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Showing results for tags 'tff-oilshale-ch1794'.
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Taxonomy according to Fossilworks.org. Diagnosis from Fritzsche, 1980, p. 217: "A Hipposyngnathus from the upper Modelo Formation of southern California with about 22 dorsal rays; 20-22 trunk rings; 42-44 tail rings; snout 1.5-1.9 in head; orbit 7.8-12.0 in head; pouch rings equal to trunk rings; pectoral fin present but rays not countable; pouch ridge as long as adjacent trunk. Maximum size known 242 mm SL. Discussion about the genus Hipposyngnathus by Fritzsche, 1980, p. 218: "The genus Hipposyngnathus is unusual in having a very exaggerated ventral trunk ridge. Jerzmanska (1968) suggested that the males alone had this ridge and that it was the site of egg deposition. She also speculated that pouch flaps were present on either side of the ridge. However, the extant genus Maroubra also has an enlarged ventral trunk ridge, although not so well developed as in Hipposyngnathus, and its eggs are not protected by flaps. It seems improbable that Hipposyngnathus had brood-pouch flaps." Identified by oilshale using Fritzsche, 1980. References: Jerzmańska, A. (1968). Ichtyofaune des couches à ménilite (flysch des Karpathes). Acta Palaeontologica Polonica, 13(3), 379-488. Fritzsche, Ronald A.(1980). Revision of the eastern Pacific Syngnathidae (Pisces: Syngnathiformes), including both Recent and fossil forms. PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES, Vol 42, 181-227. Přikryl, Tomáš & Krzeminski, Wieslaw & Kania, Iwona. (2011). New information about the anatomy of a peculiar fish of the genus Hipposyngnathus Daniltshenko, 1960. Comptes Rendus Palevol - C R PALEVOL. 10. 559-566. 10.1016/j.crpv.2011.05.001.
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