Asaphida

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Asaphida is an order of trilobites. There are 744 species of Asaphida, in 262 genera and 26 families. This order has been around since the cambrian series 2 epoch. It includes groups like Hungaiidae, Remopleuridae, and Ptychaspididae. They are fast moving animals.

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URI: http://eol.org/schema/terms/fastMoving
Definition: Organism that is capable of fast, active locomotion.

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EOL has data for 10 attributes, including:

ecomorphological guild
- URI: http://eol.org/schema/terms/EcomorphologicalGuild
- Definition: organisms that share certain morphological traits due to adaptation to similar environments and ecological roles
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low-level epifaunal
- URI: http://eol.org/schema/terms/lowEpifaunal
- Definition: Organism living on the surface of the substratum in the immediate vicinity of the seafloor.
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first appearance
- URI: http://eol.org/schema/terms/FossilFirst
- Definition: The first appearance of this taxon in the fossil record.
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cambrian series 2 epoch
- URI: http://resource.geosciml.org/classifier/ics/ischart/CambrianSeries2
- Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
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habitat
- URI: http://purl.obolibrary.org/obo/RO_0002303
- Definition: x has habitat y if: x is an organism, y is a habitat, and y can sustain and allow the growth of a population of x
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marine
- URI: http://purl.obolibrary.org/obo/ENVO_00000447
- Definition: An aquatic biome that comprises systems of open-ocean and unprotected coastal habitats, characterized by exposure to wave action, tidal fluctuation, and ocean currents as well as systems that largely resemble these. Water in the marine biome is generally within the salinity range of seawater: 30 to 38 ppt.
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mineralized skeleton contains
- URI: https://eol.org/schema/terms/mineralizedSkeletonContains
- Definition: Component found in mineralized skeletal tissue, (a specialized form of biogenic tissue in which the extracellular matrix is mineralized, and which functions in mechanical and structural support.)
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calcite
- URI: http://purl.obolibrary.org/obo/CHEBI_46719
- Definition: Calcium carbonate (CO3Ca), calcite structure
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number of fossil occurrences
- URI: http://eol.org/schema/terms/fossilOccPBDB
- Definition: The number of fossil occurrences in the Paleobiology Database (https://paleobiodb.org) that are identified as belonging to a particular taxon or any of its subtaxa.
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10429
visual system
- URI: http://purl.obolibrary.org/obo/UBERON_0002104
- Definition: The sensory system subserving the sense of vision.
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compound eyes
- URI: http://purl.obolibrary.org/obo/UBERON_0000018
- Definition: A light sensing organ composed of multiple ommatidia, visual units consisting of a limited number of rhabdomeric photoreceptor cells, cornea-secreting epithelial cells, interommatidial pigment cells, and sometimes crystalline cone cells
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Known occurrences, collected specimens and observations of Asaphida. View this species on GBIF

Museum of Comparative Zoology, Harvard University cc-by-nc-sa-3.0

Asaphida includes 12 children: