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Euhystrichoceras
Taxonomy
Euhystrichoceras was named by Spath (1923) [Distribution: Lower Cenomanian; localy frequent in Tunisia, Algeria Texas (USA); rare in Nigeria, France and United Kingdom. Occurence in the Upper Cenomanian is doubtful.]. Its type is Ammonites nicaisei.
It was assigned to Schloenbachiinae by Reyment (1955); to Schloenbachiidae by Spath (1925), Young (1979); to Ammonoidea by Sepkoski (2002); and to Mortoniceratinae by Kennedy and Wright (1981), Cobban and Kennedy (1989), Kennedy and Morris (2018).
It was assigned to Schloenbachiinae by Reyment (1955); to Schloenbachiidae by Spath (1925), Young (1979); to Ammonoidea by Sepkoski (2002); and to Mortoniceratinae by Kennedy and Wright (1981), Cobban and Kennedy (1989), Kennedy and Morris (2018).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1923 | Euhystrichoceras Spath p. 143 |
| 1925 | Euhystrichoceras Spath |
| 1955 | Euhystrichoceras Reyment p. 19 |
| 1979 | Euhystrichoceras Young p. 35 |
| 1981 | Euhystrichoceras Kennedy and Wright |
| 1989 | Euhystrichoceras Cobban and Kennedy |
| 2002 | Euhystrichoceras Sepkoski |
| 2018 | Euhystrichoceras Kennedy and Morris p. 91 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Euhystrichoceras Spath 1923
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†Euhystrichoceras adkinsi Powell 1963
†Euhystrichoceras baylissi Kennedy and Wright 1981
†Euhystrichoceras constrictum Spath 1933
†Euhystrichoceras nicaisei Coquand 1862
†Euhystrichoceras occidentale Reyment 1955
†Euhystrichoceras simplex Spath 1933
Diagnosis
No diagnoses are available