Eurypterid - Wikipedia
WEBEurypterids, also known as sea scorpions, were a group of chelicerates that lived from the Ordovician to the Permian period. They had segmented bodies, chelicerae, gnathobases, and a pair of wide swimming appendages called pterons.
Eurypterid | Fossil Arthropods, Sea Scorpions, Paleozoic Era
WEBEurypterids were ancient marine animals that resembled scorpions with many segments and oarlike appendages. They lived from the Ordovician to the Permian Period and ranged in size from small to giant, with the largest reaching 2.5 metres in length.
Pentecopterus decorahensis: Ancient Giant Sea Scorpion …
WEBSep 1, 2015 · The creature, Pentecopterus decorahensis, is the oldest known species of eurypterid (sea scorpion) – a group of aquatic arthropods that are ancestors of modern spiders, lobsters, and ticks. The discovery published in the journal BMC Evolutionary Biology was made by paleontologists from Yale University and the University of Iowa.
Insights into the 400 million-year-old eyes of giant sea scorpions ...
WEBNov 28, 2019 · Sea scorpions (Eurypterida, Chelicerata) of the Lower Devonian (~400 Mya) lived as large, aquatic predators.
Convergent evolution of giant size in eurypterids
WEBJul 31, 2024 · Eurypterids, commonly known as sea scorpions, are extinct chelicerates that ranged from the Ordovician to the late Permian . They are renowned as giant predators and repeatedly evolved body lengths in excess of 1 m, excluding their chelicerae.
Megalograptus model - Ordovician Eurypterid
WEBMegalograptus model, Ordovician Euryptrid is an extinct predatory arthropod that dominated the Late Ordovician and Silurian periods. Sometimes referred to as a sea scorpion, Megalograptus was notable for its size, with the largest species reaching lengths of up to 750mm. Itis regarded as one of the apex predator of the period.
Gigantic scorpions hunted in ancient seas - Earth Archives
WEBLearn about the eurypterids, the so-called "sea scorpions" that were among the largest arthropods on Earth. See fossils and reconstructions of these armored predators that lived from the Ordovician to the Permian periods.
Giant sea scorpion ancient sea predator | Earth | EarthSky
WEBSep 4, 2015 · Scientists have discovered what they say is the oldest described eurypterid — a person-sized sea scorpion that lived 467 million years ago.
The oldest and the scariest sea scorpion: a giant discovery
WEBSep 1, 2015 · The oldest and the scariest sea scorpion: a giant discovery. Described today in BMC Evolutionary Biology is the new eurypterid, Pentecopterus decorahensis. In this guest blog, expert in the field Dave Marshall explains more about the discovery.
The oldest described eurypterid: a giant Middle Ordovician …
WEBSep 1, 2015 · Pentecopterus decorahensis is the oldest described eurypterid, a giant chelicerate with spines and guttalate scales. It belongs to the Megalograptidae, a derived clade of eurypterids with extreme appendage differentiation.
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