C. Patterson’s scientific contributions

... However, death caused by a rapid onset of anoxia should be evidenced by extreme muscular contractions, i.e., tetany of the jaws, deep arching of the body, and fanned and erected fins (e.g., Carnevale et al. 2022), which have not been consistently observed loss of nuptial tubercles, loss of uncinate process on the fourth epibranchial, and loss of maxillary and basihyal teeth), none of which was regarded by Johnson & Patterson (1996) as valid to potentially characterise a group formed by argentiniforms and alepocephaloids. On the other hand, Johnson & Patterson (1996) offered two additional characters in order to characterise this pair, the ventral displacement of the distal parts of the first two to four epineurals (see also Patterson & Johnson 1995) and the caudal median cartilages supporting the lowermost ray of the upper caudal lobe (see also Wiley & Johnson 2010). Arratia (2018) evidenced the controversial nature of these features, especially of the accessory cartilage that connects the fifth ceratobranchial to the fifth epibranchial, which represents the novel element of the crumenal organ, whose occurrence has been reported by De Pinna & Di Dario (2010) also in the African freshwater clupeomorph Denticeps clupeoides. ...

Reference:

The argentiniform Surlykus longigracilis gen. et sp. nov., the most abundant fish from the Eocene Fur Formation of Denmark