Anomalocaridid Fossils

Fossil Pictures

 

Fossils of

Also see:

Phylum Arthropoda
 


Anomalocaridid Fossil Record

Anomalocaridid Classification
   Kingdom Animalia
      Phylum Arthropoda Stem Group
            Class Dinocaridida †
                  Order Radiodonta (-) †
                    Suborder Anomalocarida (-) †
                         Family Anomalocarididae †

The Cambrian Anomalocaridid fossil record mainly comprises specimens from lagerstätten fossil sites in Australia, Canada, China, United States, Canada, Poland and Australia.

from the early Cambrian Chengjiang Maotianshan Shales (525 million years ago), was a . X, from the Burgess Shale (505 million years ago) have been classified as .

Anomalocaridid Evolution

Anomalocarid crown predators of the Cambrian seas

Subphylum Chelicerata Fossils
Aglaspid Arthropod Fossil
Eurypterus remipes Fossil
  
Euproops Horseshoe Crab
Liocranid Spider in Fossil Amber
Aglaspid Arthropod
Chelicerata Stem Group
Weeks Formation
Millard County, Utah
Eurypterus remipes
Class Merostomata
Order Eurypterida
Upper Silurian
Bertie Group, New York
Euproops Horseshoe Crab
Class Merostomata
Order Xiphosura
Pennsylvanian
Lancashire, United Kingdom
Liocranid Spider
Class Arachnida
Order Araneae
Eocene - Oligocene
Kaliningrad District, Russia
Male Spider Fossil
Fossil Jumping Spiders
Spider Fossil
Mesolimulus walchi
Male Spider
Class Arachnida
Order Araneae
Lower Cretaceous
Liaoning Province, China
Jumping Spiders
Class Arachnida
Order Araneae
Pliocene to Pleistocene
Andes Mountains, Colombia
Spider
Class Arachnida
Order Araneae
Miopcene
Central Nevada
Mesolimulus Horseshoe Crab
Class Merostomata
Order Xiphosura
Jurassic
Solnhofen Lagerstätte, Germany

References and resources and notes:

  1. Nature - An eye-opening fossil - Ancient predators had vision sharper than modern insects summarizing: Acute vision in the giant Cambrian predator Anomalocaris and the origin of compound eyes
  1. Schinderhannes (genus) from Solnhofen https://en.wikipedia.org/wiki/Schinderhannes_%28genus%29#/media/File:Schinderhannes.jpg - fair use image of: The one known specimen of Schinderhannes. Credit: Steinmann Institute/University of Bonn > see: https://en.wikipedia.org/wiki/Schinderhannes_%28genus%29 - Schinderhannes bartelsi is an anomalocarid known from one specimen from the lower Devonian Hunsrück Slates. Its discovery was astonishing because previously, anomalocaridids were known only from exceptionally well-preserved fossil beds (Lagerstätten) from the Cambrian, 100 million years earlier. Gabriele Kühl, Derek E. G. Briggs & Jes Rust (2009). "A great-appendage arthropod with a radial mouth from the Lower Devonian Hunsrück Slate, Germany". Science 323 (5915): 771–773.> Great-appendage arthropods, characterized by a highly modified anterior limb, were previously unknown after the Middle Cambrian. One fossil from the Lower Devonian Hunsrück Slate, Germany, extends the stratigraphic range of these arthropods by approximately 100 million years. Schinderhannes bartelsi shows an unusual combination of anomalocaridid and euarthropod characters, including a highly specialized swimming appendage. A cladistic analysis indicates that the new taxon is basal to crown-group euarthropods and that the great-appendage arthropods are paraphyletic. This new fossil shows that features of the anomalocaridids, including the multisegmented raptorial appendage and circular plated mouth, persisted long after the initial radiation of the euarthropods

http://www.sciencemag.org/content/288/5467/841

Also get:

Science - Age of Neoproterozoic Bilatarian Body and Trace Fossils, White Sea, Russia: Implications for Metazoan Evolution

Sirius Passet - The fauna is inevitably compared to that of the Burgess Shale, although it is probably ten to fifteen million years older – 518 vs. 505 Ma (Martin et al. 2[000; Nevadella zone, stage 3 of Cambrian Series 2[2]) – and more closely contemporaneous with the fauna of the Maotianshan shales from Chengjiang. - Peel, J.S. and M. Stein. A new Arthropod from the Lower Cambrian Sirius Passet Fossil-Lagerstätten of North Greenland. Bulletin of Geosciences 84(4). 2009