Ammonoids are extinct spiral shelled cephalopods comprising the subclass Ammonoidea. They are more closely related to living coleoids (i.e., octopuses, squid...

dictionary. Ammonites are an extinct group of marine animals, including: Ammonoidea, a subclass Ammonitida, an order Ammonitina, a suborder Ammonite may also...

cephalopods have been identified. Two important extinct taxa are the Ammonoidea (ammonites) and Belemnoidea (belemnites). Extant cephalopods range in...

the Anarcestida, is the ancestral order within the cephalopod subclass Ammonoidea originating from bactritoid nautiloids, that lived in what would become...

The Solnhofen Limestone or Solnhofen Plattenkalk is a collective term for multiple Late Jurassic lithographic limestones in southeastern Germany, which...

Barremitinae is a subfamily belonging to the Ammonoidea subclass. Whorl section in this group ranges from more or less circular through rectangular to...

Permian Ammonoidea. Miller, Furnish, and Schindewolf (1960) ; Paleozoic Ammonoidea, in the Treatise on Invertebrat Paleontology, Part L, Ammonoidea Furnish...

primarily orthoconic orders (including the ancestors for Bacritida and Ammonoidea); and Nautilitoidea, which includes the first coiled cephalopods, Tarphycerida...

The Nusplingen Limestone (German: Nusplingen Plattenkalk) is a geological formation in Baden-Württemberg, Germany. It preserves fossils dating to the Kimmeridgian...

Eleniceras is an extinct genus of cephalopods belonging to the Ammonoidea subclass. The genus was named after the Bulgarian town of Elena. The holotype...

List of mollusc orders illustrates the 97 orders in the phylum Mollusca, the largest marine animal phylum. 85,000 extant species are described, making...

crinoids are all abundant in the oceans. First fully coiled cephalopods (Ammonoidea and Nautilida, independently) with the former group very abundant (especially...

Eleniceras stevrecensis is an extinct species of cephalopods belonging to the Ammonoidea subclass. This animal lived 140–129 million years ago during the Hauterivian...

The Rotzo Formation (also known in older literature as the Noriglio Grey Limestone Formation) is a geological formation in Italy, dating to roughly between...

early Emsian (Devonian) in the Tafilalt (Morocco), the origin of the Ammonoidea, and the first African pyrgocystid edrioasteroids, machaerids and phyllocarids"...

The Gogo Formation in the Kimberley region of Western Australia is a Lagerstätte that exhibits exceptional preservation of a Devonian reef community. The...

genera Kosmoceras, Perisphinctes and Harpoceras (class Cephalopoda, order Ammonoidea) established by Waagen in 1869". Opinions and Declarations Rendered by...

Furnish, and Schindewolf; Paleozoic Ammonoidea in the Treatise on Invertebrate Paleontology, Part-L, Ammonoidea, 1957, Geological Society of America...

Analytoceratinae containing Analytoceras. W.J Arkell et al 1957. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology, Part L Ammonoidea, p. L192-193 v t e...

a number of organic materials used as gems, including: Amber Ammolite Ammonoidea Bone Copal Coral Ivory Jet Nacre (Mother of pearl) Operculum Pearl Seashell...

and even possibly from the Silurian. The Bactritidae gave rise to the Ammonoidea in the Early Devonian starting with an early Bactrites and going with...

Eleniceras nikolovi is an extinct species of cephalopods belonging to the Ammonoidea subclass. This animal lived 140–129 million years ago during the Hauterivian...

simple goniatitic sutures. Treatise on Invertebrate Paleontology, Part L, Ammonoidea; Geological Society of America and University of Kansas, 1957, Database...

The largest prehistoric animals include both vertebrate and invertebrate species. Many of them are described below, along with their typical range of size...

belemnites. Class Cephalopoda Subclass Nautiloidea: nautilus Subclass †Ammonoidea: ammonites Subclass Coleoidea Division †Belemnoidea: extinct belemnoids...

molluscs, including other cephalopods like the nautiloids and the extinct Ammonoidea. They have eight limbs like other Coleoidea, but lack the extra specialised...

Belemnitella was declared the state fossil of Delaware on 2 July 1996. Ammonoidea Belemnoidea Orthoceratoidea Iba, Y.; Sano, S. -I.; Mutterlose, J.; Kondo...

Columbia Arkell et al., 1957, Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L, Ammonoidea. Geological Society of America & University...

northern Siberia Arkell et al. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L, Ammonoidea. Geol Soc of America and Univ Kansas press...

Cyclolobidae: Goniatitid Ammonoidea belonging to the Cycloloboidea with thickly discoidal to subglobular shells with a small but open umbilicus and ammonitic...