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Hoarepora prattenanum
Taxonomy
Conocardium prattenanum was named by Hall (1856). Its type specimen is AMNH F1 39214, a shell, and it is a 3D body fossil. Its type locality is Bank of Mississippi river, near Alton, which is in a Meramecian carbonate limestone in the Salem Formation of Illinois.
It was recombined as Bransonia prattenanum by Hoare (1990); it was recombined as Oxyprora prattenanum by Hoare (2006); it was recombined as Hoarepora prattenanum by Mazaev (2023).
It was recombined as Bransonia prattenanum by Hoare (1990); it was recombined as Oxyprora prattenanum by Hoare (2006); it was recombined as Hoarepora prattenanum by Mazaev (2023).
Synonymy list
| Year | Name and author |
|---|---|
| 1856 | Conocardium prattenanum Hall p. 85 |
| 1882 | Conocardium prattenanum Whitfield p. 61 figs. pl. 7 f. 20 |
| 1883 | Conocardium prattenanum Hall pp. 346 - 347 figs. pl. 30 f. 20 |
| 1958 | Conocardium prattenianum Raasch |
| 1990 | Bransonia prattenanum Hoare p. 730 |
| 2006 | Oxyprora prattenanum Hoare p. 159 figs. 1.13 - 1.16 |
| 2023 | Hoarepora prattenanum Mazaev p. S73 |
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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.
†Hoarepora prattenanum Hall 1856
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. D. Hoare 2006 | Small with strongly-produced, prow-shaped, rostral face; dorsal margin straight; beaks opisthogyrate; snout set-off from body laterally by distinct change in slope; body not swollen; anterior gape large, wide, narrowing posteriorly, slightly expanded at anterior end, denticles apparently absent; rostral face with six coarse, concentric, intercalated costae; ventral orifice small, circular; primary carina rounded, similar in size to adjacent rostral face costa; body with 9 smaller, narrow, widely-spaced costae, some of which are intercalated; snout with 5 closely-spaced costae, partially intercalated, larger than body costae; prominent, fine, comarginal, growth crenulations on body, snout, and rostral face; larval shell not present.
Oxyprora equilaterale is similar to O. prattenanum in general but differs in having seven concentric costae on the rostral face, fewer and larger body costae, a stronger primary carina, and less produced rostral face. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: Meramecian or 343.00000 to 335.50000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Meramecian | Canada (Alberta) | Conocardium prattenianum (62396) | |
| Meramecian | USA (Illinois) | Conocardium prattenanum (type locality: 129929) |