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Paleocharacodon
Taxonomy
Paleocharacodon was named by Caballero-Viñas et al. (2023). Its type is Paleocharacodon guzmanae.
It was assigned to Goodeinae by Caballero-Viñas et al. (2023).
It was assigned to Goodeinae by Caballero-Viñas et al. (2023).
Species
P. guzmanae (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2023 | Paleocharacodon Caballero-Viñas et al. p. 5 figs. Figures 3-14; Tables 1-2 |
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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. †Paleocharacodon Caballero-Viñas et al. 2023
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†Paleocharacodon guzmanae Caballero-Viñas et al. 2023
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. Caballero-Viñas et al. 2023 | Goodeinae fish with a unique combina- tion of characters and a maximum total length is near to 60 mm, the body is elongated; slightly humped behind the head; fins rounded; pelvic fin rising at the beginning of the posterior half of the body at 57.3% of SL in males and 64.8% of SL in females, and in both cases its rear edge does not reach the anterior end of the dorsal fin base; unpaired fins opposed to each other, located far back of the body, and behind the 69% of SL; total vertebrae 35 in males including 15 abdominals plus 20 caudals while there are 31-32 in females including 14 abdominals and 17-18 caudals; anal fin rays typically 16; in males the most anterior anal rays is rudimentary and this and the following five forms the andropodium; dorsal fin rays 15 in males and 12 in females; pectoral rays 12 in males and 13-14 in females; pelvic rays 6 in both sexes; ribs 15 in males and 12-13 in females; the lateral edges of the anterior end of the parasphenoid are parallel and have no lateral wings; jaws shows a dental battery composed of a labial row of long and robust teeth distally bicuspid and acute with bases co- ossified with the bone plus smaller conic and uni- cuspid teeth are located lingually; the palatoquad- rate arch is anteriorly inclined; the articular facet for the quadrate is donut-like with the central part formed by the retroarticular, and the surrounding region is formed by a couple of curved processes
of the anguloarticular; the palatine head has an anterolateral projection; the ventroposterior end of coracoid is convex and has the posterior edge ver- tically tilted and notched. This species is unique in having the posttemporal with a small anteroventral process, and the openings of the supraorbital canal show the formula 1-2a, 2b-3a, 3b-4a, 4b-5a, 5b-7. |
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||