Search Result for "ibero-mesornis": 
Wordnet 3.0

NOUN (1)

1. sparrow-sized fossil bird of the Cretaceous period having a vestigial tail; found in Spain; considered possibly the third most primitive of all birds;


The Collaborative International Dictionary of English v.0.48:

Ibero-mesornis \Ibero-mesornis\ n. A sparrow-sized fossil bird of the Lower Cretaceous having a strutlike pectoral bone and vestigial tail; found in Spain; considered possibly the third most primitive of all birds. [WordNet 1.5]
WordNet (r) 3.0 (2006):

Ibero-mesornis n 1: sparrow-sized fossil bird of the Cretaceous period having a vestigial tail; found in Spain; considered possibly the third most primitive of all birds