Deloffrella hauteriviana

Granier, Bruno, Clavel, Bernard, Charollais, Jean & MarcWeidmann, 2014, Latest Jurassic - Early Cretaceous Dasycladalean Algae (Chlorophyta) From The Morand Drilling At Montricher (Canton Of Vaud, Switzerland), Acta Palaeontologica Romaniae 10 (1 - 2), pp. 1-2 : 29

Deloffrella hauteriviana (Masse in Masse et al.)

( Fig. 5c ; Fig. 7p, r )

This tiny species was recently revised (Granier, 2013b). It was transfered from the genus Dissocladella (Pia in Rao & Pia), which is part of the Family Triploporellaceae , to the genus Deloffrella Granier & Michaud , which is part of the Family Thyrsoporellaceae . The Dissocladellas have two orders of laterals and they are cladosporate (see below); on the other hand, the Deloffrellas have four orders of laterals and they are syringosporate. According to Clavel et al. (2007, 2013), Deloffrella hauteriviana is not younger than the earliest Barremian. In the cored section, it was identified twice, within the “Pierre jaune de Neuchâtel ” (reworked) and at the eroded top of the “Urgonien blanc”.

Figures

Fig. 5 a to p (scale bar: 250 µm): a random section of Terquemella sp., "Urgonien jaune", Upper Hauterivian, sample 107; b random section of Terquemella sp., "Urgonien jaune", Upper Hauterivian, sample 128; c subtransverse section of Deloffrella hauteriviana, " Pierre jaune", Lower Hauterivian, sample 171; d section of a lateral of Rajkaella minima, Vions Fm, Upper Berriasian, sample 287; e section of a lateral of Rajkaella minima, Pierre Châtel Formation, Middle Berriasian, sample 312; f subtransverse section of Salpingoporella steinhauseri, Pierre Châtel Formation, Middle Berriasian, sample 307; g oblique section of Salpingoporella steinhauseri, Pierre Châtel Formation, Middle Berriasian, sample 307; h tangential section of Salpingoporella steinhauseri, Pierre Châtel Formation, Middle Berriasian, sample 307; i oblique section of a verticil of Actinoporella sp. (note: the corona structure is visible), Pierre Châtel Formation, Middle Berriasian, sample 301; j oblique section of a verticil of Clypeina parasolkani, Pierre Châtel Formation, Middle Berriasian, sample 310; k subaxial section of a verticil of Clypeina parasolkani, Pierre Châtel Formation, Middle Berriasian, sample 310; l oblique section of a verticil of Clypeina parasolkani, Pierre Châtel Formation, Middle Berriasian, sample 310; m subtransverse section of a verticil of Clypeina parasolkani, Pierre Châtel Formation, Middle Berriasian, sample 309; n oblique section of Clypeina aff. parasolkani (two fertile verticils visible), transition Vions - Pierre Châtel formations, Middle-Upper Berriasian, sample 291.8; o subaxial section of Clypeina aff. parasolkani (three fertile verticils visible), transition Vions - Pierre Châtel formations, Middle-Upper Berriasian, sample 291.8; p oblique section of Otternstella lemmensis, Pierre Châtel Formation, Middle Berriasian, sample 317

Fig. 7 a to o (scale bar: 250 µm): a tangential to oblique section of Salpingoporella muehlbergii, "Urgonien blanc", Upper Hauterivian, sample 42; b transverse section of Salpingoporella muehlbergii, "Urgonien blanc", Upper Hauterivian, sample 42; c oblique section of Salpingoporella muehlbergii, "Urgonien blanc", Upper Hauterivian, sample 42; d oblique section of Salpingoporella genevensis, "Urgonien blanc", Upper Hauterivian, sample 40; e oblique section of Suppiluliumaella sp., "Urgonien jaune", Upper Hauterivian, sample 96; f oblique section of Suppiluliumaella sp., "Urgonien jaune", Upper Hauterivian, sample 96; g oblique section of Suppiluliumaella sp., "Urgonien jaune", Upper Hauterivian, sample 96; h oblique section of a verticil of Falsolikanella danilovae, "Urgonien jaune", Upper Hauterivian, sample 116; i transverse section of Salpingoporella melitae, "Urgonien blanc", Upper Hauterivian, sample 42; j oblique section of Cylindroporella sp., "Urgonien blanc", Upper Hauterivian, sample 71; k oblique section of Salpingoporella heraldica, "Urgonien jaune", Upper Hauterivian, sample 115; l oblique section of Angioporella fouryae, "Urgonien jaune", Upper Hauterivian, sample 115; m subtransverse section of Suppiluliumaella sp., "Urgonien jaune", Upper Hauterivian, sample 96; n tangential section of a sterile verticil of Angioporella fouryae, "Urgonien jaune", Upper Hauterivian, sample 115; o tangential section of a verticil of Pseudoclypeina sp., "Urgonien blanc", Upper Hauterivian, sample 72; p to u (scale bar: 500 µm): p oblique section of Deloffrella hauteriviana, "Urgonien blanc", Upper Hauterivian, sample 37.85; q subtransverse section of Dissocladella? sp., "Urgonien blanc", Upper Hauterivian, sample 90; r oblique section of Deloffrella hauteriviana, "Urgonien blanc", Upper Hauterivian, sample 37.85; s axial section of Oroseina sp., "Urgonien jaune", Upper Hauterivian, sample 114; t random section of Oroseina sp., "Urgonien jaune", Upper Hauterivian, sample 112; u tangential section of Oroseina sp., "Urgonien jaune", Upper Hauterivian, sample 112.