| Registro completo |
| Provedor de dados: |
Naturalis
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| País: |
Netherlands
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| Título: |
On Winkleria maastrichtensis nov. gen. et nov. spec. (Echinoidea, Regularia, Stirodonta, Phymosomina, ? Phymosomatidae) from the Upper-Cretaceous (Md) of Maastricht (Limburg, Netherlands)
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| Autores: |
Engel, H.
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| Data: |
1964
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| Ano: |
1964
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| Resumo: |
Characterized by a small hemispherical test. Ambulacra with simple primaries; pores in a regular, simple series; nearly every ambulacral primary plate with a tubercle. Ambulacra hourglass-shaped, as they are narrower at the ambitus, while the interambulacrals are extraordinarily widened there, extra IA plates wedging in from the borders. IA plates low, each with a horizontal series of tubercles. No clear distinction between primary and secondary tubercles, no distinct vertical series of tubercles. Apical system unknown. Peristome rather large. Spines unknown.
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| Tipo: |
Article / Letter to the editor
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| Identificador: |
http://www.repository.naturalis.nl/record/505094
http://www.repository.naturalis.nl/document/548751
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| Formato: |
application/pdf
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| Fonte: |
Beaufortia (0067-4745) vol.10 (1964) nr.126 p.207
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| Direitos: |
(c) Naturalis
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