barnacle.

Metamorphosis in a Silurian barnacle.

Exceptionally preserved fossils from the Wenlock Series (Silurian) of Herefordshire, UK, provide unique evidence of metamorphosis from free-swimming cyprid larva to attached juvenile in a Palaeozoic barnacle. The larva had large brush-like anterior limbs. The juvenile shows the head transformed into...

Cur síos iomlán

Sonraí bibleagrafaíochta
Príomhchruthaitheoirí: Briggs, D, Sutton, MD, Siveter, D
Formáid: Journal article
Teanga:English
Foilsithe / Cruthaithe: 2005
Cur síos
Achoimre:Exceptionally preserved fossils from the Wenlock Series (Silurian) of Herefordshire, UK, provide unique evidence of metamorphosis from free-swimming cyprid larva to attached juvenile in a Palaeozoic barnacle. The larva had large brush-like anterior limbs. The juvenile shows the head transformed into a stalk and the development of the primordial condition of five mineralized plates within the carapace. The discovery of a cyprid larva indicates that crown group cirripedes had evolved by the Silurian.

Míreanna comhchosúla