Paracymbites

Paracymbites is an extinct genus of lower Jurassic ammonite that lived during Raricostatum zone of upper Sinemurian. Animals belonging to this genus had small shells with semicircular whorl section and rounded or fastigate venter, of which umbilicus made about 25% of diameter. Last whorl could have been excentric. Keel was faint and it might have been only on the earlier part of the last whorl. Aperture had ventral rostrum. Body chamber made about 75% of whorl and was faintly plicate, or smooth.[1] [2]

Paracymbites
Temporal range: Sinemurian[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Superfamily:
Psiloceratoidea
Family:
Oxynoticeratidae
Genus:
Paracymbites

Spath, 1925
Type species
Ammonites dennyi Simpson, 1843
Species
  • P. dennyi Simpson, 1843
  • P. dennyiformis Rakús & Guex, 2002

Distribution

Fossils belonging to this genus were found in Great Britain, Tunisia and Morocco.[1]

Sources
  1. M. K. Howarth 2013. Treatise on Invertebrate Paleontology, Part L, Revised, Volume 3B, Chapter 4: Psiloceratoidea, Eoderoceratoidea, Hildoceratoidea.
  2. Donovan, D. T. (1966). "The Lower Liassic ammonites Neomicroceras gen. nov. and Paracymbites" (PDF). Palaeontology. 9 (2): 313–318.


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gollark: You can actually still see "Terrariola is stupid" backward on startup, as an artifact of the original terrariola-annoying use.
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gollark: The original aim was to annoy Terrariola.
gollark: But *how did a turtle 0 get there* and where did the potatOS installation come from?!
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