Several characters are interpreted as autapomorphies of Zapalasaurus bonapartei: cervical vertebrae.

The unit that yielded the holotype of this dinosaur is the Piedra Parada Member of the La Amarga Formation, whose age is regarded as Barremian-lower Aptian. View full-textĪn incomplete skeleton from Puesto Morales (Neuquén Province, Argentina) is described as a new species of sauropod, Zapalasaurus bonapartei. A discussion is presented about the morphology and ecology of this taxon in the light of pertinent literature. The new taxon is circumneutral to acidophilous and oligo- to mesotraphentic. producing a cruciform shape, the new species is distinguished by the tapering and narrowly rounded apices and the much higher stria density. However, the taxon also exhibits unique features that justify its separation at the species level from any currently known taxon within Fragilariforma: 1) the spines are subtended by a siliceous ring having short extensions projecting onto the valve face, 2) there is a portula lacking a labiate internal structure, and 3) the girdle bands lack perforations.

spines on the costae at the valve face/mantle junction, a portula along a stria, developed apical pore fields, and ligulate, open girdle bands. Williams & Round such as uniseriate striae recessed between thickened costae, simple round areolae. Light (LM) and scanning electron microscopy (SEM) data reveal that the taxon has several features congruent with taxa currently placed in Fragilariforma D. Morales, Manoylov & Bahls, is described from rivers in the northern United States of America. Urn:oclc:832720633 Republisher_date 20120901220843 Republisher_operator Scandate 20120828195201 Scanner new taxon, namely Fragilariforma horstii E. OL63297W Page-progression lr Page_number_confidence 87.86 Pages 142 Ppi 500 Related-external-id urn:isbn:1853816604 Urn:lcp:feministfables00namj:epub:79fcd51f-e342-4a9a-97ba-6344a8207752 Extramarc Columbia University Libraries Foldoutcount 0 Identifier feministfables00namj Identifier-ark ark:/13960/t6252vg7j Isbn 0907179045 Lccn 82202370 Ocr_converted abbyy-to-hocr 1.1.20 Ocr_module_version 0.0.17 Openlibrary OL22433402M Openlibrary_edition Access-restricted-item true Addeddate 16:23:37 Boxid IA155501 Boxid_2 BWB220150218 Camera Canon EOS 5D Mark II City London Donorįriendsofthesanfranciscopubliclibrary Edition Repr.

Feminist fables by suniti namjoshi pdf