Drysdale hardyhead [SEP] parent taxon
Drysdale hardyhead
The Drysdale hardyhead ("Craterocephalus helenae") is a species of fish in the family Atherinidae endemic to the Drystale River in Western Australia. It is listed as near threatened on the IUCN Red List and rare under the Australian EPBC Act 1999. The specific name honours Ivantsoff's wife, Helena.
Little is known about the biology or ecology of this species, but it is an omnivore which feeds on aquatic insects, small crustaceans and algae.
on the osteology and phylogenetic relationships of ""Tanius laiyangensis"" is published by Zhang "et al." (2019).
- A study on the bone histology of tibiae of "Maiasaura peeblesorum", focusing on the composition, frequency and cortical extent of localized vascular changes, is published by Woodward (2019).
- Three juvenile specimens of "Prosaurolophus maximus", providing new information on the ontogeny of this taxon, are described from the Bearpaw Formation (Alberta, Canada) by Drysdale "et