The genus Tytthodiplatys was described in 2011 from a fossil found in Burmese amber which dates to the Albian age of the Cretaceous.
Albian | Albian Sands |
The genus is solely known from fossil amber found in Cantabria, northern Spain, dating to the Albian age of the Early Cretaceous Period.
The material comprising the type series was discovered in the late 19th century from the Phosphate-bearing beds of La Penthèive (Mammilatum Zone; lower Albian) at Louppy-le-Château in eastern France, which have also produced remains of plesiosaurs, ichthyosaurs, and crocodiles.
The genus rapidly diversified during the Albian into a number of morphologically distinct lineages that seem to have given rise to at least three other families of heteromorphs, the Baculitidae, Turrilitidae, and Scaphitidae.
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The type species is Hamites attenuatus from the early Albian, named by James Sowerby in his Mineral Conchology of Great Britain of 1814, although the genus itself was created by James Parkinson in his 1811 book Organic Remains of the Former World.
Five are known from the Early Cretaceous; Pterolytoceras and Metalytoceras from the Valangian (Petrolytoceras may extend back to the Tithonian), Eulytoceras from the Hauterivian - Barremian, Argonauticeras and Pictetia from the Aptian - Albian.
The remains were recovered near the top of the Glen Rose Formation of Erath County in central Texas, in rocks dating from the early Albian faunal stage.
Its remains have been found in the Aptian-Albian age Lower Cretaceous Arundel Formation of Muirkirk, Prince George's County, Maryland.
The Jiufotang overlays the Yixian, which suggests an Aptian or Albian age (between 100-120 million years old), according to Swisher et al. (1999).
The holotype specimen, NMV P186303, was found in a layer of the Eumeralla Formation, dating to the Albian faunal stage in the early Cretaceous, some 106 million years ago.
There is a possible age difference of perhaps over thirty million years between the Berriasian-Valanginian British and the younger Albian-Cenomanian American form.