Cephalopoda - Phylloceratida - Phylloceratidae

Alternative combinations: Ammonites (Scaphites) ramosum, Ammonites (Scaphites) ramosus, Hypophylloceras (Neophylloceras) ramosus, Neophylloceras ramosum, Phylloceras (Neophylloceras) ramosum

Synonyms: Phylloceras pachecoense Anderson 1958, Phylloceras pachecoensis Anderson 1958, Phylloceras vaculae Anderson 1958, Phylloceras vaculum Anderson 1958

Belongs to Hypophylloceras (Neophylloceras) according to C. Salazar et al. 2010

See also Anderson 1958, Henderson 1970, Henderson and McNamara 1985, Jones 1963, Matsumoto 1959, Matsumoto 1960, Matsumoto 1984, Ward and Kennedy 1993 and Wright et al. 1996

Sister taxa: Hypophylloceras (Neophylloceras) arturoi, Hypophylloceras (Neophylloceras) groenlandicum, Hypophylloceras (Neophylloceras) hetonaiense, Hypophylloceras (Neophylloceras) inflatum, Hypophylloceras (Neophylloceras) nera, Hypophylloceras (Neophylloceras) surya, Hypophylloceras (Neophylloceras) velledaeforme, Hypophylloceras (Neophylloceras) victriense, Neophylloceras marshalli, Neophylloceras meridianum, Neophylloceras radiatum, Neophylloceras ramosus, Neophylloceras ultimum, Neophylloceras ultinatum, Phylloceras (Neophylloceras) decipiens

Type specimens:

• Hypophylloceras (Neophylloceras) ramosum: USNM 12451, a shell. Its type locality is Naibuchi Area, Eupachydiscus haradai ammonite zone, Sakhalin, which is in a Maastrichtian marine sandstone/shale in the Russian Federation.
• Phylloceras pachecoense: Its type locality is CAS loc. 29108, Salt Creek, which is in a Campanian marine sandstone in the Panoche Formation of California.
• Phylloceras pachecoensis:
• Phylloceras vaculae: Its type locality is CIT loc. 1346, Little Cow Creek, which is in a Turonian marine horizon in the Redding Formation of California.

Ecology: nektonic carnivore

Average measurements (in mm): shell diameter 34.9

Distribution:

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Specimen images are retrieved through the ePANDDA API.