Abstract
Two upper Givetian-lower Frasnian lungfishes from Mt. Howitt, Victoria which have cranial ribs, show remarkable similarities in postcranial skeletons, despite one being tooth-plated (Howidipterus donnae Long, 1992) and the other having denticle-covered dentition (Barwickia downunda Long, 1992). It is suggested that such a complex suite of characters for air gulping probably arose only once in dipnoan evolution, so cranial ribs may denote a monophyletic group that includes all post-Middle Devonian tooth-plated dipnoans plus Conchopoma. Dentitions of the two Mt. Howitt lungfishes confirms their placement in the Fleurantiidae and close relation as sister taxa. -from Author
| Original language | English |
|---|---|
| Pages (from-to) | 199-209 |
| Number of pages | 11 |
| Journal | Memoir - Association of Australasian Palaeontologists |
| Volume | 15 |
| Publication status | Published - 1 Jan 1993 |
| Externally published | Yes |