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Thaiichthys buddhabutrensis
Taxonomy
Lepidotes buddhabutrensis was named by Cavin et al. (2003). Its type specimen is K12-2, a partial skull, and it is a compression fossil. Its type locality is Phu Nam Jun, which is in a Tithonian/Berriasian terrestrial horizon in the Phu Kradung Formation of Thailand. It is the type species of Thaiichthys.
It was recombined as Thaiichthys buddhabutrensis by Cavin et al. (2013).
It was recombined as Thaiichthys buddhabutrensis by Cavin et al. (2013).
Entered
by D. Sinopoli (authorized by M. Uhen) on 2026-05-31; modified by D. Sinopoli on 2026-05-31
Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Lepidotes buddhabutrensis Cavin et al. |
| 2013 | Thaiichthys buddhabutrensis Cavin et al. p. 186 |
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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.
†Thaiichthys buddhabutrensis Cavin et al. 2013
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. Cavin et al. 2003 | Lepidotes, characterized by a reduced preorbital region; skull roof slightly concave in lateral view; frontal short, almost quadrangular in shape; more than one pair of extrascapulars; large dermosphenotic, few infraorbitals (circa 8 or 9) and few suborbitals (2/3); cheek region filled with an enlarged infraorbital, which connects the preoperculum; numerous strong (circa 12), slightly recurved teeth on the well developed premaxilla; preoperculum with two limbs arranged at an approximately right angle, the horizontal branch is slightly shorter than the vertical one. | |
| L. Cavin et al. 2013 | Body deep, c. 2.6 times longer than
high; preorbital region reduced; skull roof slightly concave in lateral view; frontal short, almost quadrangular in shape; more than one pair of extrascapulars; large dermosphenotic; few infraorbitals (circa 9 or 10) and few suborbitals (generally 2); cheek region completely covered by bones, with an enlarged infraorbital, which contacts the preopercle; numerous (circa 10), strong, slightly recurved teeth on the well-developed premaxilla; maxilla reduced with 4–6 small cylindrical teeth; no supramaxilla; mandible with an horizontal blade of bone at the symphysis that extends laterally; dentary bears c. 18 small teeth held horizontally with their acrodine apex upwards oriented; preoperculum with two limbs arranged at an approximately right angle, the horizontal branch is slightly shorter than the vertical one; 10 rays in the pectoral fin, 6 rays in the pelvic fin, 12 rays in the dorsal fin, 12 rays in the anal fin, 19 or more rays in the caudal fin; 46 scales along the lateral line. |
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Hendy et al. 2009, Carroll 1988 | |||||
Age range: base of the Tithonian to the top of the Berriasian or 149.20000 to 137.05000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tithonian - Berriasian | Thailand (Kalasin) | Lepidotes sp. (type locality: 92149) |