These were thought to represent several different species, which resulted in a large number of invalid junior synonyms.
This is certainly the case in taxonomy, in which, with few exceptions, the valid name for a species is the first name that was published, and the rest are invalid "junior synonyms".
Agassiz consequently renamed the genus Platysaurus, probably from Greek πλατυς (platys - "broad, flat, broad-shouldered"), creating an invalid junior synonym.
Similarly, there are a plethora of synonyms (invalid duplicate names) at the genus level.
The name is derived from the junior synonym (invalid name) Caprella macho, applied in 1995 to the species by Dirk Platvoet et al. who initially believed they were a different species.
In 1936, American palaeontologists Walter Granger and William K. Gregory proposed that Forster-Cooper's Baluchitherium osborni was likely a junior synonym (an invalid name for the same taxon) of Paraceratherium bugtiense, because these specimens were collected at the same locality and were possibly part of the same morphologically variable species.
Over the years, multiple species that have once been assigned to Cetiosauriscus have been considered invalid, reassigned, or sunk as a synonym: Cetiosauriscus leedsi: In 1887, John Whittaker Hulke named a new species of sauropod, Ornithopsis leedsi.
All named species of Plateosaurus except the type species and P. gracilis have turned out to be junior synonyms of the type species or invalid names.
Boletus pinicola is a synonym subsequently found to be an invalid name.
vinosus) in 1881, was invalid, because Quélet's basionym was an illegitimate nomenclatural synonym of a species named in 1855 by Jean-Baptiste Barla.
