Ecphora gardnerae

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Ecphora gardnerae
Temporal range: Miocene
Ecphora quadricostata.jpg
An apertural view of a shell of Ecphora gardnerae gardnerae, drawn by J. C. McConnell [1]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Family: Muricidae
Genus: Ecphora
Species:
E. gardnerae
Binomial name
Ecphora gardnerae
Wilson, 1987

Ecphora gardnerae is a species of extinct predatory ocenebrinid murex gastropod. Shells of E. gardnerae are found in Miocene-aged marine strata of Maryland and Virginia.

Subspecies

Subspecies include:

Geological history

Ecphora gardnerae fossil Ecphora.jpg
Ecphora gardnerae fossil

This species of large carnivorous sea snail lived during the Miocene epoch, and became extinct more than five million years ago.

This species was previously known as Ecphora quadricostata , but that name is now restricted to a species which is found from Pliocene strata in Virginia to Florida. The Miocene-aged specimens found in Maryland have been assigned to a different taxon, Ecphora gardnerae. [2]

Life habits

As with most other muricids, Ecphora sea snails bored holes through the hard shells of other mollusks, usually bivalves, or sometimes other snails, including other, smaller Ecphoras, in order to feed on their soft insides using a toothed, ribbonlike appendage (common to almost all gastropods) known as a radula. [3]

Commemoration of the fossil

In March 1994, Dr. Eric Seifter testified before the Maryland Legislature that the classification of the Maryland State Fossil, Ecphora quadricostata was invalid (quadricostata is not actually found in Maryland) and needed to be changed to Ecphora gardnerae gardnerae. [3] The fossil was named for geologist Julia Anna Gardner. [4]

Related Research Articles

<span class="mw-page-title-main">Ecphora</span> Extinct genus of gastropods

Ecphora is the common name for a group of extinct predatory marine gastropod mollusks within the family Muricidae, the rocks snails or murexes. The common name is based on the first officially described genus, Ecphora. The entire lineage of these ocenebrinid murexes are descended from the Eocene murex, Tritonopsis. Ecphoras were indigenous to the North American Eastern Seaboard, being found in marine strata from the Late Eocene until their extinction during the Pliocene. Many ecphora species are important index fossils.

<span class="mw-page-title-main">Julia Anna Gardner</span> American geologist

Julia Anna Gardner, was an American geologist who worked for the United States Geological Survey for 32 years. She was known worldwide for her work in stratigraphy and mollusc paleontology.

<span class="mw-page-title-main">Paleontology in Maryland</span>

Paleontology in Maryland refers to paleontological research occurring within or conducted by people from the U.S. state of Maryland. The invertebrate fossils of Maryland are similar to those of neighboring Delaware. For most of the early Paleozoic era, Maryland was covered by a shallow sea, although it was above sea level for portions of the Ordovician and Devonian. The ancient marine life of Maryland included brachiopods and bryozoans while horsetails and scale trees grew on land. By the end of the era, the sea had left the state completely. In the early Mesozoic, Pangaea was splitting up. The same geologic forces that divided the supercontinent formed massive lakes. Dinosaur footprints were preserved along their shores. During the Cretaceous, the state was home to dinosaurs. During the early part of the Cenozoic era, the state was alternatingly submerged by sea water or exposed. During the Ice Age, mastodons lived in the state.

<i>Ecphora</i> (genus) Extinct genus of gastropods

Ecphora is a genus of extinct predatory ocenebrinid murexes indigenous to the North American Eastern Seaboard from Miocene until their extinction during the Pliocene. The common name for this genus and a group of related genera is "ecphora"(s).

Trisecphora is a genus of extinct predatory ocenebrinid murexes indigenous to the Miocene coastline of what is now Maryland, North Carolina, and Virginia from the Aquitanian epoch until their extinction near the end of the Serravallian epoch. The common name for this genus and their relatives is "ecphora"(s).

Inodrillia whitfieldi is an extinct species of sea snail, a marine gastropod mollusk in the family Horaiclavidae.

Mangelia gardnerae is a minute extinct species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

Carinodrillia elocata is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.

Compsodrillia drewi is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.

Crassispira cymation is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.

Crassispira tyloessa is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.

Crassispira perrugata is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.

Crassispira promensis is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.

Hindsiclava henekeni is an extinct species of sea snail, a marine gastropod mollusc in the family Pseudomelatomidae, the turrids and allies.

Leucosyrinx rugata is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.

Conasprella burckhardti is an extinct species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.

Sediliopsis angulata is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.

Daphnella pagera is an extinct species of sea snail, a marine gastropod mollusc in the family Raphitomidae.

Urosalpinx rusticus is an extinct species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

Urosalpinx subrusticus is an extinct species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

References

  1. Clark, Shattuck & Dall, The Miocene Deposits of Maryland, Maryland Geological Survey (1904), Pl. LII no. 1 as "Ecphora quadricostata".
  2. Ward & Gilinsky, 'Ecphora (Gastropoda: Muricidae) from the Chesapeake Group of Maryland and Virginia', Notulae Naturae, No. 469 (1988), p. 1, available on line here
  3. 1 2 "www.statefossils.com". Maryland State Fossil. Retrieved 23 July 2010.
  4. "Maryland's Official State Fossil Shell". Maryland Geological Survey. Archived from the original on 16 May 2011. Retrieved 19 August 2012.