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Megasurcula keepi

Gastropoda - Neogastropoda - Pseudomelatomidae

Taxonomy
Pleurotoma (Bathytoma) keepi was named by Arnold (1907). Its type specimen is USNM 164993, a shell, and it is a 3D body fossil. Its type locality is Head of Topanga Canyon (Arnold 1907), which is in a Miocene coastal siliciclastic in the Topanga Canyon Formation of California.

It was recombined as Pseudotoma keepi by Stewart (1946); it was recombined as Megasurcula keepi by Addicott (1970).

Sister species lacking formal opinion data
M. carpentaria, M. carpenteriana, M. carpenteriana, Surculites cryptoconoides

Synonymy list
YearName and author
1907Pleurotoma (Bathytoma) keepi Arnold p. 529 figs. Plate XLVI, fig. 5
1946Pseudotoma keepi Stewart p. 100
1970Megasurcula keepi Addicott p. 133 figs. Plnte 18, figurt's 15, 16, 20

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classGastropoda
subclassCaenogastropoda(Cox 1959)
RankNameAuthor
—Sorbeoconcha(Ponder and Lindberg 1997)
—Hypsogastropoda(Ponder and Lindberg 1997)
superorderLatrogastropodaRiedel 2000
orderNeogastropodaThiele 1929
superfamilyConoidea(Rafinesque 1815)
familyPseudomelatomidae(McLearn 1971)
genusMegasurculaCasey 1904
specieskeepi()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Megasurcula keepi Arnold 1907
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitec
Locomotion: actively mobilesuperf
Life habit: epifaunalsuperf
Diet: carnivoresuperf
Vision: limitedc
Created: 2009-09-10 08:08:14
Modified: 2009-09-10 10:08:14
Source: superf = superfamily, c = class
References: Hendy et al. 2009, Kiessling 2004

Age range: base of the Early/Lower Miocene to the top of the Middle Miocene or 23.04000 to 11.63000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Miocene23.04 - 15.98USA (California) Megasurcula keepi (94853 196138) Pseudotoma keepi (167645)
Middle Miocene15.98 - 11.63USA (California) Pleurotoma keepi (237493)