Sõda

MEEDIAVALVUR: algab „sõjalise erioperatsiooni“ teine etapp nimega „SÕDA“

Hamulina subalternata sp. nov. Lower Barremian, Brestak, (Coll. St. Breskovski) at the Sofia University Museum of Paleontology and Historical Geology

Hamulinidae is an extinct ammonoid cephalopod family belonging to the order Ammonitida.[1] These cephalopod were fast-moving nektonic carnivores. They lived during the Lower Cretaceous period (Lower Barremian - Upper Barremian).

Description

The long main shaft is followed by a hook and a shorter, close, parallel or slightly divergent final shaft. The ammonitic suture is with a subtrifid L. The U is usually reduced or indifferentiated in adults.

Genera

Notes

  1. ^ Wright, C. W. with Callomon, J.H. and Howarth, M.K. (1996), Mollusca 4 Revised, Cretaceous Ammonoidea, vol. 4, in Treatise on Invertebrate Paleontology, Part L (Roger L. Kaesler et el. eds.), Boulder, Colorado: The Geological Society of America & Lawrence, Kansas: University of Kansas Press, pp. 230-232.

References


Kommenteeri