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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Protexanites (Protexanites)
Taxonomy
Protexanites (Protexanites) was named by Matsumoto (1955).
It was assigned to Protexanites by Kennedy (1984), Kennedy and Christensen (1991), Kennedy (1995), Sealey and Lucas (2019).
It was assigned to Protexanites by Kennedy (1984), Kennedy and Christensen (1991), Kennedy (1995), Sealey and Lucas (2019).
Synonymy list
| Year | Name and author |
|---|---|
| 1955 | Protexanites (Protexanites) Matsumoto |
| 1984 | Protexanites (Protexanites) Kennedy p. 104 |
| 1991 | Protexanites (Protexanites) Kennedy and Christensen p. 214 |
| 1995 | Protexanites (Protexanites) Kennedy p. 417 |
| 2019 | Protexanites (Protexanites) Sealey and Lucas p. 179 |
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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.
Subg. †Protexanites (Protexanites) Matsumoto 1955
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†Protexanites (Protexanites) bontanti de Grossouvre 1894
†Protexanites (Protexanites) bourgeoisianus d'Orbigny 1850
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Invalid names: Mortoniceras shoshonense Meek 1876 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 7 | 28.9 | 18.1 | 46.0 | 28.0 | 10.6 | |
| shell diameter | 7 | 82.8 | 55.0 | 119.0 | 81.0 | 27.6 | |
| shell inflation | 7 | 32.1 | 19.0 | 52.4 | 27.0 | 13.1 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Late/Upper Coniacian to the top of the Santonian or 89.80000 to 83.60000 Ma
Collections (26 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Coniacian | USA (Texas) | Protexanites planatus (99937) | |
| Late/Upper Coniacian | France | Ammonites bourgeoisianus (179032) Mortoniceras bontanti (179066) Protexanites bontanti (179734) Protexanites bontanti, Protexanites bourgeoisianus (179220) Protexanites bourgeoisi (178990 179033 179054 179055 179056 179057 179058 179059 179060 179063 179064 179065) Protexanites bourgeoisi, Protexanites bontanti (179061) Protexanites bourgeoisianus (179219) | |
| Middle Coniacian | France | Protexanites bourgeoisianus (178991) Protexanites sp. (179221) | |
| Middle Coniacian | USA (Wyoming) | Mortoniceras shoshonense (88544) | |
| Middle Coniacian - Late/Upper Coniacian | France | Protexanites bourgeoisi (69886 179062) | |
| Late/Upper Coniacian - Santonian | Spain | Protexanites bourgeoisi (66968) | |
| Early/Lower Santonian | Denmark | Protexanites sp. (70061) |