part of part of in taxon Teleostei tissue parallel fiber molecular layer corpus cerebelli molecular layer valvula cerebelli parallel fiber, teleost UBERON:2002218 This class was sourced from an external ontology (teleost_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon ZFA:0001713 parallel fibers A parallel fiber results from the axon of a cerebellar granule cell ascending through the molecular layer where it does not bifurcate and synapses on the dendritic branches of Purkinje cells and stellate cells. The parallel fibers in teleost fish do not bifurcate in contrast to other vertebrates.