Acanthoscaphites is an extinct genus of cephalopod belonging to the Ammonite

Ammonite

Ammonite, as a zoological or paleontological term, refers to any member of the Ammonoidea an extinct subclass within the Molluscan class Cephalopoda which are more closely related to living coleoids Ammonite, as a zoological or paleontological term, refers to any member of the Ammonoidea an extinct...

 subclass. The average diameter of its shell was approximately three fourths of an inch, but some specimens have been found with a diameter of slightly over two inches.

Classification

Acanthoscaphites was first described by Schluter in 1872. Subsequent taxonomic revisions may have rendered Acanthoscaphites synonymous with Scaphites and Trachyscaphites. Little information is available regarding the validity or synonymy of the Acanthoscaphites genus, so this page may be inaccurate. Please use caution when referring to this article.

Species

Note: A. nodosa and A. nodosus may be misspellings of the same name.

• A. gibbus
• A. nodosa
• A. nodosus
• A. praequadrispinosus
• A. spiniger
• A. schmidi
• A. tridens

Subgenus Euroscaphites

• A. (Euroscaphites) varians blaszkiewiczi
• A. (Euroscaphites) varians
  • A. (Euroscaphites) varians varians

Biogeography

Acanthoscaphites was a widespread genus during Campanian

Campanian

The Campanian is, in the ICS' geologic timescale, the fifth of six ages of the Late Cretaceous epoch . The Campanian spans the time from 83.5 ± 0.7 Ma to 70.6 ± 0.6 Ma ...

 and Maastrichtian

Maastrichtian

The Maastrichtian is, in the ICS' geologic timescale, the latest age or upper stage of the Late Cretaceous epoch or Upper Cretaceous series, the Cretaceous period or system, and of the Mesozoic era or erathem. It spanned from 70.6 ± 0.6 Ma to 65.5 ± 0.3 Ma...

 times, approximately 80 million years ago. Its remains can be found in rocks of that age from many countries, such as:

• Armenia
  Armenia
  Armenia , officially the Republic of Armenia , is a landlocked mountainous country in the Caucasus region of Eurasia...
  
  
• Germany
  Germany
  Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...
  
  
• Poland
  Poland
  Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...
  
  
• Russia
  Russia
  Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...
  
  
• Sweden
  Sweden
  Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....
  
  
• Turkmenistan
  Turkmenistan
  Turkmenistan , formerly also known as Turkmenia is one of the Turkic states in Central Asia. Until 1991, it was a constituent republic of the Soviet Union, the Turkmen Soviet Socialist Republic . Turkmenistan is one of the six independent Turkic states...
  
  
• Ukraine
  Ukraine
  Ukraine is a country in Eastern Europe. It has an area of 603,628 km², making it the second largest contiguous country on the European continent, after Russia...
  
  
• United States
  United States
  The United States of America is a federal constitutional republic comprising fifty states and a federal district...
  
  
  • Fannin County, Texas
  • Red River County, Texas
  • Sumter County, Alabama