A szivacsok eredete és a megalárva jelenség

The early history of sponge and the megalarval phenomenon


  • PÁSZTOHY Zoltán


Rebra sorozat, Keleti-Kárpátok, neoproterozoikum, Garados Biota, megalárva


The carbonate sequence hosting the Garados Biota belongs to the precambrian Rebra Group of the Bucovinian Nappe. In the middle carbonate sequence, situated in the area of Lăzarea, macrofossils consisting of typical Ediacaran elements were found. Agglomeria appendixi, is a primitive sponge fossil, with two types, parenchymella and coeloblastula, of ’megalarvae’ bodies agglomerated on the settled, host metagastraea organism, which after the fusion processes formed a mosaic chimera.


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