Late that year he began a long and fruitful collaboration with Duncan; which would see the publication of some 15 co-authored papers, many on fossils, over the course of twelve years.
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1877 also saw the publication of his first paper, in which he split the sea-lily genus Poteriocrinus into four; in his lifetime, Sladen would gain a reputation as a "splitter" because of his proclivity for declaring specimens to belong to new genera or species.
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The son of a wealthy leather merchant, Sladen was born near Halifax, Yorkshire on 30 June 1849.
Percy Bysshe Shelley | Percy Grainger | Percy Sledge | Percy Greenbank | Hugh Percy, 2nd Duke of Northumberland | Hugh Percy, 1st Duke of Northumberland | Charles H. Percy | Percy | Percy Jackson: Sea of Monsters | Percy Dearmer | Ralph Percy, 12th Duke of Northumberland | Percy Jackson & the Olympians | Percy Fender | Percy Fawcett | Charles Percy | Benjamin Percy | Percy Thrower | Percy Goetschius | Elisabeth Sladen | Stephenson Percy Smith | Sharon Percy | Percy Smythe, 6th Viscount Strangford | Percy Jackson: Sea of Monsters (film) | Henry Percy, 6th Earl of Northumberland | Henry Percy, 1st Earl of Northumberland | Algernon Percy, 4th Duke of Northumberland | Thomas Percy | Percy Williams Bridgman | Percy Smith | Percy Quin |
The Percy Sladen Memorial Trust is a trust fund administered by the Linnean Society of London for the support of scientific research.