(De, Francisco J. 2010)
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{De2010Zootaxa2440, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="De2010Zootaxa2440">{{Citation |
Ordo: Clupeiformes
Familia: Clupeidae
Name
Paleopiquitinga De, Francisco J., 2010 – Wikispecies link – Pensoft Profile
- Paleopiquitinga De, Francisco J., 2010, Zootaxa 2440: 3-4.
Description
Type-species. † Knightia brasiliensis Woodward, 1939.
Etymology
Etymology. The generic epithet is derived from the Greek word, palaios, ancient; plus piquitinga, a Tupi- Guarani name for a living herring [[[Lile piquitinga|Lile piquitinga]] (Schreiner & Ribeiro, 1903)] originally described in Pies & Marcgraf (1648); gender female.
Diagnosis
Diagnosis. Slender and small-sized (rarely exceeding 80 mm TL) clupeoid fish recognized by the following combination of features: head length contained 3 ½ in SL and equals to maximum body depth; anterior and posterior fontanels absent in the midline of cranial roof; longitudinal ridges on frontals; preepioccipital and large temporal fossae present; supratemporal commissure piercing parietal and supraoccipital bones; pterotic contributes to the temporal fossa; quadrate-mandible joint placed below the anterior half of orbit; jaws toothless; short lower jaw with deep coronoid process; two supramaxillae; seven branchiostegal rays; third postcleithrum rod-shaped; eight slender supraneural bones; 38 vertebrae, 15 caudal; large notochordal canal; short-based dorsal and anal fins; dorsal fin originating at the middle point of the body, anterior to pelvic fin; seven-rayed pelvic fin originating slightly behind vertical line anterior to the origin of dorsal fin; intermuscular epineural and epipleural bones extending over caudal region; predorsal scutes absent; at least 11 prepelvic abdominal scutes; eight postpelvic scutes; triangular pelvic scute; anteriormost preural vertebrae bearing long and thin neural spines; elongate leaf-like process of neural arch of first preural centrum; one epural; parhypurapophysis present; neural arch of the first preural centrum long and leaf-like; first ural centrum fused to first ural centrum; six hypurals; three uroneurals, with the first forming a strong pleurostyle; mid-sized cycloid scales with vertically arranged circuli; perforated scales of lateral line absent.
Discussion
Remarks. † Knightia eoceana from the Lower Eocene of Wyoming was described by Jordan (1907) as the type-species of † Knightia. Grande (1982) furnished a revised diagnosis for † Knightia based on a combination of the following features: i) one supramaxillary, ii) complete series of 12–14 dorsal scutes (each one with unsculptured wings and median keel), and (iii), relatively few vertebrae (36 to 40) and pleural ribs (20-22 pairs). He listed seven valid species: † Knightia eoceana, † Knightia alta, † Knightia “ copei ”, † Knightia vetusta, † Knightia n.sp (Tertiary of eastern China), † Knightia? yuyanga, and †“ Knightia ” brasiliensis. Afterwards, Grande (1985), concerning † “ Knightia ” brasiliensis, pointed out that “for reasons discussed above, this species must be removed from † Knightia (no new genus is proposed here without further study)”. † Paleopiquitinga brasiliensis possesses two supramaxillaries and lacks dorsal scutes. Only the lesser number of vertebrae and pleural ribs are shared by † Paleopiquitinga and † Knightia; which are also shared by † Gosiutichthys parvus (see Grande, 1982; 1985).
Taxon Treatment
- De, Francisco J.; 2010: Morphological and systematic reassessment of Knightia brasiliensis Woodward, 1939 (Teleostei: Clupeiformes) from the Pliocene of Parna�ba Basin, northeastern Brazil, Zootaxa 2440: 3-4. doi
This treatment was originally uploaded by Plazi, compare this treatment on Plazi. Unless this treatment has been substantially changed on Species-ID, Plazi requests to maintain a link back to the original repository.
