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Alalcomenaeus is one of the most
widespread and longest-surviving
arthropod genera of the
Early and
Middle Cambrian.
Known from over 300
specimens in...
- PreꞒ Ꞓ O S D C P T J K Pg N
Possible Silurian and
Devonian records Alalcomenaeus (top left),
Fortiforceps (top right),
Haikoucaris (middle), Leanchoilia...
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Bidentia difficilis Walcott, 1912)
Leanchoilia illecebrosa (Hou, 1987) (=
Alalcomenaeus? illecebrosus) Hou, 1987
Leanchoilia obesa He et al., 2017 Leanchoilia...
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Alalcomenaeus †Leanchoilia...
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Haikoucaris Yohoia Enaliktidae?
Bundenbachiellus Enalikter Leanchoiliidae Actaeus Alalcomenaeus Kanoshoia Leanchoilia Oelandocaris?
Oestokerkus Yawunik...
- Columbia, Canada, and it may be
actually a
poorly preserved specimen of
Alalcomenaeus. The
specimen is over 6 cm long and has a body
consisting of a head...
- evolved, or as a
class Megacheira including Yohoia (with Leanchoilia,
Alalcomenaeus, Oestokerkus, Fortiforceps, Jianfengia, Yawunik)
defined as euarthropods...
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counting Dinocarida,
Nektaspida and
Trilobita Acanthomeridion serratum Alalcomenaeus Almenia spinosa Apiocephalus elegans Branchiocaris yunnanensis Canadaspis...
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Alalcomenaeus †Leanchoilia...
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Alalcomenaeus †Leanchoilia...