Thayeria obliqua, Eigenmann

publication ID	https://doi.org/10.1590/S1679-62252010000300001
DOI	https://doi.org/10.5281/zenodo.17817595
persistent identifier	https://treatment.plazi.org/id/FD4787B0-017E-FFC1-FF16-F987C710A2FC
treatment provided by	Carolina
scientific name	Thayeria obliqua
status

Autapomorphies of Thayeria obliqua :

1. Form of anterior expansion of basihyal (191): (0> 1) expanded, with anterior margin with two-thirds or more of its length. Paralleled in Aulixidens eugeniae , Cyphocharax spilotus , and Prodontocharax melanotus .

2. Development of transverse process of neural arch of third vertebra (219): (0> 1) well developed and extending beyond anterior margin of tripus. Paralleled in node 302, and in Agoniates anchovia , Cyanocharax alburnus , Deuterodon langei , Engraulisoma taeniatum , Hemiodus cf. thayeria , and Roeboexodon geryi . Some trees: Paralleled in Microschemobrycon casiquiare and Parecbasis cyclolepis .

3. Process of scapula forming anterior border of scapular foramen (244): (0> 1) absent. Paralleled in nodes 193 and 252 and in Aphyodite grammica , Deuterodon langei , Hoplias cf. malabaricus , Hyphessobrycon herbertaxelrodi , Leporinus striatus , and Odontostilbe paraguayensis .

4. Dorsal-fin rays articulating with first dorsal pterygiophore (266): (1> 0) two. Reversal of synapomorphy 4 of node 203. Paralleled in Bario steindachneri . Some trees: Paralleled in Hyphessobrycon elachys and Paracheirodon axelrodi .