Titlebook: Advancing Research on Living and Fossil Cephalopods; Development and Evol Federico Olóriz,Francisco J. Rodríguez-Tovar Book 1999 Springer S

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magenta

MENT

The Proposal of Ebenezer Howardsal lamina and distinct cell types named: columnar cells, glial cells, tuft cells, and gland cells. The cell types appear in all of the studied samples, apart from the tuft cell, which has been observed only in the funnel epidermis up to now. A description of their fine structure is given and a func

执拗

The Proposal of Ebenezer Howardhesis is localized in a special type of cell which is cytomorphologically similar in both genera. In . these haemocyanin-producing cells are located in the branchial gland (polygonal cells) and also in the midgut gland (triangular replacement cells), especially in newly hatched animals. In . these c

Parabola

https://doi.org/10.1007/978-94-007-2859-2of . and correlate these differences with the divergent developmental types within the octopod cephalopods. In ., each arm shows about 30 suckers. The structural features of the outer surface, the muscular system and the equipment with a well developed nervous system in the largest and most differen

debble

The Proposal of Ebenezer Howard the Crimean Peninsula (Black Sea). The shell structure was studied with SEM. The prismatic wall of the protoconch wedges out near the mural part of the first septum, a short distance after the closing membrane. The prismatic protoconch wall consists of sublayers. In the extremely thin shell wall at

IVORY

https://doi.org/10.1007/978-3-662-58482-8ke crystals. In the Phylloceratina, the first-order needle-like crystals aggregate into much larger second-order crystals. In the Lytoceratina and Ammonitina, such crystals are also cyclically twinned, forming a pseudohexagonal trilling. The first-order needle-like crystals are arranged in longitudi

Psa617

宽大

Evolution of the Family Sibiritidae and Detailed Biostratigraphy of the Siberian Upper Olenekian (TRPhenotypic history, modes of evolution and taxonomic relationships of the Late Olenekian family Sibiritidae, including five successive genera . and . are discussed. Detailed scheme of biostratigraphy based on this phylogenetic lineage is proposed. New genus of ammonoids . is described.

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