"Crocodylus" megarhinus

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"Crocodylus" megarhinus_table_infobox_0

"Crocodylus" megarhinus

Temporal range: Eocene"Crocodylus" megarhinus_header_cell_0_0_0

Scientific classification"Crocodylus" megarhinus_header_cell_0_1_0
Kingdom:"Crocodylus" megarhinus_cell_0_2_0 Animalia"Crocodylus" megarhinus_cell_0_2_1
Phylum:"Crocodylus" megarhinus_cell_0_3_0 Chordata"Crocodylus" megarhinus_cell_0_3_1
Class:"Crocodylus" megarhinus_cell_0_4_0 Reptilia"Crocodylus" megarhinus_cell_0_4_1
Order:"Crocodylus" megarhinus_cell_0_5_0 Crocodilia"Crocodylus" megarhinus_cell_0_5_1
Superfamily:"Crocodylus" megarhinus_cell_0_6_0 Crocodyloidea"Crocodylus" megarhinus_cell_0_6_1
Genus:"Crocodylus" megarhinus_cell_0_7_0 Incertae sedis"Crocodylus" megarhinus_cell_0_7_1
Species:"Crocodylus" megarhinus_cell_0_8_0 †"C." megarhinus"Crocodylus" megarhinus_cell_0_8_1
Binomial name"Crocodylus" megarhinus_header_cell_0_9_0
Synonyms"Crocodylus" megarhinus_header_cell_0_10_0

"Crocodylus" megarhinus is an extinct species of crocodile from the Eocene of Egypt. "Crocodylus" megarhinus_sentence_0

A partial skull was found by British paleontologist Charles William Andrews in the Fayum Depression. "Crocodylus" megarhinus_sentence_1

Andrews named Crocodylus megarhinus in 1905 on the basis of the holotype skull. "Crocodylus" megarhinus_sentence_2

A complete skull was also uncovered from Egypt in 1907 but was not recognized as "C." megarhinus until 1927. "Crocodylus" megarhinus_sentence_3

"C." megarhinus shares many features with living crocodiles like the Nile crocodile (C. niloticus), including a robust triangular skull that is shorter than most other crocodiles. "Crocodylus" megarhinus_sentence_4

Similarities are also seen in the teeth of the two species. "Crocodylus" megarhinus_sentence_5

Like living crocodiles, "C." megarhinus has several constricted areas along the upper jaw that provide spaces for the teeth of the lower jaw when the mouth is closed. "Crocodylus" megarhinus_sentence_6

The proportions of "C." megarhinus and C. niloticus are so similar that American paleontologist Charles C. Mook considered it "very probable that C. megarhinus is a direct ancestor of C. "Crocodylus" megarhinus_sentence_7

niloticus." "Crocodylus" megarhinus_sentence_8

A second Fayum crocodilian, "Crocodylus" articeps, was named alongside "C." megarhinus. "Crocodylus" megarhinus_sentence_9

Andrews distinguished "C." articeps from "C." megarhinus on the basis of its narrower snout, which is more similar to the slender-snouted crocodile than the Nile crocodile. "Crocodylus" megarhinus_sentence_10

"C." articeps has recently been synonymized with "C." megarhinus, and may represent a less mature form in the species' population. "Crocodylus" megarhinus_sentence_11

Although it has traditionally been described as a species of Crocodylus, "C." megarhinus has been placed outside the genus in many recent phylogenetic analyses. "Crocodylus" megarhinus_sentence_12

A new genus has not yet been erected for the species. "Crocodylus" megarhinus_sentence_13

"C." megarhinus is usually found to be a basal crocodyline outside the genus but still more closely related to it than the false gharial or mekosuchines. "Crocodylus" megarhinus_sentence_14

Below is a cladogram modified from Puértolas et al. "Crocodylus" megarhinus_sentence_15

(2011) showing its phylogenetic placement among crocodiles: "Crocodylus" megarhinus_sentence_16

A 2017 paper by Wu et al. "Crocodylus" megarhinus_sentence_17

(2017) recovers "Crocodylus" megarhinus as a relative of mekosuchines. "Crocodylus" megarhinus_sentence_18


Credits to the contents of this page go to the authors of the corresponding Wikipedia page: en.wikipedia.org/wiki/"Crocodylus" megarhinus.