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Corallimorphus profundus in shallow Antarctic habitats: Bionomics, histology, and systematics (Cnidaria: Hexacorallia) Naturalis
Riemann-Zürneck, K.; Iken, K..
In March 2000 and November/December 2001 thirteen specimens of Corallimorphus profundus Moseley, 1877, a conspicuous, anemone-like cnidarian, were hand-sampled by SCUBA diving in 30 to 40 m depth off US Palmer Station, Antarctic Peninsula. Corallimorphus species were formerly recorded only from deep water habitats from where they had been brought up more or less damaged, with most of their epithelia lost or macerated. The present well preserved specimens offer the opportunity to study various aspects of the species’ morphology and biology, particularly as one mature female contained a full cycle of oogenesis besides two batches of brooded developmental stages. Most of the results obtained demonstrate that the genus Corallimorphus shows features and...
Tipo: Article / Letter to the editor Palavras-chave: Corallimorpharia; Corallimorphidae; Corallimorphus; Nectactis; Scleractinia; Micrabaciidae; Leptopenus; Stephanophyllia; Letepsammia; Histology; Cnidom; Reproduction; Ecology; Systematics; Antarctic Peninsula; 42.79.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/220566
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Pterodactyloid pterosaur bones from Cretaceous deposits of the Antarctic Peninsula Anais da ABC (AABC)
KELLNER,ALEXANDER W.A.; RODRIGUES,TAISSA; COSTA,FABIANA R.; WEINSCHÜTZ,LUIZ C.; FIGUEIREDO,RODRIGO G.; SOUZA,GEOVANE A. DE; BRUM,ARTHUR S.; ELEUTÉRIO,LÚCIA H.S.; MUELLER,CARSTEN W.; SAYÃO,JULIANA M..
Abstract Fossil vertebrates from Antarctica are considerably rare, hampering our understanding of the evolutionary history of the biota from that continent. For several austral summers, the PALEOANTAR project has been carrying out fieldwork in the Antarctic Peninsula in search for fossils, particularly Cretaceous vertebrates. Among the specimens recovered so far are two bones referable to Pterosauria, more specifically to the Pterodacyloidea, the first volant reptiles from Antarctica to be fully described. MN 7800-V (part and counterpart) was recovered from a moraine at the Abernathy Flats (Santa Marta Formation, Lachman Crags Member, Santonian-Campanian) on James Ross Island. It is interpreted as the distal articulation of a first phalanx of the wing...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antarctica; Antarctic Peninsula; Pterosauria; PALEOANTAR; Cretaceous.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000400519
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