| Date Note | Earliest date which this artist could draw this collection, date of publication of Egerton paper |
| Administrative History | First reference to species in Agassiz, J L R. 'Recherches sur les Poissons Fossiles', vol II, pt2 (1843), p280. Species first figured in Egerton, P M G, “On Chondrosteus, an Extinct Genus of the Sturionidae, Found in the Lias Formation at Lyme Regis”, ‘Philosophical Transactions of the Royal Society of London’, vol 148 (1858). |