1997
DOI: 10.1111/j.1502-3931.1997.tb00440.x
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Opisthosomal fusion and phylogeny of Palaeozoic Xiphosura

Abstract: Fusion of opisthosomal tergites to form a thoracetron has previously been considered a characteristic of the xiphosuran superfamilies Euproopoidea Eller, 1938, and Limuloidea Zittel, 1885. Evidence is presented here that fusion also occurs in Bellinuroidea Zittel & Eastman, 1913. Results of a cladistic analysis of Palaeozoic xiphosuran genera indicate that Synziphosurina Packard, 1886, is a paraphyletic assemblage of stem‐group Xiphosura. Superfamily Paleolimulidae superfam. nov. is erected for families Paleol… Show more

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Cited by 82 publications
(93 citation statements)
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References 30 publications
(16 reference statements)
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“…Even during the Carboniferous period, when the xiphosuran group experienced its highest diversity peak, the lineage consisted of not 450 species, as evidenced by the fossil record, indicating a very low radiation potential (Anderson and Selden, 1997) although it is possible that the recovered fossil record is an imperfect reflection of actual diversity. Nevertheless, our data are consistent with the idea that WGD events need not result in morphological changes (at least in horseshoe crabs), and could allow the buffering of transcriptional networks to external insult through complex overlapping patterns of expression, as suggested in Chapman et al, 2006, and further reinforced by the fact that transcriptional regulators are disproportionately retained after WGD events (Maere et al, 2005;Blomme et al, 2006).…”
Section: Tachypleus Tridentatusmentioning
confidence: 99%
See 1 more Smart Citation
“…Even during the Carboniferous period, when the xiphosuran group experienced its highest diversity peak, the lineage consisted of not 450 species, as evidenced by the fossil record, indicating a very low radiation potential (Anderson and Selden, 1997) although it is possible that the recovered fossil record is an imperfect reflection of actual diversity. Nevertheless, our data are consistent with the idea that WGD events need not result in morphological changes (at least in horseshoe crabs), and could allow the buffering of transcriptional networks to external insult through complex overlapping patterns of expression, as suggested in Chapman et al, 2006, and further reinforced by the fact that transcriptional regulators are disproportionately retained after WGD events (Maere et al, 2005;Blomme et al, 2006).…”
Section: Tachypleus Tridentatusmentioning
confidence: 99%
“…In addition, very limited diversity has been catalogued in the Xiphosura across geological time (Störmer 1952;Störmer 1955;Anderson and Selden, 1997). Present xiphosuran diversity is limited to just four species, L. polyphemus found in the Atlantic, and C. rotundicauda, Tachypleus gigas and Tachypleus tridentatus found in Southeast Asia.…”
Section: Introductionmentioning
confidence: 99%
“…2, Fig. S1); Xiphosurida are characterized by a fused opisthosoma (4). The interrelationships of synziphosurines are uncertain: limbs are only known in Offacolus kingi (7,8), Venustulus waukeshaensis (9), and Weinbergina opitzi (10).…”
Section: Resultsmentioning
confidence: 99%
“…Eles ocorrem como largas estruturas portando as brânquias em Xiphosura, e foram demonstradas (Shultz 1993(Shultz , 1999 (Anderson & Selden 1997). É importante salientar que esse uso específico do termo cefalotórax é distinto o uso mais geral no jargão aracnológico que é sinônimo de prosoma.…”
Section: Opistossoma E Seus Apêndicesunclassified
“…Nos Xiphosura viventes e espécies fósseis próximas, mas não no conjunto heterogêneo de espécies fósseis conhecidas como Synziphosurina (Anderson & Selden 1997), os tergitos opistossomais são fusionados em uma única e rígida placa (Shultz, 2001). …”
Section: Fusão Dos Tergitos Dos Segmentos Opistossomais (0 = Ausente;unclassified