Ocorrência Da Família Apocynaceae Juss. Na Chapada Do Araripe, Nordeste Do Brasil

Santos, Felipe Rufino dos; Alcântara, Bruno Melo de; Lisboa, Maria Amanda Nobre; Silva, Cíntia Larissa Pereira da; Silva, José Anderson Soares da; Antunes, Dhenes Ferreira; Silva, Leonardo Vitor Alves da; Silva, Cicera Thainá Gonçalves da; Diniz, Maria Fernanda Barros Gouveia; Sousa, Wallas Benevides Barbosa de; Lima, Ana Taynara Silva; Carvalho, Maria Naiane Martins de

doi:10.47094/978-65-5854-749-5/27-38

Cited by 1 publication

(10 citation statements)

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“…DISCUSSION AND CONCLUSION Maisey and Moody (2001) discussed the taxonomic hypothesis of the †Araripichthyidae family based on an extensive inventory of synapomorphies known for each group it has been allocated. Firstly, they raised doubts about the proposition of Santos (1985) that †Araripichthys castilhoi was a Beryciforme (Acanthopterygii) by sharing several characters (cf. presence of spiny rays in dorsal and anal fins, stegural and elevated occipital crest; absence of supraorbitals; presence of a mobile premaxilla with an extensive ascending process; modified maxillary-vomerine articulation; exclusion of the maxilla from the superior margin of the mouth; and absence of pelvic fins).…”

Section: Resultsmentioning

confidence: 99%

“…Within the three characters considered unique for Clupeocephala, in †Araripichthys castilhoi the early ossification of the autopalatine is not verifiable, the ventral hypohyal is not pierced by hyoidean artery (Santos, 1985:fig. 1.5) and the toothplate of cartilaginous fourth pharyngobranchial is absent, since its complete edentulous condition (Santos, 1985; Considering the homoplastic characters in the caudal skeleton of Clupeocephala, †Araripichthys castilhoi presents the two uroneurals arranged in parallel (versus uroneurals aligned at different angles), with uroneural 1 extending forward until the preural centrum 1, and seven hypurals (Santos, 1985:figs. 3.1, 3.2) (versus six or fewer hypurals present), represent states of characters found only in basal teleosts outside Clupeocephala (Arratia, 1999).…”

Section: Resultsmentioning

confidence: 99%

“…This result presented also a weakly supported topology for the phylogenetic analysis (Cavin, 2001) in which the †Protobramoidei was placed as a basal euteleost closely related to Esociformes. Maisey and Moody (2001) pointed out a very pertinent issue, even without performing a cladistic analysis, about the phylogenetic position of †Araripichthys based on a series of recognized synapomorphies (e.g., Patterson & Rosen, 1977;Stiassny, 1986;Johnson & Patterson, 1993Olney et al, 1993;Arratia, 1996) for each clade it was already attributed-Acanthomorpha as originally proposed by Santos (1985) and closely related to †Acanthichthys as later suggested by Arratia and Chorn (1998) and Cavin (2001) versus elopocephalan-like as indicated by Maisey and Blum (1991). And then, a dilemma arose and remains until now: should †Araripichthys castilhoi be a basal elopocephalan sharing some similarities with neoteleosts (Maisey, 1990;Maisey & Moody, 2001;Alvarado-Ortega & Brito, 2011)?…”

Section: Introductionmentioning

confidence: 99%

“…2, 3). Concomitantly we provide a brief description confronting its anatomical data already published in previous articles (e.g., Santos, 1985;Maisey & Blum, 1991;Cavin, 1997Cavin, , 2001Maisey & Moody, 2001;Alvarado-Ortega et al, 2011) with the current valid synapomorphies for basal Teleosts and Clupeocephala (Arratia, 1999(Arratia, , 2010, and Acanthopterygii (Wiley & Johnson, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…The enigmatic † Araripichthys castilhoi Santos, 1985, belongs to the paleo-ichthyofauna from the calcareous concretions of Romualdo Formation, Santana Group, Araripe Basin, northeast Brazil (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

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The paleohistology of †Araripichthys castilhoifrom the Lower Cretaceous of Araripe Basin, Northeastern Brazil: a typical case of basal teleost

Mayrinck

Meunier

Cupello

et al. 2022

Journal of Vertebrate Paleontology

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†Araripichthys castilhoi belongs to the paleo-ichthyofauna from the Aptian calcareous concretions of Romualdo Member, Santana Formation, Araripe Basin, northeast Brazil. It was originally placed within Beryciformes (Acanthomorphata) by a combination of plesiomorphic and apomorphic characters. Later, an anatomical review of †Araripichthys demonstrated the presence of several primitive characters (cf. presence of fin spines, orbitosphenoid, two supramaxillae, seven hypurals, autogenous hypurals 1 and 2, second ural centrum and first uroneural not fused, and cycloid scales) and aligned it with Clupeocephala. †Araripichthys was also considered closely related to †Acanthichthys (primitive Acanthomorphata), basically by the body shape resemblance. Other included †Araripichthys in †Protobramoidei (basal Clupeocephala) based on the absence of pelvic fins, presence of stout neural spines and scales partially covering the dorsal fin. The odd taxonomic history of †Araripichthys is directly related to its scarce number of available well-preserved specimens and concurrently its absence in a comprehensive phylogenetic analysis. Here we present a paleohistological study, an efficient tool to precise the taxonomic position of fossil fishes, especially in cases like that of †Araripichthys. Its paleohistology presents pseudolamellar bony tissues with stellate lacunae, filled by osteocytes with ramified cytoplasmic extensions. The star-shaped osteocytes of †Araripichthys are clearly characteristic of basal teleosts. Conversely, in the scarce Acanthopterygii taxa with cellular bone the osteocytes morphology is clearly distinct since their canaliculi are not regularly localized around these cells. The currently accepted synapomorphies for Elopomorpha, Clupeocephala, Acanthopterygii, and the already known anatomical data for †Araripichthys together with its paleohistology, corroborate its incertae sedis position within basal Teleostei.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%